VS6624Q0KP

VL6624 VS6624 1.3 Megapixel single-chip camera module Preliminary Data Features ■ ■ ■ ■ ■ 1280H x 1024V active pixels 3.0 µm pixel size, 1/3 inch optical format RGB Bayer color filter array Integrated 10-bit ADC Integrated digital image processing functions, including defect correction, lens shading correction, image scaling, demosaicing, sharpening, gamma correction and color space conversion Embedded camera controller for automatic exposure control, automatic white balance control, black level compensation, 50/60 Hz flicker cancelling and flashgun support Fully programmable frame rate and output derating functions Up to 15 fps SXGA progressive scan Low power 30 fps VGA progressive scan ITU-R BT.656-4 YUV (YCbCr) 4:2:2 with embedded syncs, YUV (YCbCr) 4:0:0, RGB 565, RGB 444, Bayer 10-bit or Bayer 8-bit output formats 8-bit parallel video interface, horizontal and vertical syncs, 54MHz (max) clock Two-wire serial control interface On-chip PLL, 6.5 to 54 MHz clock input Analog power supply, from 2.4 to 3.0 V Separate I/O power supply, 1.8 or 2.8 V levels Integrated power management with power switch, automatic power-on reset and powersafe pins Low power consumption, ultra low standby current Triple-element plastic lens, F# 3.2, 52° Horizontal field of view (VS6624) 8.0 x 8.0 x 6.1mm fixed focus camera module with embedded passives (VS6624) ■ ■ ■ ■ ■ ■ ■ 20-wire FPC attachment with board-to-board connector, 22 mm total length, for mobile application only 24-pin (ITU) shielded socket options Applications ■ ■ ■ ■ ■ ■ ■ ■ ■ Mobile phone Videophone Medical Machine vision Toys PDA Biometry Bar code reader Lighting control ■ ■ ■ ■ ■ ■ Description The VL6624/VS6624 is an SXGA CMOS color digital camera featuring low size and low power consumption targeting mobile applications. This complete camera module is ready to connect to camera enabled baseband processors, back-end IC devices or PDA engines. ■ ■ ■ July 2007 Rev 7 1/106 www.st.com 1 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. Contents VL6624/VS6624 Contents 1 2 3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 3.2 3.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Video pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Microprocessor functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 Operational modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 4.2 Streaming modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Mode transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5 Clock control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Input clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6 Frame control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Sensor mode control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Image size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Cropping module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Zoom. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Frame rate control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Horizontal mirror and vertical flip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Video pipe setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Context switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ViewLive Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7 Output data formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Line / Frame Blanking Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 YUV 4:2:2 data format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 YUV 4:0:0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 RGB and Bayer 10 bit data formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2/106 VL6624/VS6624 Contents Manipulation of RGB data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Dithering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Bayer 8-bit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 8 Data synchronization methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Embedded codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Prevention of false synchronization codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Mode 1 (ITU656 compatible) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Mode 2 Logical DMA channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 VSYNC and HSYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Horizontal synchronization signal (HSYNC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Vertical synchronization (VSYNC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Pixel clock (PCLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Master / Slave operation of PLCK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 9 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Initial power up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Minimum startup command sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 10 Host communication - I²C control interface . . . . . . . . . . . . . . . . . . . . . 35 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Detailed overview of the message format . . . . . . . . . . . . . . . . . . . . . . . . 36 Data valid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Start (S) and Stop (P) conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Index space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Types of messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Random location, single data write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Current location, single data read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 10.10 Random location, single data read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 10.11 Multiple location write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 10.12 Multiple location read stating from the current location . . . . . . . . . . . . . . 43 10.13 Multiple location read starting from a random location . . . . . . . . . . . . . . . 44 3/106 Contents VL6624/VS6624 11 Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Low level control registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 User interface map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 12 Optical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 12.1 12.2 Average sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Spectral response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 13 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 13.1 13.2 13.3 13.4 13.5 13.6 13.7 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 External clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Chip enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 I²C slave interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Parallel data interface timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 14 15 User precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 15.1 15.2 SmOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 LGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 16 17 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 4/106 VL6624/VS6624 List of tables List of tables Table 1. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Table 27. Table 28. Table 29. Table 30. Table 31. Table 32. Table 33. Table 34. Table 35. Table 36. Table 37. Table 38. Table 39. Table 40. Table 41. Table 42. Table 43. Table 44. Table 45. Table 46. Table 47. Table 48. Table 49. VS6624 signal description of 20-pin flex connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ITU656 embedded synchronization code definition (even frames). . . . . . . . . . . . . . . . . . . 27 ITU656 embedded synchronization code definition (odd frames). . . . . . . . . . . . . . . . . . . . 27 Mode 2 - embedded synchronization code definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Data type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Low-level control registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Device parameters [read only] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Host interface manager control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Host interface manager status [Read only]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Run mode control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Mode setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Pipe setup bank0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Pipe setup bank1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 ViewLive control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Viewlive status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Video timing parameter host inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Video timing control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Frame dimension parameter host inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Static frame rate control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Automatic Frame Rate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Exposure controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 White balance control parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Sensor setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Image stability [read only] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Flash control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Flash status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Scythe filter controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Jack filter controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Demosaic control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Colour matrix dampers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Peaking control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Pipe0 RGB to YUV matrix manual control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Pipe1 RGB To YUV matrix manual control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Pipe 0 gamma manual control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Pipe 1 Gamma manual control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Fade to black . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Output formatter control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 NoRA controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Optical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 VS6624 average sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Supply specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Typical current consumption - Sensor mode VGA 30 fps . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Typical current consumption - Sensor mode SXGA 15 fps. . . . . . . . . . . . . . . . . . . . . . . . . 90 External clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Serial interface voltage levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 5/106 List of tables Table 51. Table 52. Table 53. Table 54. Table 55. VL6624/VS6624 Parallel data interface timings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 LGA package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 VL6524 pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 6/106 VL6624/VS6624 List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. VL6624/VS6624 simplified block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 State machine at power -up and user mode transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Power up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Crop controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 ViewLive frame output format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Standard Y Cb Cr data order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Y Cb Cr data swapping options register 0x2294 bYuvSetup . . . . . . . . . . . . . . . . . . . . . . . 23 YUV 4:0:0 format encapsulated in ITU stream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 RGB and Bayer data formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Bayer 8 output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 ITU656 frame structure with even codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Mode 2 frame structure (VGA example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Mode 2 frame structure (VGA example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 HSYNC timing example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 VSYNC timing example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 QCLK options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Qualification clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Write message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Read message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Detailed overview of message format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Device addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 SDA data valid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 START and STOP conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Data acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Internal register index space. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Random location, single write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Current location, single read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 16-bit index, 8-bit data random index, single data read . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 16-bit index, 8-bit data multiple location write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Multiple location read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Multiple location read starting from a random location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Quantum efficiency (H8S1 - 3.0 µm pixel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Voltage level specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 SDA/SCL rise and fall times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Parallel data output video timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Package outline socket module VS6624Q0KP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Package outline socket module VS6624Q0KP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Package outline FPC module VS6624P0LP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Package outline FPC module VS6624P0LP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 VL6524QOMH outline drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 7/106 Overview VL6624/VS6624 1 Overview The VL6624/VS6624 is a SXGA resolution CMOS imaging device designed for low power systems. Manufactured using ST 0.18 µm CMOS Imaging process, it integrates a high-sensitivity pixel array, a digital image processor and camera control functions. The VS6624 is capable of streaming SXGA video up to 15 fps, with ITU-R BT.656-4 YUV 4:2:2 frame format. It supports both 1.8 V and 2.8 V interface and requires a 2.4 to 3.0 V analog power supply. Typically, the VS6624 can operate as a 2.8 V single supply camera or as a 1.8 V interface / 2.8 V supply camera. The integrated PLL allows for low frequency system clock, and flexibility for successful EMC integration. The VS6624 camera module uses ST’s 2nd generation “SmOP2” packaging technology: the sensor, lens and passives are assembled, tested and focused in a fully automated process, allowing high volume and low cost production. The device contains an embedded video processor and delivers fully color processed images at up to 15 frames per second SXGA and up to 30 fps VGA. The video data is output over an 8-bit parallel bus in RGB, YCbCr or bayer formats. The VL6624/VS6624 requires an analogue power supply of between 2.4 V to 3.0 V and a digital supply of either 1.8 V or 2.8 V (dependant on interface levels required). An input clock is required in the range 6.5 MHz to 54 MHz. The VL6624/VS6624 is controlled via an I²C interface. It also includes a wide range of image enhancement functions, designed to ensure high image quality, these include: ● ● ● ● ● ● ● ● ● ● ● Automatic exposure control Automatic white balance Lens shading compensation Defect correction algorithms Demosaic (Bayer to RGB conversion) Colour space conversion Sharpening Gamma correction Flicker cancellation NoRA Noise Reduction Algorithm Intelligent image scaling 8/106 VL6624/VS6624 Electrical interface 2 Electrical interface The VL6624/VS6624 FPC board to board connector has 20 electrical connections which are listed in Table 1. the package details of the flex connector are shown in Figure 39 andFigure 40. Table 1. Pad 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 VS6624 signal description of 20-pin flex connector Table 2: Pad name GND HSYNC VSYNC SCL CLK SDA VDD AVDD PCLK CE D5 D4 GND D3 D2 D1 D0 D6 D7 FSO I/O PWR OUT OUT IN IN I/O PWR PWR OUT IN OUT OUT PWR OUT OUT OUT OUT OUT OUT OUT Analogue ground Horizontal synchronization output Vertical synchronization output I²C clock input Clock input - 6.5MHz to 54MHz I²C data line Digital supply 1.8 V OR 2.8 V Analogue supply 2.4 V to 3.0 V Pixel qualification clock Chip enable signal active HIGH Data output D5 Data output D4 Digital ground Data output D3 Data output D2 Data output D1 Data output D0 Data output D6 Data output D7 Flash output Description The package details and electrical connections of the 24pin socket device are shown in Figure 37 and Figure 38. 9/106 System architecture VL6624/VS6624 3 System architecture The VS6624 consists of the following main blocks: ● ● ● ● ● ● SXGA-sized pixel array Video timing generator Video pipe Statistics gathering unit Clock generator Microprocessor A simplified block diagram is shown Figure 1. Figure 1. VL6624/VS6624 simplified block diagram Clock Generator I²C Interface I²C SDA SCL CLK CE VDD GND RESET VREG Microprocessor Video Timing Generator Statistics Gathering FSO AVDD GND SXGA Pixel Array Video Pipe VSYNC HSYNC PCLK D[0:7] 3.1 Operation A video timing generator controls a SXGA-sized pixel array to produce raw bayer images. The analogue pixel information is digitized and passed into the video pipe. The video pipe contains a number of different functions (explained in detail later). At the end of the video pipe data is output to the host system over an 8-bit parallel interface along with qualification signals. The whole system is controlled by an embedded microprocessor that is running firmware stored in an internal ROM. The external host communicates with this microprocessor over an I²C interface. The microprocessor does not handle the video data itself but is able to control all the functions within the video pipe. Real-time information about the video data is gathered by a statistics engine and is available to the microprocessor. The processor uses 10/106 VL6624/VS6624 System architecture this information to perform real-time image control tasks such as automatic exposure control. 3.2 Video pipe The main functions contained within the VL6624/VS6624 video processing pipe are as follows. Gain and offset This function is used to apply gain and offset to data coming from the sensor array. The microprocessor applies gain and offset values are controlled by the automatic exposure and white balance algorithms. Anti-vignette This function is used to compensate for the radial roll-off in intensity caused by the lens. By default the anti-vignette setting matches the lens used in this module and does not need to be adjusted. Crop This function allows the user to select an arbitrary Window Of Interest (WOI) from the SXGA-sized pixel array, note that the crop size should not be smaller that the output size. It is fully accessible to the user. Scaler The scaler module performs real time downscaling, in both the horizontal and vertical domain, of the bayer image data this is achieved by sample-rate conversion. The scaler is capable of downscaling from 1.0x to 10x the input number of pixels and lines, in steps of 1/16. Derating The VS6624 contains an internal derating module. This is designed to reduce the peak output data rate of the device by spreading the data over the whole frame period and allowing a subsequent reduction in output clock frequency. The maximum achievable derating factor is x100 for an equivalent scale factor of x10 downscale. As a general rule the allowable derating factor is equal to the square of the scaling factor. Note: The interline period is not guaranteed consistent for all derating ratios. This means the host capture system must be able to cope with use of the sync signals or embedded codes rather than relying on fixed line counts. Defect correction This function runs a defect correction filter over the data in order to remove defects from the final output. This function has been optimized to attain the minimum level of defects from the system and does not need to be adjusted. NoRA The noise reduction module implements an algorithm based on the human-visual system and adaptive pixel filtering that reduces perceived noise in an image whilst maintaining areas of high definition. Demosaic This module performs an interpolation on the Bayer data from the sensor array to produce a sRGB data. At this point an anti-alias filter is applied. Anti-Zipper The demosaic process produces an RGB frame with a noise signal at pixel frequency. To remove this artefact an anti-zipper filter is employed. Sharpening This module increases the high frequency content of the image in order to compensate for the low-pass filtering effects of the previous modules. Gamma is user adjustable. This module applies a programmable gain curve to the output data. It 11/106 System architecture VL6624/VS6624 YUV conversion This module performs color space conversion from RGB to YUV. It is used to control the contrast and color saturation of the output image as well as the fade to black feature. Dither This module is used to reduce the contouring effect seen in RGB images with truncated data. Output formatter This module controls the embedded codes which are inserted into the data stream to allow the host system to synchronize with the output data. It also controls the optional HSYNC and VSYNC output signals. 3.3 Microprocessor functions The microprocessor inside the VL6624/VS6624 performs the following tasks: Host communication handles the I²C communication with the host processor. Video pipe configuration configures the video pipe modules to produce the output required by the host. Automatic exposure control In normal operation the VL6624/VS6624 determines the appropriate exposure settings for a particular scene and outputs correctly exposed images. Flicker cancellation The 50/60Hz flicker frequency present in the lighting (due to fluorescent lighting) can be cancelled by the system. Automatic white balance The microprocessor adjusts the gains applied to the individual color channels in order to achieve a correctly color balanced image. Frame rate control VS6624 contains a firmware based programmable timing generator. This automatically designs internal video timings, PLL multipliers, clock dividers etc. to achieve a target frame rate with a given input clock frequency. Optionally an automatic frame rate controller can be enabled. This system examines the current exposure status, integration time and gain and adapts the frame rate based on that. This function is typically useful in low-light scenarios where reducing the frame rate extends the useful integration period. This reduces the need for the application of analog and digital gain and results in better quality images. Dark calibration The microprocessor uses information from special dark lines within the pixel array to apply an offset to the video data and ensure a consistent ‘black’ level. Active noise management The microprocessor is able to modify certain video pipe functions according to the current exposure settings determined by the automatic exposure controller. The main purpose of this is to improve the noise level in the system under low lighting conditions. Functions which ‘strength’ is reduced under low lighting conditions (e.g. sharpening) are controlled by ‘dampers’. Functions which ‘strength’ is increased under low lighting conditions are controlled by ‘promoters’. The fade to black operation is also controlled by the microprocessor 12/106 VL6624/VS6624 Operational modes 4 Operational modes VL6624/VS6624 has a number of operational modes. The power down mode is entered and exited by driving the hardware CE signal. Transitions between all other modes are initiated by I²C transactions from the host system or automatically after time-outs. Figure 2. State machine at power -up and user mode transitions Supplies turned-on & CE pin LOW Supplies Off Supplies turned-off Power-Down Supplies turned-off CE pin LOW Standby Uninitialised CE pin HIGH State Machine at power-up I2C controlled user mode transitions 1 It is possible to enter any of the user modes direct from the uninitialised state via an I2C command Stop Mode Snapshot Pause Mode Flashgun Note; Depending on the snapshot exit transition settings the device will revert to RUN or PAUSE state automatically after snapshot Run Mode Host initiated state changes System state changes Power Down/Up The power down state is entered from all other modes when CE is pulled low or the supplies are removed. During the power-down state (CE = logic 0) ● ● The internal digital supply of the VL6624/VS6624 is shut down by an internal switch mechanism. This method allows a very low power-down current value. The device input / outputs are fail-safe, and consequently can be considered high impedance. 13/106 Operational modes During the power-up sequence (CE = logic 1) ● ● ● VL6624/VS6624 The digital supplies must be on and stable. The internal digital supply of the VL6624/VS6624 is enabled by an internal switch mechanism. All internal registers are reset to default values by an internal power on reset cell. Figure 3. Power up sequence POWER DOWN standby uninitialised mode VDD (1.8V/2.8V) AVDD (2.8V) CE t1 t2 t3 CLK SDA SCL t5 Constraints: t1 >= 0ns t2 >= 0ns t3 >= 0ns t4 >= TBC ms t5 >= TBC ms low level command: enable clocks setup commands t4 STANDBY mode The VL6624/VS6624 enters STANDBY mode when the CE pin on the device is pulled HIGH. Power consumption is very low, most clocks inside the device are switched off. In this state I²C communication is possible when CLK is present and when the microprocessor is enabled. All registers are reset to their default values. The device I/O pins have a very highimpedance. Uninitialised = RAW The initialize mode is defined as supplies present, the CE signal is logic 1 and the microcontroller clock has been activated. During initialize mode the device firmware may be patched. This state is provided as an intermediary configuration state and is not central to regular operation of the device. The analogue video block is powered down, leading to a lower global consumption STOP mode This is a low power mode. The analogue section of the VL6624/VS6624 is switched off and all registers are accessed over the I²C interface. A run command received in this state automatically sets a transition through the Pause state to the run mode. Note: The device must be in Stop mode to adjust output size. The analogue video block is powered down, leading to a lower global consumption. 14/106 VL6624/VS6624 Operational modes Pause mode In this mode all VL6624/VS6624 clocks are running and all registers are accessible but no data is output from the device. The device is ready to start streaming but is halted. This mode is used to set up the required output format before outputting any data. The analogue video block is powered down, leading to a lower global consumption Note: The PowerManagement register can be adjusted in PAUSE mode but has no effect until the next RUN to PAUSE transition. 4.1 Streaming modes RUN mode This is the fully operational mode. In running mode the device outputs a continuous stream of images, according to the set image format parameters and frame rate control parameters. The image size is derived through downscaling of the SXGA image from the pixel array. ViewLive this feature allows different sizes, formats and reconstruction settings to be applied to alternate frames of data, while in run mode. Snapshot mode The device can be configured to output a single frame according to the size, format and reconstruction settings in the relevant pipe setup bank. In normal operation this frame will be output, once the exposure, white balance and dark-cal systems are stable. To reduce the latency to output, the user may manually override the stability flags. The snapshot mode command can be issued in either Run or Stop mode and the device will automatically return previous state after the snapshot is taken. The snapshot mode must not be entered into while viewlive is selected. FLASHGUN mode In flashgun mode, the array is configured for use with an external flashgun. A flash is triggered and a single frame of data is output and the device automatically switches to Pause Mode. VS6624 supports the following flashgun configurations: ● ● Torch Mode - user can manually switch on/off the FSO IO pin via a register setting. Independent of mode. Pulsed Mode - the flash output is synchronized to the image stream. There are two options available: – – – – Pulsed flash with snapshot. Device outputs a single frame synchronized to flash. Pulsed flash with viewfinder. Device outputs a flash pulse synchronized to a single frame in the image stream. In the pulsed mode there are two possible pulse configurations: Single pulse during the interframe period when all image lines are exposed. This is suitable for SCR and IGBT flash configurations. The falling edge of the pulse can be programmed to vary the width of the pulse. Single pulse over entire integration period of frame. This is suitable for LED flash configurations. – 15/106 Operational modes VL6624/VS6624 4.2 Mode transitions Transitions between operating modes are normally controlled by the host by writing to the Host interface manager control register. Some transitions can occur automatically after a time out. If there is no activity in the Pause state then an automatic transition to the Stop state occurs. This functionality is controlled by the Power management register, writing 0xFF disables the automatic transition to Stop. The users control allows a transition between Stop and Run, at the state level the system will transition through a Pause state. 16/106 VL6624/VS6624 Clock control 5 Clock control Input clock The VS6624 requires provision of an external reference clock. The external clock should be a DC coupled square wave. The clock signal may have been RC filtered. The clock input is fail-safe in power down mode. The VL6624/VS6624 contains an internal PLL allowing it to produce accurate frame rates from a wide range of input clock frequencies. The allowable input range is from 6.5MHz to 54MHz. The input clock frequency must be programmed in the registers. To program an input frequency of 6.5 MHz, the numerator can be set to 13 and the denominator to 2. The default input frequency is 12 MHz. The VS6624 may be configured as a master or slave device. In normal (master operation) the input clock can be a different frequency to the output PCLK and all output clock configuration is based on the internal PLL. In slave configuration, the input clock is the same frequency and phase as the output PCLK. i.e. parallel output data is synchronized to the input clock. 17/106 Frame control VL6624/VS6624 6 Frame control Sensor mode control The VS6624 device can operate it’s sensor array in three modes controlled by register SensorMode within Mode setup. ● ● ● SensorMode_SXGA - the full array is readout and the max frame rate achievable is 15fps SensorMode_VGA_analogue binning - the full array operates and a technique of analogue binning is used to output VGA at up to 30fps SensorMode_VGA_subsampled - the array is sub-sampled to output VGA at up to 30fps Image size An output frame consists of a number of active lines and a number of interframe lines. Each line consists of embedded line codes (if selected), active pixel data and interline blank data. Note that by default the interline blanking data is not qualified by the PCLK and therefore is not captured by the host system. The image size can be either the full output from the sensor, depending on sensor mode, or a scaled output, The output image size can be chosen from one of 7 pre-selected sizes or a manual image size can be input. Cropping module The VL6624/VS6624 contains a cropping module which can be used to define a window of interest within the full SXGA array size. The user can set a start location and the required output size. Figure 4 shows the example with pipe setup bank0. 18/106 VL6624/VS6624 Figure 4. Crop controls Sensor array horizontal size Frame control uwManualCropHorizontalStart uwManualCropVerticalStart Cropped ROI Sensor array vertical size uwManualCropVerticalSize uwManualCropHorizontalSize FFOV Zoom It is possible to zoom between the sensor size selected and the output size (if the output size selected equals the sensor mode size then no zoom can take place). The zoom step size in both the horizontal and vertical directions are selectable and zoom controlled with the commands zoom_in, zoom_out and zoom_stop. Pan It is possible to pan left, right, up and down when the output size selected is smaller than the sensor size selected. (if the output size selected equals the sensor mode size then no pan can take place). The pan step size in both the horizontal and vertical directions are selectable. Frame rate control The VL6624/VS6624 features an extremely flexible frame rate controller. Using registers uwDesiredFrameRate_Num, and uwDesiredFrameRate_Den any desired frame rate between 2 and 15 fps can be selected for the SXGA sensor mode and between 1 and 30fps for a VGA sensor mode. To program a required frame rate of 7.5 fps the numerator can be set to 15 and the denominator to 2. 19/106 Frame control VL6624/VS6624 Horizontal mirror and vertical flip The image data output from the VL6624/VS6624 can be mirrored horizontally or flipped vertically (or both). Video pipe setup The VS6624 has a single video pipe, the control of this pipe can be loaded from either of two possible setups Pipesetupbank0 and Pipesetupbank1; Pipe setup bank0 and Pipe setup bank1, control the operations shown below, ● image size ● zoom control ● pan control ● Crop control ● Image format (YUV 4:2:2, RGB565, etc....) ● Image controls (Contrast, Color saturation, Horizontal and vertical flip) Pipe 0 RGB to YUV matrix manual control and Pipe 1 RGB to YUV matrix manual control, allow different RGB to YUV matrixes to be used for each pipe setup, Pipe 0 gamma manual control and Pipe 1 Gamma manual control, allow different gamma settings to be used for each pipe setup. Context switching In normal operation, it is possible to control which pipe setup bank is used and to switch between banks without the need to stop streaming, the change will occur at the next frame boundary after the change to the register has been made. For example this function allows the VL6624/VS6624 to stream an output targeting a display (e.g. QQVGA RGB 444) then switch to capture an image (e.g. SXGA YUV 4:2:2) with no need to stop streaming or enter any other operating mode. It is important to note the output size selected for both pipe setups must be appropriate to the sensor mode used, i.e. to configure PipeSetupBank0 to QQVGA and PipeSetupBank1 to SXGA the sensor mode must be set to SXGA. The register Mode setup allows selection of the pipe setup bank, by default the Pipe setup bank 0 is used. 20/106 VL6624/VS6624 Frame control ViewLive Operation ViewLive is an option which allows a different pipe setup bank to be applied to alternate frames of the output data. The controls for VIewLive function are found in the register bank where the fEnable register allows the host to enable or disable the function and the binitialPipeSetupBank register selects which pipe setup bank is output first. When ViewLive is enabled the output data switches between Pipe setup bank0 and Pipe setup bank1 on each alternate frame. Figure 5. ViewLive frame output format Frame output Active Video Pipe setup bank0 Interline Blanking Interframe Blanking Active Video Pipe setup bank1 Interline Blanking Interframe Blanking 21/106 Output data formats VL6624/VS6624 7 Output data formats The VL6624/VS6624 supports the following data formats: ● ● ● ● ● ● ● YUV4:2:2 YUV4:0:0 RGB565 RGB444 (encapsulated as 565) RGB444 (zero padded) Bayer 10-bit Bayer 8-bit The required data format is selected using the bdataFomat control found in the pipe setup bank registers. The various options available for each format are controlled using the bRgbsetup and bYuvSetup registers found in the Output formatter control registers. Line / Frame Blanking Data The values which are output during line and frame blanking are an alternating pattern of 0x10 and 0x80 by default. These values may be changed by writing to the BlankData_MSB and BlankData_LSB registers in the Output formatter control bank. YUV 4:2:2 data format YUV 422 data format requires 4 bytes of data to represent 2 adjacent pixels. ITU601-656 defines the order of the Y, Cb and Cr components as shown in Figure 6. Figure 6. Standard Y Cb Cr data order HSYNC SIGNAL EAV Code START OF DIGITAL ACTIVE LINE 8 1 F 0 0 X Cb 00 F00Y Y Cr Y Cb Y Cr Y Cb Y Cr Y 4-data packet The VL6624/VS6624 bYuvSetup register can be programmed to change the order of the components as follows: 22/106 VL6624/VS6624 Figure 7. Output data formats Y Cb Cr data swapping options register 0x2294 bYuvSetup Components order in 4-byte data packet 1st 2nd 3rd Y Cb Y Cr Cb Y Cr Y Y Cr Y Cb Bit [0] Cb first Bit [1] Y first 4th Cr Y Cb Y 1 DEFAULT 0 1 0 1 1 0 0 YUV 4:0:0 The ITU protocol allows the encapsulation of various data formats over the link. The following data formats are also proposed encapsulated in ITU601-656 protocol: ● YUV 4:0:0 - luminance data channel This is done as described in Figure 8. In this output mode the output data per pixel is a single byte. Therefore the output PCLK and data rate is halved. It is possible to reverse the overall bit order of the component through a register programming. Note: False synchronization codes are avoided in the LSByte by adding or subtracting a value of one, dependent on detection of a 0 code or 255 code respectively. Figure 8. YUV 4:0:0 format encapsulated in ITU stream START OF DIGITAL ACTIVE LINE EAV Code F 0 0XDDDDDDDDDD F 0 0 Y 0 1 2 3 4 5 6 7 8 9 .................. Pixel2 Pixel3 Pixel4 Pixel5 Pixel6 Pixel7 Pixel8 Pixel9 Pixel1 YUV4:0:0 F00X F00Y Pixel10 .................. where: Pixeln = Yn[7:0] See Output formatter control for user interface control of output data formats. 23/106 Output data formats VL6624/VS6624 RGB and Bayer 10 bit data formats The VL6624/VS6624 can output data in the following formats: ● ● ● ● RGB565 RGB444 (encapsulated as RGB565) RGB444 (zero padded) Bayer 10-bit Note: Pixels in Bayer 10-bit data output are defect corrected, correctly exposed and white balanced. Any or all of these functions can be disabled. In each of these modes 2 bytes of data are required for each output pixel. The encapsulation of the data is shown in Table 9. Figure 9. RGB and Bayer data formats (1) RGB565 data packing Bit 7 6 5 4 3 2 1 0 Bit 7 6 5 4 3 B3 2 B2 1 B1 0 B0 R4 R3 R2 R1 R0 G5 G4 G3 second byte (2) RGB 444 packed as RGB565 Bit 7 6 5 4 3 1 2 1 0 Bit G2 G1 G0 B4 first byte 7 G0 6 1 5 0 4 B3 3 B2 2 B1 1 B0 0 1 R 3 R2 R1 R0 G3 G2 G1 second byte (3) RGB 444 zero padded Bit 7 0 6 0 5 0 4 0 3 2 1 0 Bit 7 6 5 first byte 4 3 2 B2 1 B1 0 B0 R3 R2 R1 R 0 G3 G2 G1 G0 B3 first byte second byte (4) Bayer 10-bit Bit 7 1 6 0 5 1 4 0 3 1 2 0 1 b9 0 b8 Bit 7 b7 6 b6 5 b5 4 b4 3 b3 2 b2 1 b1 0 b0 second byte first byte 24/106 VL6624/VS6624 Output data formats Manipulation of RGB data It is possible to modify the encapsulation of the RGB data in a number of ways: ● ● ● swap the location of the RED and BLUE data reverse the bit order of the individual color channel data reverse the order of the data bytes themselves Dithering An optional dithering function can be enabled for each RGB output mode to reduce the appearance of contours produced by RGB data truncation. This is enabled through the DitherControl register. Bayer 8-bit The ITU protocol allows the encapsulation of various data formats over the link. The following data formats are also proposed encapsulated in ITU601-656 protocol: ● ● ● RAW 8-bit bayer Truncated from 10-bit DPCM encoded from 10-bit This is done as described in Figure 10. In this output mode the output data per pixel is a single byte. Therefore the output PCLK and data rate is halved. It is possible to reverse the overall bit order of the individual bayer pixels through a register programming. Note: False synchronization codes are avoided in the LSByte by adding or subtracting a value of one, dependent on detection of a 0 code or 255 code respectively. Figure 10. Bayer 8 output START OF DIGITAL ACTIVE LINE EAV Code F 0 0XDDDDDDDDDDDD F00Y012301230123 Pixel11 where: Pixel1 Pixel3 Pixel5 Pixel7 8-bit Bayer F00XL L L LL L L L L LL L F 0 0 Y S S S SS S S S S SS S B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10B11 LSBn = Bayer n[7:0] Pixel9 25/106 Data synchronization methods VL6624/VS6624 8 Data synchronization methods External capture systems can synchronize with the data output from VL6624/VS6624 in one of two ways: 1. 2. Synchronization codes are embedded in the output data Via the use of two additional synchronization signals: VSYNC and HSYNC Both methods of synchronization can be programmed to meet the needs of the host system. Embedded codes The embedded code sequence can be inserted into the output data stream to enable the external host system to synchronize with the output frames. The code consists of a 4-byte sequence starting with 0xFF, 0x00, 0x00. The final byte in the sequence depends on the mode selected. Two types of embedded codes are supported by the VL6624/VS6624: Mode 1 (ITU656) and Mode 2. The bSyncCodeSetup register is used to select whether codes are inserted or not and to select the type of code to insert. When embedded codes are selected each line of data output contains 8 additional clocks: 4 before the active video data and 4 after it. Prevention of false synchronization codes The VL6624/VS6624 is able to prevent the output of 0xFF and/or 0x00 data from being misinterpreted by a host system as the start of synchronization data. This function is controlled the bCodeCheckEnable register. Mode 1 (ITU656 compatible) The structure of an image frame with ITU656 codes is shown in Figure 11. 26/106 VL6624/VS6624 Figure 11. ITU656 frame structure with even codes Line 1 Data synchronization methods SAV 80 Frame of image data EAV 9D Line 480 SAV AB Frame blanking period EAV B6 The synchronization codes for odd and even frames are listed in Table 3 and Table 4. By default all frames output from the VL6624/VS6624 are EVEN. It is possible to set all frames to be ODD or to alternate between ODD and EVEN using the SyncCodeSetup register in theOutput formatter control register bank. Table 3. ITU656 embedded synchronization code definition (even frames) Name SAV EAV SAV (blanking) EAV (blanking) Description Line start - active Line end - active Line start - blanking Line end - blanking 4-byte sequence FF 00 00 80 FF 00 00 9D FF 00 00 AB FF 00 00 B6 Table 4. ITU656 embedded synchronization code definition (odd frames) Name Description Line start - active Line end - active Line start - blanking Line end - blanking 4-byte sequence FF 00 00 C7 FF 00 00 DA FF 00 00 EC FF 00 00 F1 SAV EAV SAV (blanking) EAV (blanking) Line blanking period 27/106 Data synchronization methods VL6624/VS6624 Mode 2 The structure of a mode 2 image frame is shown Figure 12. Figure 12. Mode 2 frame structure (VGA example) FS Line 1 LS Frame of image data LE Line 480 Frame blanking period FE For mode 2, the synchronization codes are as listed in Table 5. Table 5. Mode 2 - embedded synchronization code definition Name LS LE FS FE Line start Line end Frame Start Frame End Description 4-byte sequence FF 00 00 00 FF 00 00 01 FF 00 00 02 FF 00 00 03 28/106 Line blanking period VL6624/VS6624 Data synchronization methods Mode 2 Logical DMA channels The purpose of logical channels is to separate different data flows which are interleaved in the data stream, in the case of the VS6624 this allows the identification of the pipe setup bank used for an image frame. The DMA channel identifier number is directly encoded in the 4-byte mode2 embedded sync codes. The receiver can then monitor the DMA channel identifier and de-multiplex the interleaved video streams to their appropriate DMA channel. The bChannelID register can have the value 0 to 6. The DMA channel identifier must be fully programmable to allow the host to configure which DMA channels the different video data stream use. ● Logical channel control The channel identifier is a part of Mode2 synchronization code, upper four bits of last byte of synchronization code. Figure 13. illustrates the synchronization code with logical channel identifiers. Figure 13. Mode 2 frame structure (VGA example) 32-bit embedded mode 2 sync code F F 0 0 0 0 DC LC DMA Channel Number Valid channels = 0 to 6 Line code 0x0 = Line Start 0x1 = Line End 0x2 = Frame Start 0x3 = Frame End VSYNC and HSYNC The VL6624/VS6624 can provide two programmable hardware synchronization signals: VSYNC and HSYNC. The position of these signals within the output frame can be programmed by the user or an automatic setting can be used where the signals track the active video portion of the output frame regardless of its size. Horizontal synchronization signal (HSYNC) The HSYNC signal is controlled by the bHSyncSetup register. The following options are available: ● ● ● ● enable/disable select polarity all lines or active lines only manual or automatic 29/106 Data synchronization methods VL6624/VS6624 In automatic mode the HSYNC signal envelops all the active video data on every line in the output frame regardless of the programmed image size. Line codes (if selected) fall outside the HSYNC envelope as shown in Figure 14. Figure 14. HSYNC timing example hsync=0 hsync=1 BLANKING DATA ACTIVE VIDEO DATA EAV Code FF 00 00 XY 80 10 80 10 80 10 SAV Code 80 10 FF 00 00 XY D0 D1 D2 D3 D0 D1 D2 D3 EAV Code D2 D3 FF 00 00 XY If manual mode is selected then the pixel positions for HSYNC rising edge and falling edge are programmable. The pixel position for the rising edge of HSYNC is programmed in the bHSyncRising registers. The pixel position for the falling edge of HSYNC is programmed in the bHSyncFalling registers. Vertical synchronization (VSYNC) The VSYNC signal is controlled by the bSyncSetup register. The following options are available: ● ● ● enable/disable select polarity manual or automatic In automatic mode the VSYNC signal envelops all the active video lines in the output frame regardless of the programmed image size as shown in Figure 15. 30/106 VL6624/VS6624 Figure 15. VSYNC timing example Data synchronization methods BLANKING V=0 V=1 ACTIVE VIDEO vsync BLANKING V=0 V=1 ACTIVE VIDEO If manual mode is selected then the line number for VSYNC rising edge and falling edge is programmable. The rising edge of VSYNC is programmed in the bVsyncRisingLine registers, the pixel position for VSYNC rising edge is programmed in the bVsyncRisingPixel registers. Similarly the line count for the falling edge position is specified in the bVsyncFallingLine registers, and the pixel count is specified in the bVsyncFallingPixel registers. Pixel clock (PCLK) The PCLK signal is controlled by the Output formatter control register. The following options are available: ● ● ● ● ● enable/disable select polarity select starting phase qualify/don’t qualify embedded synchronization codes enable/disable during horizontal blanking 31/106 Data synchronization methods Figure 16. QCLK options data Negative edge Positive edge PCLK Negative edge Positive edge None-active level - Low None-active level - High D0 D1 D2 VL6624/VS6624 The YUV, RGB and bayer timings are represented on Figure 17, with the associated qualifying pclk clock. The output clock rate is effectively halved for the bayer 8-bit and YUV4:0:0 modes where only one byte of output data is required per pixel. Figure 17. Qualification clock 16-bit data output formats - 2 bytes per pixel Data[7:0] YCbCr Cbn,n+1 Yn Crn,n+1 Yn+1 Cbn+2,n+3 PCLK Data[7:0] Pix0_lsb Pix0_msb Pix1_lsb Pix1_msb Pix2_lsb RGB565 RGB444 PCLK Data[7:0] Pix0_lsb Pix0_msb Pix1_lsb Pix1_msb Pix2_lsb Bayer 10-Bit PCLK 8-bit data output formats- 1 byte per pixel Bayer 8-Bit Data[7:0] Pix0 Pix1 Pix2 PCLK Data[7:0] Pix0 Pix1 Pix2 YUV 4:0:0 PCLK 32/106 VL6624/VS6624 Data synchronization methods Master / Slave operation of PLCK In normal operation VS6624 acts as a master. PCLK is independent of the input clock frequency and does not have a determined phase relation to the input clock. In SLAVE operation the input clock frequency is the same as the output clock frequency and the output data is guaranteed with a certain phase relationship to the input clock. Internally, the VS6624 uses clocks generated from the internal PLL, but a retiming stage is used to resync the output to the input clock. In this output mode, derating is not possible. 33/106 Getting started VL6624/VS6624 9 Getting started Initial power up Before any communication is possible with the VL6624/VS6624 the following steps must take place: 1. 2. 3. 4. Apply VDD (1.8V or 2.8V) Apply AVDD (2.8V) Apply an external CLOCK (6.5MHz to 54MHz) Assert CE line HIGH These steps can all take place simultaneously. After these steps are complete a delay of 200 µs is required before any I²C communication can take place, see Figure 3: Power up sequence. Minimum startup command sequence 1. Enable the microprocessor - before any commands can be sent to the VL6624/VS6624, the internal microprocessor must be enabled by writing the value 0x02 to the MicroEnable register 0xC003 found in the Low level control registers Section. Enable the digital I/O - after power up the digital I/O of the VL6624/VS6624 is in a highimpedance state (‘tri-state’). The I/O are enabled by writing the value 0x01 to the DIO_Enable register 0xC044 found in the Low level control registers Section. The user can then program the system clock frequency and setup the required output format before placing the VL6624/VS6624 in RUN mode by writing 0x02 to the Host interface manager control register 0x0180. 2. 3. The above three commands represent the absolute minimum required to get video data output. The default configuration results in an output of SXGA, 15 fps, YUV data format with ITU embedded codes requiring a external clock frequency of 12MHz. In practice the user is likely to require to write some additional setup information prior to receive the required data output. 34/106 VL6624/VS6624 Host communication - I²C control interface 10 Host communication - I²C control interface The interface used on the VL6624/VS6624 is a subset of the I²C standard. Higher level protocol adaptations have been made to allow for greater addressing flexibility. This extended interface is known as the V2W interface. 10.1 Protocol A message contains two or more bytes of data preceded by a START (S) condition and followed by either a STOP (P) or a repeated START (Sr) condition followed by another message. STOP and START conditions can only be generated by a V2W master. After every byte transferred the receiving device must output an acknowledge bit which tells the transmitter if the data byte has been successfully received or not. The first byte of the message is called the device address byte and contains the 7-bit address of the V2W slave to be addressed plus a read/write bit which defines the direction of the data flow between the master and the slave. The meaning of the data bytes that follow device address changes depending whether the master is writing to or reading from the slave. Figure 18. Write message S DEV ADDR R/W A DATA A 2 Index Bytes DATA A DATA N Data Byte A/A P ‘0’ (Write) From Master to Slave From Slave to Master For the master writing to the slave the device address byte is followed by 2 bytes which specify the 16-bit internal location (index) for the data write. The next byte of data contains the value to be written to that register index. If multiple data bytes are written then the internal register index is automatically incremented after each byte of data transferred. The master can send data bytes continuously to the slave until the slave fails to provide an acknowledge or the master terminates the write communication with a STOP condition or sends a repeated START (Sr). Figure 19. Read message S DEV ADDR R/W A DATA A DATA A P ‘1’ (Read) 1 or more Data Byte From Master to Slave From Slave to Master For the master reading from the slave the device address is followed by the contents of last register index that the previous read or write message accessed. If multiple data bytes are read then the internal register index is automatically incremented after each byte of data 35/106 Host communication - I²C control interface VL6624/VS6624 read. A read message is terminated by the bus master generating a negative acknowledge after reading a final byte of data. A message can only be terminated by the bus master, either by issuing a stop condition, a repeated start condition or by a negative acknowledge after reading a complete byte during a read operation. 10.2 Detailed overview of the message format 1 2 3 4 5 6 Figure 20. Detailed overview of message format S (Sr) 7-bit Device Address R/W A 8-bit Data A (A) P (Sr) P SDA MSB SCL S or Sr LSB MSB LSB Sr Sr or P 1 2 7 8 9 1 2 7 8 9 START or repeated START condition Device Address R/W Bit 0 - Write 1 - Read ACK signal from slave Data byte from transmitter R/W=0 - Master R/W=1 - Slave ACK signal from receiver STOP or repeated Start condition The V2W generic message format consists of the following sequence 36/106 VL6624/VS6624 1. 2. Host communication - I²C control interface Master generates a START condition to signal the start of new message. Master outputs, MS bit first, a 7-bit device address of the slave the master is trying to communicate with followed by a R/W bit. a) b) R/W = 0 then the master (transmitter) is writing to the slave (receiver). R/W = 1 the master (receiver) is reading from the slave (transmitter). 3. 4. The addressed slave acknowledges the device address. Data transmitted on the bus a) b) When a write is performed then master outputs 8-bits of data on SDA (MS Bit first). When a read is performed then slave outputs 8-bits of data on SDA (MS Bit First). When a write is performed slave acknowledges data. When a read is performed master acknowledges data. 5. Data receive acknowledge a) b) Repeat 4 and 5 until all the required data has been written or read. Minimum number of data bytes for a read =1 (Shortest Message length is 2-bytes). The master outputs a negative acknowledge for the data when reading the last byte of data. This causes the slave to stop the output of data and allows the master to generate a STOP condition. 6. Master generates a STOP condition or a repeated START. Figure 21. Device addresses Sensor address 0 0 1 0 0 0 0 R/W Sensor write address 20H 0 0 1 0 0 0 0 0 Sensor read address 21H 0 0 1 0 0 0 0 1 37/106 Host communication - I²C control interface VL6624/VS6624 10.3 Data valid The data on SDA is stable during the high period of SCL. The state of SDA is changed during the low phase of SCL. The only exceptions to this are the start (S) and stop (P) conditions as defined below. (See I²C slave interface for full timing specification). Figure 22. SDA data valid SDA SCL Data line stable Data valid Data change Data line stable Data valid 10.4 Start (S) and Stop (P) conditions A START (S) condition defines the start of a V2W message. It consists of a high to low transition on SDA while SCL is high. A STOP (P) condition defines the end of a V2W message. It consists of a low to high transition on SDA while SCL is high. After STOP condition the bus is considered free for use by other devices. If a repeated START (Sr) is used instead of a stop then the bus stays busy. A START (S) and a repeated START (Sr) are considered to be functionally equivalent. Figure 23. START and STOP conditions SDA SCL S START condition P STOP condition 38/106 VL6624/VS6624 Host communication - I²C control interface 10.5 Acknowledge After every byte transferred the receiver must output an acknowledge bit. To acknowledge the data byte receiver pulls SDA during the 9th SCL clock cycle generated by the master. If SDA is not pulled low then the transmitter stops the output of data and releases control of the bus back to the master so that it can either generate a STOP or a repeated START condition. Figure 24. Data acknowledge SDA data output by transmitter Negative Acknowledge (A) SDA data output by receiver Acknowledge (A) SCL clock from master S START Condition 1 2 8 9 Clock Pulse for Acknowledge 10.6 Index space Communication using the serial bus centres around a number of registers internal to the either the sensor or the co-processor. These registers store sensor status, set-up, exposure and system information. Most of the registers are read/write allowing the receiving equipment to change their contents. Others (such as the chip id) are read only. The internal register locations are organized in a 64k by 8-bit wide space. This space includes “real” registers, SRAM, ROM and/or micro controller values. 39/106 Host communication - I²C control interface Figure 25. Internal register index space 8 bits 65535 65534 65533 65532 VL6624/VS6624 130 16-bit Index / 8-bit Data Format 64k by 8-bit wide index space (Valid Addresses 0-65535) 129 128 127 126 125 4 3 2 1 0 10.7 Types of messages This section gives guidelines on the basic operations to read data from and write data to VL6624/VS6624. The serial interface supports variable length messages. A message contains no data bytes or one data byte or many data bytes. This data can be written to or read from common or different locations within the sensor. The range of instructions available are detailed below. ● ● ● Single location, single byte data read or write. Write no data byte. Only sets the index for a subsequent read message. Multiple location, multiple data read or write for fast information transfers. Any messages formats other than those specified in the following section should be considered illegal. 40/106 VL6624/VS6624 Host communication - I²C control interface 10.8 Random location, single data write For the master writing to the slave the R/W bit is set to zero. The register index value written is preserved and is used by a subsequent read. The write message is terminated with a stop condition from the master. Figure 26. Random location, single write 16-bit Index, 8-bit Data, Random Location, Single Data Write Previous Index Value, K S DEV ADDR R/W A DATA A DATA A DATA Index M A/A P ‘0’ (Write) INDEX[15:8] INDEX[7:0] DATA[7:0] Index[15:0] value, M From Master to Slave From Slave to Master DATA[7:0] S = START Condition Sr = repeated START P = STOP Condition A = Acknowledge A = Negative Acknowledge 10.9 Current location, single data read For the master reading from the slave the R/W bit is set to one. The register index of the data returned is that accessed by the previous read or write message. The first data byte returned by a read message is the contents of the internal index value and NOT the index value. This was the case in older V2W implementations. Note that the read message is terminated with a negative acknowledge (A) from the master: it is not guaranteed that the master will be able to issue a stop condition at any other time during a read message. This is because if the data sent by the slave is all zeros, the SDA line cannot rise, which is part of the stop condition. Figure 27. Current location, single read 16-bit index, 8-bit data current location, single data read Previous Index Value, K S DEV ADDR R/W A DATA A P ‘1’ (Read) DATA[7:0] DATA[7:0] From Master to Slave From Slave to Master S = START Condition Sr = repeated START P = STOP Condition A = Acknowledge A = Negative Acknowledge 41/106 Host communication - I²C control interface VL6624/VS6624 10.10 Random location, single data read When a location is to be read, but the value of the stored index is not known, a write message with no data byte must be written first, specifying the index. The read message then completes the message sequence. To avoid relinquishing the serial to bus to another master a repeated start condition is asserted between the write and read messages. As mentioned in the previous example, the read message is terminated with a negative acknowledge (A) from the master. Figure 28. 16-bit index, 8-bit data random index, single data read Previous Index Value, K No Data Write Index M Data Read S DEV ADDR R/W A DATA A DATA A Sr DEV ADDR R/W A DATA A P ‘0’ (Write) INDEX[15:8] INDEX[7:0] ‘1’ (Read) DATA[7:0] DATA[7:0] INDEX[15:0] value, M From Master to Slave From Slave to Master S = START Condition Sr = repeated START P = STOP Condition A = Acknowledge A = Negative Acknowledge 10.11 Multiple location write For messages with more than 1 data byte the internal register index is automatically incremented for each byte of data output, making it possible to write data bytes to consecutive adjacent internal registers without having to send explicit indexes prior to sending each data byte. Figure 29. 16-bit index, 8-bit data multiple location write Previous Index Value, K S DEV ADDR R/W A DATA A DATA A Index M DATA A Index (M + N - 1) DATA A/A P ‘0’ (Write) INDEX[15:8] INDEX[7:0] DATA[7:0] DATA[7:0] DATA[7:0] DATA[7:0] N Bytes of Data INDEX[15:0] value, M From Master to Slave From Slave to Master S = START Condition Sr = repeated START P = STOP Condition A = Acknowledge A = Negative Acknowledge 42/106 VL6624/VS6624 Host communication - I²C control interface 10.12 Multiple location read stating from the current location In the same manner to multiple location writes, multiple locations can be read with a single read message. Figure 30. Multiple location read 16-bit Index, 8-bit data multiple location read Previous Index Value, K S DEV ADDR R/W A DATA A Index K+1 DATA A DATA Index (K + N - 1) A P ‘1’ (Read) DATA[7:0] DATA[7:0] DATA[7:0] DATA[7:0] N Bytes of Data DATA[7:0] DATA[7:0] From Master to Slave From Slave to Master S = START Condition Sr = repeated START P = STOP Condition A = Acknowledge A = Negative Acknowledge 43/106 44/106 Index M Data Read Index (M + N - 1) No Data Write DATA A DATA A Sr DEV ADDR R/W A DATA A DATA A P 10.13 16-bit Index, 8-bit Data Random Index, Multiple Data Read Previous Index Value, K S DEV ADDR R/W A ‘0’ (Write) INDEX[15:8] INDEX[15:0] value, M DATA[7:0] INDEX[7:0] DATA[7:0] ‘1’ (Read) DATA[7:0] DATA[7:0] N Bytes of Data A = Acknowledge A = Negative Acknowledge Host communication - I²C control interface From Master to Slave S = START Condition Sr = repeated START P = STOP Condition Multiple location read starting from a random location Figure 31. Multiple location read starting from a random location From Slave to Master VL6624/VS6624 VL6624/VS6624 Register map 11 Register map The VL6624/VS6624 I²C write address is 0x20. To read or write to registers other than those in Low level control registers section the device must be switched on, this is done by writing 0x02 to 0xC003. Information on initial power up for the device can be found in the Section 9: Getting started. All I²C locations contain an 8-bit byte. However, certain parameters require 16 bits to represent them and are therefore stored in more than 1 location. Note: For all 16 bit parameters the MSB register must be written before the LSB register. The data stored in each location can be interpreted in different ways as shown below. Register contents represent different data types as described in Table 6. Table 6. Data type Description Single field register 8 bit parameter Multiple field registers - 16 bit parameter Bit 0 of register must be set/cleared Coded register - function depends on value written Float Value Data Type BYTE UINT_16 FLAG_e CODED FLOAT Float number format Float 900 is used in ST co-processors to represent floating point numbers in 2 bytes of data. It conforms to the following structure: Bit[15] = Sign bit (1 represents negative) Bit[14:9] = 6 bits of exponent, biased at decimal 31 Bit[8:0] = 9 bits of mantissa To convert a floating point number to Float 900, use the following procedure: ● ● ● ● represent the number as a binary floating point number. Normalize the mantissa and calculate the exponent to give a binary scientific representation of 1.xxxxxxxxx * 2^y. The x symbols should represent 9 binary digits of the mantissa, round or pad with zeros to achieve 9 digits in total. Remove the leading 1 from the mantissa as it is redundant. To calculate the y value Bias the exponent by adding to 31 decimal then converting to binary. The data can then be placed in the structure above. 45/106 Register map VL6624/VS6624 Example Convert -0.41 to Float 900 Convert the fraction into binary by successive multiplication by 2 and removal of integer component 0.41 * 2 = 0.82 0.82 * 2 = 1.64 0.64 * 2 = 1.28 0.28 * 2 = 0.56 0.56 * 2 = 1.12 0.12 * 2 = 0.24 0.24 * 2 = 0.48 0.48 * 2 = 0.96 0.96 * 2 = 1.92 0.92 * 2 = 1.84 0.84 * 2 = 1.68 0.68 * 2 = 1.36 0.36 * 2 = 0.72 0 1 1 0 1 0 0 0 1 1 1 1 0 This gives us -0.0110100011110. We then normalize by moving the decimal point to give - 1.10100011110 * 2^-2. The mantissa is rounded and the leading zero removed to give 101001000. We add the exponent to the bias of 31 that gives us 29 or 11101. A leading zero is added to give 6 bits 011101. The sign bit is set at 1 as the number is negative. This gives us 1011 1011 0100 1000 as our Float 900 representation or BB48 in hex. To convert the encoded representation back to a decimal floating point, we can use the following formula. Real is = (-1)^sign * ((512+mantissae)>> 9) * 2^(exp-31) Thus to convert BB48 back to decimal, the following procedure is followed: Note that >>9 right shift is equal to division by 2^9. Sign = 1 Exponent = 11101 (29 decimal) Mantissa = 101001000 (328 decimal) This gives us: real = (-1)^1 * ((512+328)/2^9) * 2^(29-31) real = -1 * (840/512) * 2^(-2) real = -1 * 1.640625 * 0.25 real = -0.41015625 When compared to the original -0.41, we see that some rounding errors have been introduced. 46/106 VL6624/VS6624 Register map Low level control registers Table 7. Index MicroEnable Default value 0xC003 Purpose Type Possible values DIO_Enable Default value 0xC044 Purpose Type Possible values 1. Can be controlled in all stable states. Low-level control registers LowLevelControlRegisters(1) 0x1c Used to power up the device CODED initial state after low to high transition of CE pin Power enable for all MCU Clock- start device 0x00 Enables the digital I/O of the device CODED IO pins in a high impedance state ‘Tri-state’ IO pins enabled Note: The default values for the above registers are true when the device is powered on, Ext. Clk input is present and the CE pin is high. All other registers can be read when the MicroEnable register is set to 0x02. 47/106 Register map VL6624/VS6624 User interface map Device parameters [read only] Table 8. Index Device parameters [read only] DeviceParameters [read only](1) uwDeviceId 0x0001 (MSByte) 0x0002 (LSByte) Purpose Type device id e.g. 624 UINT bFirmwareVsnMajor 0x0004 Type 0x0006 Type bPatchVsnMajor 0x0008 Type bPatchVsnMinor 0x000a Type 1. Can be accessed in all stable state. BYTE bFirmwareVsnMinor BYTE BYTE BYTE Host interface manager control Table 9. Index bUserCommand Default value Purpose Type 0x0180 UNINITIALISED User level control of operating states CODED UNINITIALISED - powerup default BOOT - the boot command will identify the sensor & setup low level handlers RUN - stream video PAUSE- stop video streaming STOP - low power mode, analogue powered down SNAPSHOT- grab one frame at correct exposure without flashgun FLASHGUN - grab one frame at correct exposure for flashgun Host interface manager control HostInterfaceManagerControl(1) Possible values 1. Can be controlled in all stable states 48/106 VL6624/VS6624 Register map Host interface manager status Table 10. Index bState Default Value Purpose Type _RAW The current state of the mode manager. CODED _RAW - default powerup state. WAITING_FOR_BOOT - Waiting for ModeManager to signal BOOT event. PAUSED - Booted, the input pipe is idle. WAITING_FOR_RUN - Waiting for ModeManager to complete RUN setup. RUNNING - The pipe is active. WAITING_FOR_PAUSE - The host has issued a PAUSE command. The HostInterfaceManager is waiting for the ModeManager to signal PAUSE processing complete. FLASHGUN - Grabbing a single frame. STOPPED - Low power Host interface manager status [Read only] HostInterfaceManagerStatus [Read only](1) 0x0202 Possible values 1. Can be accessed in all stable states Run mode control Table 11. Index fMeteringOn Default Value: 0x0280 Purpose Type Possible values 1. Can be controlled in all stable states Run mode control RunModeControl(1) TRUE If metering is off the Auto Exposure (AE) and Auto White Balance (AWB) tasks are disabled Flag_e FALSE TRUE 49/106 Register map VL6624/VS6624 Mode setup Table 12. Index Mode setup ModeSetup bNonViewLive_ActivePipeSetupBank (Can be controlled in all stable states) Default Value: PipeSetupbank_0 Select the active bank for non view live mode CODED PipeSetupbank_0 PipeSetupbank_1 0x0302 Purpose Type Possible values SensorMode (Must be configured in STOP mode) Default value Purpose 0x0308 Type Possible values SensorMode_SXGA Select the different sensor mode CODED SensorMode_SXGA SensorMode_VGA SensorMode_VGANormal Pipe setup bank0 Table 13. Index bImageSize0 # Default value Purpose Type 0x0380 ImageSize_SXGA required output dimension. CODED ImageSize_SXGA ImageSize_VGA ImageSize_CIF ImageSize_QVGA ImageSize_QCIF ImageSize_QQVGA ImageSize_QQCIF ImageSize_Manual - to use ManualSubSample and ManualCrop controls select Manual mode. Pipe setup bank0 PipeSetupBank0(1) Possible values uwManualHSize0 # 0x0383(MSB) 0x0384(LSB) Default value Purpose Type 0x00 if ImageSize_Manual selected, input required manual H size UINT16 50/106 VL6624/VS6624 Table 13. Index uwManualVSize0 # 0x0387(MSB) 0x0388(LSB) Default value Purpose Type 0x00 Register map Pipe setup bank0 PipeSetupBank0(1) if ImageSize_Manual selected, input required manual V size UINT16 uwZoomStepHSize0 0x038b(MSB) 0x038c(LSB) Default value Purpose Type 0x01 Set the zoom H step UINT16 uwZoomStepVSize0 0x038f(MSB) 0x0390(LSB) Default value Purpose Type bZoomControl0 Default value Purpose 0x0392 Type Possible values ZoomStop control zoom in, zoom out and zoom stop C ZoomStop ZoomStart_In ZoomStart_Out 0x01 Set the zoom V step UINT16 uwPanSteplHSize0 0x0395(MSB) 0x0396(LSB) Default value Purpose Type uwPanStepVSize0 0x0399(MSB) 0x039a(LSB) Default value Purpose Type 0x00 Set the PanV step UINT16 0x00 Set the pan H step UINT16 51/106 Register map Table 13. Index bPanControl0 Default value Purpose 0x039c Type Pan_Disable VL6624/VS6624 Pipe setup bank0 PipeSetupBank0(1) control pandisable, pan right, pan left, pan up, pan down C Pan_Disable Pan_Right Pan_Left Pan_Down Pan_Up Possible values bCropControl0 Default value 0x039e Purpose Type Possible values Crop_auto Select cropping manual or auto C Crop_manual Crop_auto uwManualCropHorizontalStart0 0x03a1(MSB) 0x03a2(LSB) Default value Purpose Type 0x00 Set the cropping H start address UINT16 uwManualCropHorizontalSize0 0x03a5(MSB) 0x03a6(LSB) Default value Purpose Type 0x00 Set the cropping H size UINT16 uwManualCropVerticalStart0 0x03a9(MSB) 0x03aa(LSB) Default value Purpose Type 0x00 Set the cropping Vstart address UINT16 uwManualCropVerticalSize0 0x03ad(MSB) 0x03ae(LSB) Default value Purpose Type 0x00 Set the cropping Vsize UINT16 52/106 VL6624/VS6624 Table 13. Index bImageFormat0 #(2) Default value Purpose Type ImageFormat_YCbCr_JFIF select required output image format. CODED Register map Pipe setup bank0 PipeSetupBank0(1) 0x03b0 Possible values ImageFormat_YCbCr_JFIF ImageFormat_YCbCr_Rec601 ImageFormat_YCbCr_Custom - to use custom output select required RgbToYuvOutputSignalRange from 'PipeSetupBank' page. ImageFormat_YCbCr_400 ImageFormat_RGB_565 ImageFormat_RGB_565_Custom - to use custom output select required RgbToYuvOutputSignalRange from 'PipeSetupBank' page. ImageFormat_RGB_444 ImageFormat_RGB_444_Custom - to use custom output select required RgbToYuvOutputSignalRange from 'PipeSetupBank' page. ImageFormat_Bayer10_ThroughVP ImageFormat_Bayer8_CompThroughVP-- to compress bayer data to 8 bits data ImageFormat_Bayer8_TranThroughVP-- to truncate bayer data to 8 bits data bBayerOutputAlignment0 Default value 0x03b2 Purpose Type Possible values bContrast0 0x03b4 Default value Purpose Type bColourSaturation0 0x03b6 Default value Purpose Type bGamma0 Default value 0x03b8 Purpose Type Possible values 0x0f gamma settings. BYTE 0 to 31 0x78 colour saturation control for both YCbCr and RGB output. BYTE 0x87 contrast control for both YCbCr and RGB output. BYTE BayerOutputAlignment_RightShifted set bayer output alignment CODED BayerOutputAlignment_RightShifted BayerOutputAlignment_LeftShifted 53/106 Register map Table 13. Index fHorizontalMirror0 Default Value: 0x03ba Purpose Type Possible values fVerticalFlip0 Default Value: 0x03bc Purpose Type Possible values bChannelD Default value 0x03be Purpose Type Possible values 0x00 Logical DMA Channel Number BYTE 0 to 6 0x00 Vertical image orientation flip Flag_e FALSE TRUE 0x00 Horizontal image orientation flip Flag_e FALSE TRUE VL6624/VS6624 Pipe setup bank0 PipeSetupBank0(1) 1. Can be controlled in all stable state. # denotes registers where changes will only be consumed during the transition to a RUN state. 2. It is possible to switch between any YCrCb (422) mode, RGB mode and Bayer 10bit or move between YCrCb 400 and a bayer8 mode without a requiring a transition to STOP, it is not possible to move between these groups of modes without first a transition to STOP then a BOOT. 54/106 VL6624/VS6624 Register map Pipe setup bank1 Table 14. Index bImageSize1 # Default value Purpose Type 0x0400 ImageSize_SXGA required output dimension. CODED ImageSize_SXGA ImageSize_VGA ImageSize_CIF ImageSize_QVGA ImageSize_QCIF ImageSize_QQVGA ImageSize_QQCIF ImageSize_Manual - to use ManualSubSample and ManualCrop controls select Manual mode. Pipe setup bank1 PipeSetupBank1(1) Possible values uwManualHSize1 # 0x0403(MSB) 0x0404(LSB) Default value Purpose Type uwManualVSize1 # 0x0407(MSB) 0x0408(LSB) Default value Purpose Type 0x00 if ImageSize_Manual selected, input required manual V size UINT16 0x00 if ImageSize_Manual selected, input required manual H size UINT16 uwZoomStepHSize1 0x040b(MSB) 0x040c(LSB) Default value Purpose Type 0x01 Set the zoom H step UINT16 uwZoomStepVSize1 0x040f(MSB) 0x0410(LSB) Default value Purpose Type 0x01 Set the zoom V step UINT16 55/106 Register map Table 14. Index bZoomControl1 Default value Purpose 0x0412 Type Possible values ZoomStop control zoom in, zoom out, zoom stop CODED ZoomStop ZoomStart_In ZoomStart_Out VL6624/VS6624 Pipe setup bank1 PipeSetupBank1(1) uwPanSteplHSize1 0x0415(MSB) 0x0416(LSB) Default value Purpose Type uwPanStepVSize1 0x0419(MSB) 0x041a(LSB) Default value Purpose Type bPanControl1 Default value Purpose 0x041c Type Pan_Disable control pandisable, pan right, pan left, pan up, pan down C Pan_Disable Pan_Right Pan_Left Pan_Down Pan_Up 0x00 Set the PanV step UINT16 0x00 Set the pan H step UINT16 Possible values bCropControl1 Default value 0x041e Purpose Type Possible values Crop_auto Select cropping manual or auto C Crop_manual Crop_auto uwManualCropHorizontalStart1 0x0421(MSB) 0x0422(LSB) Default value Purpose Type 0x00 Set the cropping H start address UINT16 56/106 VL6624/VS6624 Table 14. Index uwManualCropHorizontalSize1 0x0425(MSB) 0x0426(LSB) Default value Purpose Type 0x00 Set the cropping H size UINT16 Register map Pipe setup bank1 PipeSetupBank1(1) uwManualCropVerticalStart1 0x0429(MSB) 0x042a(LSB) Default value Purpose Type 0x00 Set the cropping Vstart address UINT16 uwManualCropVerticalSize1 0x042d(MSB) 0x042e(LSB) Default value Purpose Type bImageFormat1(2) Default value Purpose Type ImageFormat_YCbCr_JFIF select required output image format. CODED ImageFormat_YCbCr_JFIF ImageFormat_YCbCr_Rec601 ImageFormat_YCbCr_Custom - to use custom output select required RgbToYuvOutputSignalRange from 'PipeSetupBank' page. ImageFormat_YCbCr_400 ImageFormat_RGB_565 ImageFormat_RGB_565_Custom - to use custom output select required RgbToYuvOutputSignalRange from 'PipeSetupBank' page. ImageFormat_RGB_444 ImageFormat_RGB_444_Custom - to use custom output select required RgbToYuvOutputSignalRange from 'PipeSetupBank' page. ImageFormat_Bayer10ThroughVP ImageFormat_Bayer8CompThroughVP-- to compress bayer data to 8 bits data ImageFormat_Bayer8TranThroughVP-- to truncate bayer data to 8 bits data 0x00 Set the cropping Vsize UINT16 0x0430 Possible values bBayerOutputAlignment1 Default value 0x0432 Purpose Type Possible values BayerOutputAlignment_RightShifted set bayer output alignment CODED BayerOutputAlignment_RightShifted BayerOutputAlignment_LeftShifted 57/106 Register map Table 14. Index bContrast1 0x0434 Default value Purpose Type bColourSaturation1 0x0436 Default value Purpose Type bGamma1 Default value 0x0438 Purpose Type Possible values fHorizontalMirror1 Default value 0x043a Purpose Type Possible values fVerticalFlip1 Default value 0x043c Purpose Type Possible values bChannelD Default value 0x043e Purpose Type Possible values 0x00 Logical DMA Channel Number BYTE 0 to 6 0x00 Vertical image orientation flip Flag_e FALSE TRUE 0x00 Horizontal image orientation flip Flag_e FALSE TRUE 0x0f gamma settings. BYTE 0 to 31 0x78 0x87 contrast control for both YCbCr and RGB output. BYTE VL6624/VS6624 Pipe setup bank1 PipeSetupBank1(1) colour saturation control for both YCbCr and RGB output. BYTE 1. Can be controlled in all stable state. # denotes registers where changes will only be consumed during the transition to a RUN state. 2. It is possible to switch between any YCrCb (422) mode, RGB mode and Bayer 10bit or move between YCrCb 400 and a bayer8 mode without a requiring a transition to STOP, it is not possible to move between these groups of modes without first a transition to STOP then a BOOT. 58/106 VL6624/VS6624 Register map Viewlive control Table 15. Index ViewLive control ViewLiveControl fEnable (Can be controlled in all stable states) Default value FALSE set to enable the View Live mode. Flag_e FALSE TRUE 0x0480 Purpose Type Possible values bInitialPipeSetupBank (must be setup in PAUSE or STOP mode) Default value PipeSetupBank_0 First frame output will be from PipeSetupBank selected by 'bInitialPipeSetupBank'. if ViewLive is enabled the next frame will be from the other PipeSetupBank, otherwise only one PipeSetupBank will be used. CODED PipeSetupBank_0 PipeSetupBank_1 0x0482 Purpose Type Possible values Viewlive status [read only] Table 16. Index CurrentPipeSetupBank Default value 0x0500 Purpose Type Possible values PipeSetupBank_0 indicates the PipeSetupBank which has most recently been applied to the pixel pipe hardware. CODED PipeSetupBank_0 PipeSetupBank_1 Viewlive status ViewLiveStatus [read only] 59/106 Register map VL6624/VS6624 Power management Table 17. Index 0x0580 bTimeToPowerdown Default value Purpose Type 1. Must be configured in STOP mode Power management PowerManagement(1) 0x0f Time (mSecs) from entering Pause mode until the system automatically transitions stop mode. 0xff disables the automatic transition. BYTE Video timing parameter host inputs Table 18. Index Video timing parameter host inputs VideoTimingParameterHostInputs(1) uwExternalClockFrequencyMhzNumerator Default value 0x0c specifies the External Clock Frequency... external clock frequency = uwExternalClockFrequencyMhzNumerator/bExternalClockFrequencyMh zDenominator UINT16 0x0605 (MSByte) 0x0606 (LSByte) Purpose Type bExternalClockFrequencyMhzDenominator 0x0608 Default value Type 1. Should be configured in the RAW state 0x01 BYTE Video timing control Table 19. Index bSysClkMode Default value Purpose 0x0880 Type 0x00 Decides system centre clock frequency CODED 12MHz Mode 13MHz Mode 13.5MHz Mode Slave Mode Video timing control VideoTimingControl(1) Possible values 1. Should be configured in the RAW state 60/106 VL6624/VS6624 Register map Frame dimension parameter host inputs Table 20. Index bLightingFrequencyHz Default value 0x0c80 Purpose Type 0x00 AC Frequency - used for flicker free time period calculations this mains frequency determines the flicker free time period. BYTE Frame dimension parameter host inputs FrameDimensionParameterHostInputs(1) fFlickerCompatibleFrameLength Default value 0x0c82 Purpose Type Possible values 1. Can be controlled in all stable states FALSE flicker_compatible_frame_length Flag_e FALSE TRUE Static frame rate control Table 21. Index uwDesiredFrameRate_Num 0x0d81 (MSByte) 0x0d82 (LSByte) Default value Purpose Type 0x0f Numerator for the Frame Rate UINT16 Static frame rate control StaticFrameRateControl(1) bDesiredFrameRate_Den 0x0d84 Default value Purpose Type 1. Can be controlled in all stable states 0x01 Denominator for the Frame Rate BYTE 61/106 Register map VL6624/VS6624 Automatic Frame rate control Table 22. Index bDisableFrameRateDamper Default value 0x0e80 Purpose Type Possible values Manual Auto 0x00 Defines the mode in which the framerate of the system would work Automatic Frame Rate Control AutomaticFrameRateControl(1) bMinimumDamperOutput 0x0e8c (MSByte) 0x0e8a (LSByte) Default value Purpose Type 1. Can be controlled in all stable states 0x00 Sets the minimum framerate employed when in automatic framerate mode. UINT16 Exposure controls Table 23. Index bMode Default value Purpose Type 0x1180 AUTOMATIC_MODE Sets the mode for the Exposure Algorithm CODED AUTOMATIC_MODE - Automatic Mode of Exposure which includes computation of Relative Step COMPILED_MANUAL_MODE - Compiled Manual Mode in which the desired exposure is given and not calculated by algorithm DIRECT_MANUAL_MODE - Mode in which the exposure parameters are input directly and not calculated by compiler FLASHGUN_MODE - Flash Gun Mode in which the exposure parameters are set to fixed values Exposure controls ExposureControls(1) possible values 62/106 VL6624/VS6624 Table 23. Index bMetering Default value Purpose 0x1182 Type ExposureMetering_flat Register map Exposure controls ExposureControls(1) Weights to be associated with the zones for calculating the mean statistics Exposure Weight could Centered, Backlit or Flat C ExposureMetering_flat - Uniform gain associated with all pixels ExposureMetering_backlit - more gain associated with centre pixels and bottom pixels ExposureMetering_centred - more gain associated with centre pixels possible values bManualExposureTime_Num Default value 0x1184 Purpose Type 0x01 Exposure Time for Compiled Manual Mode in seconds. Num/Den gives required exposure time BYTE bManualExposureTime_Den 0x1186 Default value Type 0x1e BYTE fpManualFloatExposureTime 0x1189 (MSByte) 0x118a (LSByte) Default value Purpose Type 0x59aa (15008) Exposure Time for the Manual Mode. This value is in uSecs FLOAT iExposureCompensation Default value 0x1190 Purpose 0x00 Exposure Compensation - a user choice for setting the runtime target. A unit of exposure compensation corresponds to 1/6 EV. Default value according to the Nominal Target of 30 is 0. Coded Value of Exposure compensation can take values from -25 to 12. INT8 Type uwDirectModeCoarseIntegrationLines 0x1195 (MSByte) 0x1196 (LSByte) Default value Purpose Type 0x00 Coarse Integration Lines to be set for Direct Mode UINT16 63/106 Register map Table 23. Index VL6624/VS6624 Exposure controls ExposureControls(1) uwDirectModeFineIntegrationPixels 0x1199 (MSByte) 0x119a (LSByte) Default value Purpose Type 0x00 Fine Integration Pixels to be set for Direct Mode UINT16 fpDirectModeAnalogGain 0x119d (MSByte) 0x119e (LSByte) Default value Purpose Type 0x00 Analog Gain to be set for Direct Mode FLOAT fpDirectModeDigitalGain 0x11a1 (MSByte) 0x11a2 (LSByte) Default value Purpose Type 0x00 Digital Gain to be set for Direct Mode FLOAT uwFlashGunModeCoarseIntLines 0x11a5 (MSByte) 0x11a6 (LSByte) Default value Purpose Type 0x00 Coarse Integration Lines to be set for Flash Gun Mode UINT16 uwFlashGunModeFineIntPixels 0x11a9 (MSByte) 0x11aa (LSByte) Default value Purpose Type 0x00 Fine Integration Pixels to be set for Flash Gun Mode UINT16 fpFlashGunModeAnalogGain 0x11ad (MSByte) 0x11ae (LSByte) Default value Purpose Type 0x00 Analog Gain to be set for Flash Gun Mode FLOAT fpFlashGunModeDigitalGain 0x11b1 (MSByte) 0x11b2 (LSByte) Default value Purpose Type 0x00 Digital Gain to be set for Flash Gun Mode FLOAT 64/106 VL6624/VS6624 Table 23. Index fFreezeAutoExposure Default value 0x11b4 Purpose Type possible values FALSE Freeze auto exposure Flag_e FALSE TRUE Register map Exposure controls ExposureControls(1) fpUserMaximumIntegrationTime Default value 0x11b7 (MSByte) 0x11b8 (LSByte) 0x647f (654336) User Maximum Integration Time in microseconds. This control takes in the maximum integration time that host would like to support. This would in turn give an idea of the degree of “wobbly pencil effect” acceptable to Host. FLOAT fpRecommendFlashGunAnalogGainThreshold 0x11bb (MSByte) 0x11bc (LSByte) Default value Purpose Type 0x4200 (4) Recommend flash gun analog gain threshold value FLOAT bAntiFlickerMode Default value Purpose 0x11c0 Type Possible values 1. Can be controlled in all stable states Purpose Type AntiFlickerMode_Inhibit Anti flicker mode CODED AntiFlickerMode_Inhibit AntiFlickerMode_ManualEnable AntiFlickerMode_AutomaticEnable 65/106 Register map VL6624/VS6624 White balance control Table 24. Index bMode Default value Purpose Type 0x1480 AUTOMATIC For setting Mode of the white balance CODED OFF - No White balance, all gains will be unity in this mode AUTOMATIC - Automatic mode, relative step is computed here MANUAL_RGB - User manual mode, gains are applied manually DAYLIGHT_PRESET - DAYLIGHT and all the modes below, fixed value of gains are applied here. TUNGSTEN_PRESET FLUORESCENT_PRESET HORIZON_PRESET MANUAL_COLOUR_TEMP FLASHGUN_PRESET White balance control parameters WBControlParameters(1) possible values bManualRedGain 0x1482 Default value Purpose Type bManualGreenGain 0x1484 Default value Purpose Type bManualBlueGain 0x1486 Default value Purpose Type fpFlashRedGain 0x148b (MSByte) 0x148c (LSByte) Default value Purpose Type fpFlashGreenGain 0x148f (MSByte) 0x1490 (LSByte) Default value Purpose Type 0x3e00 (1.000) Green Gain For FlashGun FLOAT 0x3e80 (1.250) RedGain For FlashGun FLOAT 0x00 User setting for Blue Channel gain BYTE 0x00 User setting for Green Channel gain BYTE 0x00 User setting for Red Channel gain BYTE 66/106 VL6624/VS6624 Table 24. Index fpFlashBlueGain 0x1493 (MSByte) 0x1494 (LSByte) Default value Purpose Type 1. Can be controlled in all stable states Register map White balance control parameters WBControlParameters(1) 0x3e8a (1.269531) BlueGain For FlashGun FLOAT Sensor setup Table 25. Index bBlackCorrectionOffset Default value 0x1990 Purpose Type 1. Can be controlled in all stable states Sensor setup SensorSetup(1) 0x00 Black Correction Offset which would be added to the sensor pedestal to get the RE Offset. This is to improve the black level. BYTE Image Stability [read only] Table 26. Index fWhiteBalanceStable Default value 0x1900 Purpose Type Possible values fExposureStable Default value 0x1902 Purpose Type Possible values 0x00 Specifies that white balance system is stable/unstable CODED Unstable Stable 0x00 Specifies that white balance system is stable/unstable CODED Unstable Stable Image stability [read only] Image stability [read only] 67/106 Register map Table 26. Index fStable Default value 0x1906 Purpose Type Possible values 0x00 VL6624/VS6624 Image stability [read only] Image stability [read only] Consolidated flag to indicate whether the system is stable/unstable CODED Unstable Stable Flash control Table 27. Index bFlashMode Default value Purpose 0x1a80 Type Possible values FLASH_OFF Select the flash type and on/off CODED FLASH_OFF FLASH_TORCH FLASH_PULSE Flash control FlashControl(1) uwFlashOffLine 0x1a83(MSB) 0x1a84(LSB) Default value Purpose Type 1. Can be controlled in all stable states 0x021c (540) At flash_pulse mode, used to control off line UINT16 68/106 VL6624/VS6624 Register map Flash status [read only] Table 28. Index fFlashRecommend Default value 0x1b00 Purpose Type Possible values FALSE This flag is set if the Exposure Control system reports that the image is underexposed and so the flashgun is recommended to the Host. It is at the discretion of Host to use it or not for the following still grab. Flag_e FALSE TRUE Flash status FlashStatus [read only] fFlashGrabComplete Default value 0x1b02 Purpose Type Possible values FALSE This flag indicates that the FlashGun Image has been grabbed. Flag_e FALSE TRUE Scythe filter controls Table 29. Index fDisableFilter Default value 0x1d80 Purpose Type Possible values 1. Can be controlled in all stable state Scythe filter controls ScytheFilterControls(1) FALSE Disable Scythe Defect Correction Flag_e FALSE TRUE Jack filter controls Table 30. Index fDisableFilter Default value 0x1e00 Purpose Type Possible values 1. Can be controlled in all stable state Jack filter controls JackFilterControls(1) FALSE Disable Jack Defect Correction Flag_e FALSE TRUE 69/106 Register map VL6624/VS6624 Demosaic control Table 31. Index bAntiAliasFilterSuppress 0x1e80 Default value Purpose Type 1. Can be controlled in all stable state Demosaic control DemosaicControl(1) 0x08 Anti alias filter suppress BYTE Colour matrix dampers Table 32. Index fDisable Default value 0x1f00 Purpose Type Possible values fpLowThreshold 0x1f03 (MSByte) 0x1f04 (LSByte) Default value Purpose Type fpHighThreshold 0x1f07 (MSByte) 0x1f08 (LSByte) Default value Purpose Type fpMinimumOutput 0x1f0b (MSByte) 0x1f0c (LSByte) Default value Purpose Type 1. Can be controlled in all stable state Colour matrix dampers ColourMatrixDamper(1) FALSE set to disable colour matrix damper and therefore ensure that all the Colour matrix coefficients remain constant under all conditions. Flag_e FALSE TRUE 0x67d1 (2000896) Low Threshold for exposure for calculating the damper slope FLOAT 0x6862 (2498560) High Threshold for exposure for calculating the damper slope FLOAT 0x3acd (0.350098) Minimum possible damper output for the ColourMatrix FLOAT 70/106 VL6624/VS6624 Register map Peaking control Table 33. Index bUserPeakGain 0x2000 Default value Purpose Type 0x0e controls peaking gain / sharpness applied to the image BYTE Peaking control Peaking control(1) fDisableGainDamping Default value 0x2002 Purpose Type Possible values FALSE set to disable damping and therefore ensure that the peaking gain applied remains constant under all conditions Flag_e FALSE TRUE fpDamperLowThreshold_Gain 0x2005 (MSByte) 0x2006 (LSByte) Default value Purpose Type 0x62ac (350208) Low Threshold for exposure for calculating the damper slope - for gain FLOAT fpDamperHighThreshold_Gain 0x2009 (MSByte) 0x200a (LSByte) Default value Purpose Type 0x65d1 (10004488) High Threshold for exposure for calculating the damper slope - for gain FLOAT fpMinimumDamperOutput_Gain 0x200d (MSByte) 0x200e (LSByte) Default value Purpose Type 0x3d33 (0.799805) Minimum possible damper output for the gain. FLOAT bUserPeakLoThresh 0x2010 Default value Purpose Type 0x1e Adjust degree of coring. range: 0 - 63 BYTE fDisableCoringDamping Default value 0x2012 Purpose Type Possible values FALSE set to ensure that bUserPeakLoThresh is applied to gain block Flag_e FALSE TRUE 71/106 Register map Table 33. Index bUserPeakHiThresh 0x2014 Default value Purpose Type 0x30 VL6624/VS6624 Peaking control Peaking control(1) adjust maximum gain that can be applied. range: 0 - 63 BYTE fpDamperLowThreshold_Coring 0x2017 (MSByte) 0x2018 (LSByte) Default value Purpose Type 0x624a (300032) Low Threshold for exposure for calculating the damper slope - for coring FLOAT fpDamperHighThreshold_Coring 0x201b (MSByte) 0x201c (LSByte) Default value Purpose Type 0x656f (900096) High Threshold for exposure for calculating the damper slope - for coring FLOAT fpMinimumDamperOutput_Coring 0x201f (MSByte) 0x2020 (LSByte) Default value Purpose Type 1. Can be controlled in all stable states 0x3a00 (0.2500) Minimum possible damper output for the Coring. FLOAT 72/106 VL6624/VS6624 Register map Pipe 0 RGB to YUV matrix manual control Table 34. Index fRgbToYuvManuCtrl Default value 0x2180 Purpose Type Possible values w0_0 0x2183 (MSByte) 0x2184(LSByte) Default value Purpose Type w0_1 0x2187 (MSByte) 0x2188 (LSByte) Default value Purpose Type w0_2 0x218c (MSByte) 0x218d (LSByte) Default value Purpose Type w1_0 0x2190 (MSByte) 0x218f (LSByte) Default value Purpose Type w1_1 0x2193 (MSByte) 0x2194 (LSByte) Default value Purpose Type w1_2 0x2197 (MSByte) 0x2198 (LSByte) Default value Purpose Type 0x00 Row 1 Column 2 of YUV matrix UINT_16 0x00 Row 1 Column 1 of YUV matrix UINT_16 0x00 Row 1 Column 0 of YUV matrix UINT_16 0x00 Row 0 Column 2 of YUV matrix UINT_16 0x00 Row 0 Column 1 of YUV matrix UINT_16 0x00 Row 0 Column 0 of YUV matrix UINT_16 FALSE Enables manual RGB to YUV matrix for PipeSetupBank0 Flag_e FALSE TRUE Pipe0 RGB to YUV matrix manual control Pipe0RGB to YUV matrix (1) 73/106 Register map Table 34. Index w2_0 0x219b (MSByte) 0x219c (LSByte) Default value Purpose Type w2_1 0x21a0 (MSByte) 0x219f (LSByte) Default value Purpose Type w2_2 0x21a3 (MSByte) 0x21a4 (LSByte) Default value Purpose Type YinY 0x21a7 (MSByte) 0x21a8 (LSByte) Default value Purpose Type YinCb 0x21ab (MSByte) 0x21ac (LSByte) Default value Purpose Type YinCr 0x21b0 (MSByte) 0x21af (LSByte) Default value Purpose Type 1. Can be controlled in all stable states VL6624/VS6624 Pipe0 RGB to YUV matrix manual control Pipe0RGB to YUV matrix (1) 0x00 Row 2 Column 0 of YUV matrix UINT_16 0x00 Row 2 Column 1 of YUV matrix UINT_16 0x00 Row 2 Column 2 of YUV matrix UINT_16 0x00 Y in Y UINT_16 0x00 Y in Cb UINT_16 0x00 Y in Cr UINT_16 74/106 VL6624/VS6624 Register map Pipe 1 RGB to YUV matrix manual control Table 35. Index fRgbToYuvManuCtrl Default value 0x2200 Purpose Type Possible values w0_0 0x2203 (MSByte) 0x2204(LSByte) Default value Purpose Type w0_1 0x2207 (MSByte) 0x2208 (LSByte) Default value Purpose Type w0_2 0x220c (MSByte) 0x220d (LSByte) Default value Purpose Type w1_0 0x2210 (MSByte) 0x220f (LSByte) Default value Purpose Type w1_1 0x2213 (MSByte) 0x2214 (LSByte) Default value Purpose Type w1_2 0x2217 (MSByte) 0x2218 (LSByte) Default value Purpose Type 0x00 Row 1 Column 2 of YUV matrix UINT_16 0x00 Row 1 Column 1 of YUV matrix UINT_16 0x00 Row 1 Column 0 of YUV matrix UINT_16 0x00 Row 0 Column 2 of YUV matrix UINT_16 0x00 Row 0 Column 1 of YUV matrix UINT_16 0x00 Row 0 Column 0 of YUV matrix UINT_16 FALSE Enables manual RGB to YUV matrix for PipeSetupBank1 Flag_e FALSE TRUE Pipe1 RGB To YUV matrix manual control Pipe1RgbToYuv(1) 75/106 Register map Table 35. Index w2_0 0x221b (MSByte) 0x221c (LSByte) Default value Purpose Type w2_1 0x2220 (MSByte) 0x221f (LSByte) Default value Purpose Type w2_2 0x2223 (MSByte) 0x2224 (LSByte) Default value Purpose Type YinY 0x2227 (MSByte) 0x2228 (LSByte) Default value Purpose Type YinCb 0x222b (MSByte) 0x222c (LSByte) Default value Purpose Type YinCr 0x2220 (MSByte) 0x222f (LSByte) Default value Purpose Type 1. Can be controlled in all stable states VL6624/VS6624 Pipe1 RGB To YUV matrix manual control Pipe1RgbToYuv(1) 0x00 Row 2 Column 0 of YUV matrix UINT_16 0x00 Row 2 Column 1 of YUV matrix UINT_16 0x00 Row 2 Column 2 of YUV matrix UINT_16 0x00 Y in Y UINT_16 0x00 Y in Cb UINT_16 0x00 Y in Cr UINT_16 76/106 VL6624/VS6624 Register map Pipe 0 gamma manual control Table 36. Index fGammaManuCtrl Default value 0x2280 Purpose Type Possible values bRPeakGamma 0x2282 Default value Purpose Type bGPeakGamma 0x2284 Default value Purpose Type bBPeakGamma 0x2286 Default value Purpose Type bRUnPeakGamma 0x2288 Default value Purpose Type bGUnPeakGamma 0x228a Default value Purpose Type bBUnPeakGamma 0x228c Default value Purpose Type 1. Can be controlled in all stable states Pipe 0 gamma manual control Pipe0 GammaManuControl(1) FALSE Enables manual Gamma Setup for PipeSetupBank0 Flag_e FALSE TRUE 0x00 Peaked Red channel gamma value BYTE 0x00 Peaked Green channel gamma value BYTE 0x00 Peaked Blue channel gamma value BYTE 0x00 Unpeaked Red channel gamma value BYTE 0x00 Unpeaked Green channel gamma value BYTE 0x00 Unpeaked Blue channel gamma value BYTE 77/106 Register map VL6624/VS6624 Pipe 1 Gamma manual control Table 37. Index fGammaManuCtrl Default value 0x2300 Purpose Type Possible values bRPeakGamma 0x2302 Default value Purpose Type bGPeakGamma 0x2304 Default value Purpose Type bBPeakGamma 0x2306 Default value Purpose Type bRUnPeakGamma 0x2308 Default value Purpose Type bGUnPeakGamma 0x230a Default value Purpose Type bBUnPeakGamma 0x230c Default value Purpose Type 1. Can be controlled in all stable states Pipe 1 Gamma manual control Pipe1GammaManuControl(1) FALSE Enables manual Gamma Setup for PipeSetupBank1 Flag_e FALSE TRUE 0x00 Peaked Red channel gamma value BYTE 0x00 Peaked Green channel gamma value BYTE 0x00 Peaked Blue channel gamma value BYTE 0x00 Unpeaked Red channel gamma value BYTE 0x00 Unpeaked Green channel gamma value BYTE 0x00 Unpeaked Blue channel gamma value BYTE 78/106 VL6624/VS6624 Register map Fade to black Table 38. Index 0x2480 fDisable Default value Purpose Type 0x2483 (MSByte) 0x2484(LSByte) fpBlackValue Default value Purpose Type 0x2487 (MSByte) 0x2488 (LSByte) 0x0000 (0.000) Black value FLOAT FALSE Flag_e FALSE TRUE Fade to black FadeToBlack(1) fpDamperLowThreshold Default value Purpose Type 0x6d56 (6995968) Low Threshold for exposure for calculating the damper slope FLOAT 0x248b (MSByte) 0x248c (LSByte) fpDamperHighThreshold Default value Purpose Type 0x6cdc (11993088) High Threshold for exposure for calculating the damper slope FLOAT 0x248f (MSByte) 0x2490 (LSByte) fpDamperOutput Default value Purpose Type 0x0 (0.0000) Minimum possible damper output. FLOAT 1. Can be controlled in all stable states 79/106 Register map VL6624/VS6624 Output formatter control Table 39. Index bCodeCheckEn 0x2580 Default value Type bBlankFormat 0x2582 Default value Type bSyncCodeSetup Default value Type 0x2584 flag bits 0x01 CODED [0] SyncCodeSetup_ins_code_en - set for embedded sync codes. [1] SyncCodeSetup_frame_mode - 0 for ITU. 1 for mode2 [2] SyncCodeSetup_field_bit [3] SyncCodeSetup_field_tag [4] SyncCodeSetup_field_load 0x00 BYTE 0x07 BYTE Output formatter control OutputFormatterControl(1) bHSyncSetup Default value 0x2586 Type 0x0b CODED [0] HSyncSetup_sync_en [1] HSyncSetup_sync_pol [2] HSyncSetup_only_activelines [3] HSyncSetup_track_henv flag bits bVSyncSetup Default value 0x2588 Type flag bits 0x07 CODED [0] VSyncSetup_sync_en [1] VSyncSetup_pol [2] VSyncSetup_2_sel 80/106 VL6624/VS6624 Table 39. Index bPClkSetup Default value Type 0x258a flag bits 0x05 CODED [0] PClkSetup_prog_lo [1] PClkSetup_prog_hi [2] PClkSetup_sync_en [3] PClkSetup_hsync_en_n [4] PClkSetup_hsync_en_n_track_internal [5] PClkSetup_vsync_n [6] PClkSetup_vsync_n_track_internal [7] PClkSetup_freer Register map Output formatter control OutputFormatterControl(1) fPclkEn Default value 0x258c Type Possible values bOpfSpSetup 0x258e Default value type bBlankData_MSB 0x2590 Default value Type Possible values bBlankData_LSB 0x2592 Default value Type Possible values bRgbSetup Default value 0x2594 Type 0x00 CODED [0] RgbSetup_rgb444_itu_zp [1] RgbSetup_rb_swap [2] RgbSetup_bit_reverse [3] RgbSetup_softreset 0x80 CODED BlankingLSB_Default 0x10 CODED BlankingMSB_Default 0x00 BYTE TRUE Flag_e FALSE TRUE flag bits 81/106 Register map Table 39. Index bYuvSetup Default value 0x2596 Type flag bits 0x00 CODED [0] YuvSetup_u_first [1] YuvSetup_y_first VL6624/VS6624 Output formatter control OutputFormatterControl(1) bVsyncRisingCoarseH 0x2598 Default value Type 0x00 BYTE bVsyncRisingCoarseL 0x259a Default value Type bVsyncRisingFineH 0x259c Default value Type bVsyncRisingFineL 0x259e Default value Type 0x01 BYTE 0x00 BYTE 0x00 BYTE bVsyncFallingCoarseH 0x25a0 Default value Type 0x01 BYTE bVsyncFallingCoarseL 0x25a2 Default value Type 0xf2 BYTE bVsyncFallingFineH 0x25a4 Default value Type bVsyncFallingFineL 0x25a6 Default value Type bHsyncRisingH 0x25a8 Default value Type 0x00 BYTE 0x01 BYTE 0x00 BYTE 82/106 VL6624/VS6624 Table 39. Index bHsyncRisingL 0x25aa Default value Type bHsyncFallingH 0x25ac Default value Type bHsyncFallingL 0x25ae Default value type 0x07 BYTE 0x00 BYTE 0x03 BYTE Register map Output formatter control OutputFormatterControl(1) bOutputInterface Default value 0x25b0 Type flag bits [0] OutputInterface_ITU CODED [0] OutputInterface_ITU [1] OutputInterface_CCP_DataStrobe [2] OutputInterface_CCP_DataClock bCCPExtraData 0x25b2 Default value Type 1. Can be controlled in all stable states 0x08 BYTE 83/106 Register map VL6624/VS6624 NoRA controls Table 40. Index fDisable Default value 0x2600 Type Possible values NoraCtrl_auto Flag_e NoraCtrl_auto - switches off NoRA for scaled outputs NoraCtrl_ManuDisable - Always off NoraCtrl_ManuEnable - Always on NoRA controls NoRAControls(1) bUsage 0x2602 Default value Purpose Type bSplit_Kn 0x2604 Default value Purpose Type bSplit_Nl 0x2606 Default value Purpose Type bTight_Green 0x2608 Default value Purpose Type BYTE 0x01 BYTE 0x01 BYTE 0x01 BYTE 0x04 fDisableNoroPromoting Default value 0x260a Type Possible values FALSE Flag_e FALSE TRUE fpDamperLowThreshold 0x260d (MSByte) 0x260e (LSByte) Default value Purpose Type 0x6862 (2498560) Low Threshold for exposure for calculating the damper slope FLOAT 84/106 VL6624/VS6624 Table 40. Index fpDamperHighThreshold 0x2611 (MSByte) 0x2612 (LSByte) Default value Purpose Type 0x6a62 (4997120) Register map NoRA controls NoRAControls(1) High Threshold for exposure for calculating the damper slope FLOAT MinimumDamperOutput 0x2615 (MSByte) 0x2616 (LSByte) Default value Purpose Type 1. Can be controlled in all stable states 0x3a00 (0.2500) Minimum possible damper output. FLOAT 85/106 Optical specifications VL6624/VS6624 12 Optical specifications Table 41. Optical specifications(1) Parameter Optical format Effective focal length Aperture (F number) Horizontal field of view Depth of field TV distortion 1. All measurements made at 23°C ± 2°C Min. Typ. 1/3 Max. Unit inch mm 3.2 52 60 infinity 1 deg. cm % 12.1 Average sensitivity The average sensitivity is a measure of the image sensor response to a given light stimulus. The optical stimulus is a white light source with a color temperature of 3200K, producing uniform illumination at the surface of the sensor package. An IR blocking filter is added to the light source. The analog gain of the sensor is set to x1. The exposure time, Δt, is set as 50% of maximum. The illuminance, I, is adjusted so the average sensor output code, Xlight, is roughly mid-range equivalent to a saturation level of 50%. Once Xlight has been recorded the experiment is repeated with no illumination to give a value Xdark. Xlight – Xdark The sensitivity is then calculated as --------------------------------------- .The result is expressed in volts per luxΔt ⋅ l second. The sensitivity of the VS6624 is given in Table 42. Table 42. VS6624 average sensitivity VS6624 0.49 Unit V/lux.s Optical parameter Average sensitivity 86/106 VL6624/VS6624 Optical specifications 12.2 Spectral response The spectral response for the VS6524 sensor is shown in Figure 32 Figure 32. Quantum efficiency (H8S1 - 3.0 µm pixel 87/106 Electrical characteristics VL6624/VS6624 13 13.1 Electrical characteristics Absolute maximum ratings Table 43. Symbol TSTO VDD AVDD Absolute maximum ratings Parameter Storage temperature Digital power supplies Analog power supplies Min. -40 -0.5 -0.5 Max. 85 3.3 3.3 Unit °C V V Caution: Stress above those listed under “Absolute Maximum Ratings” can cause permanent damage to the device. This is a stress rating only and functional operations of the device at these or other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 13.2 Operating conditions Table 44. Symbol TAF TAN Supply specifications Parameter Operating temperature, functional (Camera is electrically functional) Operating temperature, nominal (Camera produces acceptable images) Operating temperature, optimal (Camera produces optimal optical performance) Digital power supplies operating range (@ module pin(1)) Analog power supplies operating range (@ module pin(1)) Min. -30 -25 Typ. 25 25 Max. 70 55 Unit °C °C TAO 5 1.7 2.4 2.4 25 1.8 2.8 2.8 30 2.0 3.0 3.0 °C V V V VDD AVDD 1. Module can contain routing resistance up to 5 Ω. 88/106 VL6624/VS6624 Electrical characteristics 13.3 Note: Table 45. Symbol VIL VIH VOL VOH IIL CIN COUT CI/O DC electrical characteristics Over operating conditions unless otherwise specified. DC electrical characteristics Description Input low voltage VDD 2.4 ~ 3.0V Input high voltage Output low voltage Output high voltage Input leakage current Input pins I/O pins Input capacitance, SCL Output capacitance I/O capacitance, SDA IOL < 2 mA IOL < 4 mA IOH< 4 mA 0 < VIN < VDD TA = 25 °C, freq = 1 MHz TA = 25 °C, freq = 1 MHz TA = 25 °C, freq = 1 MHz 0.8 VDD +/- 10 +/- 1 6 6 8 -0.3 0.7 VDD Test conditions VDD 1.7~ 2.0V Min. -0.3 Typ. Max. 0.25 VDD 0.3 VDD VDD + 0.3 0.2 VDD 0.4 VDD Unit V V V V V μA μA pF pF pF Table 46. Symbol Typical current consumption - Sensor mode VGA 30 fps IAVDD Description supply current in power down mode supply current in Standby mode supply current in Stop mode supply current in Pause mode supply current in active streaming run mode Test conditions VDD = 2.8V VDD = 1.8V VDD = 2.8V IVDD Units IPD Istanby IStop IPause Irun CE=0, CLK = 12 MHz CE=1, CLK = 12 MHz CE=1, CLK = 12 MHz CE=1, CLK = 12 MHz CE=1, CLK = 12 MHz streaming VGA @30 fps 1.4 0.0014 0.0014 0.00175 11.3 0.05 1.3 4.1 43.8 55.1 0.07 8 4.2 43.3 54.8 μA mA mA mA mA 89/106 Electrical characteristics VL6624/VS6624 Table 47. Symbol Typical current consumption - Sensor mode SXGA 15 fps IAVDD Description supply current in power down mode supply current in Standby mode supply current in Stop mode supply current in Pause mode supply current in active streaming run mode Test conditions VDD = 2.8V VDD = 1.8V VDD = 2.8V IVDD Units IPD Istanby IStop IPause Irun CE=0, CLK = 12 MHz CE=1, CLK = 12 MHz CE=1, CLK = 12 MHz CE=1, CLK = 12 MHz CE=1, CLK = 12 MHz streaming VGA @30 fps 1.4 0.0014 0.0014 0.0195 11.5 0.05 1.3 4.1 63.4 84.5 0.07 8 4 64.7 87 μA mA mA mA mA 13.4 External clock The VL6624/VS6624 requires an external clock. This clock is a CMOS digital input. The clock input is fail-safe in power down mode. Table 48. External clock Range CLK Min. Typ. VDD 6.50 6.50, 8.40, 9.60, 9.72, 12.00, 13.00, 16.80, 19.20, 19.44 54 Max. V MHz Unit DC coupled square wave Clock frequency (normal operation) 13.5 Chip enable CE is a CMOS digital input. The module is powered down when a logic 0 is applied to CE. See Power up sequence for further information. 90/106 VL6624/VS6624 Electrical characteristics 13.6 I²C slave interface VL6624/VS6624 contains an I²C-type interface using two signals: a bidirectional serial data line (SDA) and an input-only serial clock line (SCL). See Host communication - I²C control interface for detailed description of protocol. Table 49. Symbol Serial interface voltage levels(1) Standard Mode Parameter Min. Hysteresis of Schmitt Trigger Inputs VDD > 2 V VDD < 2V LOW level output voltage (open drain) at 3mA sink current VDD > 2 V VDD < 2V HIGH level output voltage Output fall time from VIHmin to VILmax with a bus capacitance from 10 pF to 400 pF Pulse width of spikes which must be suppressed by the input filter Max. Min. Max. Fast Mode Unit VHYS N/A N/A N/A N/A 0.05 VDD 0.1 VDD - V V VOL1 VOL3 VOH tOF tSP 0 N/A N/A N/A 0.4 N/A N/A 250 N/A 0 0 0.8 VDD 20+0.1Cb(2) 0 0.4 0.2 VDD V V V 250 50 ns ns 1. Maximum VIH = VDDmax + 0.5 V 2. Cb = capacitance of one bus line in pF Figure 33. Voltage level specification Input voltage levels Output voltage levels VOH VIH VIL VOL 91/106 Electrical characteristics VL6624/VS6624 Table 50. Symbol fSCL tHD;STA tLOW tHIGH tSU;STA tHD;DAT tSU;DAT tr tf tSU;STO tBUF Cb VnL VnH Timing specification(1) Standard mode Parameter Min. Max. 100 1000 300 400 Min. 0 0.6 1.3 0.6 0.6 300 100 20+0.1Cb(2) 20+0.1Cb(2) 0.6 1.3 0.1 VDD 0.2 VDD Max. 400 300 300 400 kHz μs μs μs μs ns ns ns ns μs μs pF V V Fast mode Unit 0 4.0 4.7 4.0 4.7 300 250 4.0 4.7 0.1 VDD 0.2 VDD SCL clock frequency Hold time for a repeated start LOW period of SCL HIGH period of SCL Set-up time for a repeated start Data hold time (1) Data Set-up time (1) Rise time of SCL, SDA Fall time of SCL, SDA Set-up time for a stop Bus free time between a stop and a start Capacitive Load for each bus line Noise Margin at the LOW level for each connected device (including hysteresis) Noise Margin at the HIGH level for each connected device (including hysteresis) 1. All values are referred to a VIHmin = 0.9 VDD and VILmax = 0.1 VDD 2. Cb = capacitance of one bus line in pF 92/106 VL6624/VS6624 Figure 34. Timing specification SDA Electrical characteristics tSP tSU;STA SCL tHD;STA tHD;DAT tSU;DAT tSU;STO tBUF tHD;STA S START tLOW tHIGH tr tf P STOP S START All values are referred to a VIHmin = 0.9 VDD and VILmax = 0.1 VDD Figure 35. SDA/SCL rise and fall times 0.9 * VDD 0.9 * VDD 0.1 * VDD 0.1 * VDD tr tf 93/106 Electrical characteristics VL6624/VS6624 13.7 Parallel data interface timing VL6624/VS6624 contains a parallel data output port (D[7:0]) and associated qualification signals (HSYNC, VSYNC, PCLK and FSO). This port can be enabled and disabled (tri-stated) to facilitate multiple camera systems or bit-serial output configurations. The port is disabled (high impedance) upon reset. Figure 36. Parallel data output video timing 1/fPCLK tPCLKL PCLK polarity = 0 tDV D[0:7] HSYNC, VSYNC Valid tPCLKH Table 51. Symbol fPCLK tPCLKL tPCLKH tDV Parallel data interface timings Description PCLK frequency PCLK low width PCLK high width PCLK to output valid [1/2*(1/fPCLK)] - 3.9 [1/2*(1/fPCLK)] - 3.9 -5.15 Min. Max. 54 [1/2*(1/fPCLK)] + 3.9 [1/2*(1/fPCLK)] + 3.9 1.62 Unit MHz ns ns ns 94/106 VL6624/VS6624 User precaution 14 User precaution As is common with many CMOS imagers the camera should not be pointed at bright static objects for long periods of time as permanent damage to the sensor may occur. 95/106 Package mechanical data VL6624/VS6624 15 15.1 Package mechanical data SmOP Figure 37 and Figure 38 present the package outline socket module VS6624Q0KP. Figure 39 and Figure 40 present the package outline FPC module VS6624P0LP. 96/106 1 2 6 3 4 7 8 5 VL6624/VS6624 A 8.00 ±0.05 7.0 4.10 ±0.10 CH 0.40X45, 3 posns 0.03 6.30 ±0.10 A CH, 0.60X45 B 4.0 B C R0 . 10 C 7.88 7.65 at A 5° Figure 37. Package outline socket module VS6624Q0KP D A D E 7.6 REVISIONS E ZONE REV. 1 2 DESCRIPTION 1st release for comment Sheet 2 Added, scallop dimensions changed DATE 31/08/2005 01/09/2005 C C (32 : 1) 0.60 ±0.04 0.63 ±0.06 1.13 Tolerances, unless otherwise stated Interpret drawing per BS308, 3RD Angle Projection Material All dimensions in mm Finish 1.55 ±0.10 1.57 Ref 3 Sheet: 1.55 was 1.50 Sheet 2, Pin out info clarified 05/09/2005 F This drawing is the property of STMicroelectronics and will not be copied or loaned without the written permission of STMicroelectronics. All dimensions in mm Do Not Scale Scale F STMicroelectronics Sig. Date Part No. Linear 0 Place Decimals 0 ±0.10 1 Place Decimals 0.0 ±0.07 2 Place Decimals 0.00 ±0.05 Angular ±0.25 degrees Diameter +0.10/-0.00 Position 0.10 Surface Finish 1.6 microns Home, Personal & Communications Sector Title 624 Camera Outline Sheet Drawn 7899903 6 Socket version 1 of 2 7 8 Package mechanical data 1 2 3 97/106 +0.02 0.55 0.00 44° 2.64 Pin 18 1.00 E 1.00 Pin 7 Pad Layout (Partial section) Interpret drawing per BS308, 3RD Angle Projection Material All dimensions in mm Finish 6.25 5.35 4.45 3.55 2.65 1.75 D E 2.30 0.50 0.90 Tolerances, unless otherwise stated 0.90 98/106 2 0.15 ±0.03 Pin 1 A 3 4 6 7 Top Of Scene 8 5 4.40 D (32 : 1) B Pin 24 0.70 0.60 X 45 3.52 68° 57° C A Pin 1 D 6.25 5.35 4.45 3.55 2.65 1.75 All dimensions in mm Do Not Scale Scale 1 Package mechanical data A B 1.00 Figure 38. Package outline socket module VS6624Q0KP C D F This drawing is the property of STMicroelectronics and will not be copied or loaned without the written permission of STMicroelectronics. F STMicroelectronics Sig. Date Part No. Linear 0 Place Decimals 0 ±1.0 1 Place Decimals 0.0 ±0.10 2 Place Decimals 0.00 ±0.07 Angular ±0.25 degrees Diameter +0.10/-0.00 Position 0.10 Surface Finish 1.6 microns Home, Personal & Communication Sector Title Sheet Drawn 7899903 6 VL6624/VS6624 1 2 3 7 624 Camera Outline 2 of 2 8 DOCUMENT 7899934 1 2 CONTROLLED DOCUMENT (Check latest revision) DATE 15-MAR-2006 page: 1/2 REVISION A 3 4 6 7 8 5 1.2 0.70 B B 1.2 A 7.10 ±0.30 VL6624/VS6624 1.15 ±0.07 2.83 ref 1. 0 ±0 .0 5 4.5 1.00 4.00 ±0.10 (1) 4.60 ±0.15 12.92 ±0.30 22.50 0.25 7.65 @ Datum A ZONE REV. 1 2 3 4 5 1.20 Figure 39. Package outline FPC module VS6624P0LP C +0.25 8.00 - 0.05 B 4.00 0.10 (1) A 6.45 ref B C D Notes: D 1) To optical axis of camera. REVISIONS DESCRIPTION 1st release for comment Tolerances and flex position and length changed from 21.95 Polarisation tab added Sht 1, Module height revised Sht 2, top of scene rotated 90 degrees Tab rotated 90 deg. 7.63 was 7.65, Dim 1.13 added DATE 02/09/05 15/09/2005 19/09/2005 22/09/2005 26/09/2005 A 1.57 ref 3.96 ±0.15 6.16 ±0.15 E 0.30 E A Interpret drawing per BS308, 3RD Angle Projection Material All dimensions in mm Finish Sig. Date Part No. This drawing is the property of STMicroelectronics and will not be copied or loaned without the written permission of STMicroelectronics. Tolerances, unless otherwise stated 1st Release into ADCS Dim 8.00 was +/-0.05, dim 4.60 was +/0.05 27/09/2005 F All dimensions in mm Do Not Scale Scale F STMicroelectronics Home, Personal & Communications Sector Title 624 Camera Outline Sheet Drawn Linear 0 Place Decimals 0 ±0.10 1 Place Decimals 0.0 ±0.07 2 Place Decimals 0.00 ±0.05 Angular ±0.25 degrees Diameter +0.10/-0.00 0.10 Position Surface Finish 1.6 microns 7899934 6 Generic Flex Version 1 of 2 7 Unauthorized reproduction and communication strictly prohibited Package mechanical data Copyright STMicroelectronics 1 2 3 COMPANY CONFIDENTIAL COMPANY CONFIDENTIAL COM 8 99/106 68° C 11 4.40 at datum A 100/106 2 CONTROLLED DOCUMENT (Check latest revision) DATE 15-MAR-2006 page: 2/2 DOCUMENT 7899934 1 6 REVISION A 3 4 7 8 5 Pin Out Information A A Package mechanical data Top of Scene B B 10 OM C Figure 40. Package outline FPC module VS6624P0LP A D D 1 20 1. GND 2. HSYNC 3. VSYNC 4. SCL 5. CLK 6. SDA 7. VDD 8. AVDD 9. PCLK 10. CE 11. DO 5 12. DO 4 13. GND 14. DO 3 15. DO 2 16. DO 1 17. DO 0 18. DO 6 19. DO 7 20. FSO E E Molex type 55560-0201, Board - Board conn http://www.molex.com/pdm_docs/sd/555600207_sd.pdf Interpret drawing per BS308, 3RD Angle Projection Material All dimensions in mm Finish Sig. Date Part No. This drawing is the property of STMicroelectronics and will not be copied or loaned without the written permission of STMicroelectronics. Tolerances, unless otherwise stated F All dimensions in mm Do Not Scale Scale F STMicroelectronics Home, Personal & Communication Sector Title 624 Camera Outline Sheet Drawn Linear 0 Place Decimals 0 ±1.0 1 Place Decimals 0.0 ±0.10 2 Place Decimals 0.00 ±0.07 Angular ±0.25 degrees Diameter +0.10/-0.00 0.10 Position Surface Finish 1.6 microns 7899934 6 Generic Flex Version 2 of 2 7 Unauthorized reproduction and communication strictly prohibited VL6624/VS6624 Copyright STMicroelectronics 1 2 3 COMPANY CONFIDENTIAL COMPANY CONFIDENTIAL COM 8 VL6624/VS6624 Package mechanical data 15.2 LGA In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Table 52. LGA package mechanical data Data book (mm) Symbol A A4 A5 B1 B2 B3 b D D1 D2 D4 e E E1 E2 E4 G G1 G2 G3 G4 H H1 H2 I J K 0.3 3.95 0.8 0.3 0.8 1.0 9.90 9.60 0.25 9.90 9.60 Min. 1.80 0.35 0.7 Typ. 1.90 0.4 0.8 2.0 3.5 0.55 0.30 10.00 9.70 5 5.4 0.8 10.00 9.70 5 4.5 1.1 1 0.4 0.9 0.8 0.9 0.8 0.4 4.05 4.1 0.3 0.5 4.15 1.0 0.5 1.0 1.2 10.10 9.80 0.35 10.10 9.80 Max. 2.00 0.45 0.9 101/106 Package mechanical data Table 52. LGA package mechanical data (continued) Data book (mm) Symbol PHI z L bbb ccc ddd eee nD nE n 0.7 Min. 4° Typ. 5° 1.65 0.8 0.01 0.1 0.08 0.08 9 9 36 VL6624/VS6624 Max. 6° 0.9 102/106 VL6624/VS6624 Figure 41. VL6524QOMH outline drawing Package mechanical data 103/106 Ordering information Table 53. Pin 1 2 3 4 5 6 7 8 9 VL6624/VS6624 VL6524 pin assignment Signal AVDD GND SDA SCL CE VDD CLK GND FSO Pin 10 11 12 13 14 15 16 17 18 Signal GND NC NC NC NC AVDD HSYNC VSYNC GND Pin 19 20 21 22 23 24 25 26 27 Signal DIO7 DIO6 DIO5 DIO4 VDD DIO3 DIO2 DIO1 DIO0 Pin 28 29 30 31 32 33 34 35 36 Signal GND PCLK VDD NC NC NC NC NC GND 16 Ordering information Table 54. Order codes Part number VS6624P0LP VS6624Q0KP VL6624QOMH SMOP2 VGA 8x8, flex SMOP2 VGA 8x8, socket LGA 10x10x1.90 mm Package 104/106 VL6624/VS6624 Revision history 17 Revision history Table 55. Date 1-Feb-2006 14-Apr-2006 Document revision history Revision 1 2 Initial release. Updated Table 51: Parallel data interface timings. Updated module outline drawing s Figure 39 and Figure 40 Updated VIL values in Figure 45: DC electrical characteristics. Updated Figure 33: Voltage level specification. Added Average sensitivity and Spectral response sections in Section 12: Optical specifications. Updated the applications and the document title on cover page. Moved order codes to Chapter 16: Ordering information. Added VL6624 reference and LGA outline drawings and dimensions. Corrected the part number for LGA plug-in in Table 54. Corrected the optical format in Table 41: Optical specifications Updated the list of applications on the cover page. Updated the Table 16: Ordering information. Added Chapter 14: User precaution. Changes 15-Jun-2006 3 06-Nov-2006 06-Dec-2006 08-Jan-2007 02-Jul-2007 4 5 6 7 105/106 VL6624/VS6624 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2007 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 106/106