GS9090BCNE3

GS9090B GenLINX® III 270Mb/s Deserializer for SDI Key Features • • • SMPTE 259M-C compliant descrambling and NRZI to NRZ decoding (with bypass) DVB-ASI 8b/10b decoding Integrated line-based FIFO for data alignment/delay, clock phase interchange, DVB-ASI data packet extraction and clock rate interchange, and ancillary data packet extraction Integrated VCO and reclocker User selectable additional processing features including: TRS, ANC data checksum, and EDH CRC error detection and correction programmable ANC data detection illegal code remapping • • • • • • • • • Internal flywheel for noise immune H, V, F extraction Automatic standards detection and indication Enhanced Gennum Serial Peripheral Interface (GSPI) JTAG test interface Polarity insensitive for DVB-ASI and SMPTE signals +1.8V core power supply with optional +1.8V or +3.3V I/O power supply Small footprint (8mm x 8mm) Low power operation (typically 145mW) Pb-free Description The GS9090B is a 270Mb/s reclocking deserializer with an internal FIFO. It provides a complete receive solution for SD-SDI and DVB-ASI applications. In addition to reclocking and deserializing the input data stream, the GS9090B performs NRZI-to-NRZ decoding, descrambling as per SMPTE 259M-C, and word alignment when operating in SMPTE mode. When operating in DVB-ASI mode, the device will word align the data to K28.5 sync characters and 8b/10b decode the received stream. The internal reclocker features a very wide input jitter tolerance, and is fully compatible with both SMPTE and DVB-ASI input streams. The GS9090B includes a range of data processing functions such as EDH support (error detection and handling), and automatic standards detection. The device can also detect and extract SMPTE 352M payload identifier packets and independently identify the received video standard. This information is read from internal registers via the host interface port. The GS9090B also incorporates a video line-based FIFO. This FIFO may be used in four user-selectable modes to carry out tasks such as data alignment / delay, clock phase interchange, MPEG packet extraction and clock rate interchange, and ancillary data packet extraction. Parallel data outputs are provided in 10-bit multiplexed format, with the associated parallel clock output signal operating at 27MHz. The device may also be used in a low-latency data pass through mode where only descrambling and word alignment will be performed in SMPTE mode. • • Applications • • SMPTE 259M-C Serial Digital Interfaces DVB-ASI Serial Digital Interfaces GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 www.gennum.com 1 of 72 Functional Block Diagram SMPTE_BYPASS IOPROC_EN AUTO/MAN RD_RESET PCLK LFLF+ LB_CONT STAT[3:0] LOCKED DVB_ASI RD_CLK FW_EN carrier_detect LOCK detect Programmable I/O pll_lock TERM DDI_1 DDI_1 Reclocker S->P SMPTE Descramble, Word Alignment and Flywheel TRS Check CSUM Check ANC Data Detection TRS Correct CSUM Correct EDH Check & Correct Illegal Code Remap SMPTE sync detect ASI sync detect DOUT[9:0] DATA_ERROR FIFO DVB-ASI Word Alignment and 8b/10b Decode HOST Interface / JTAG test RESET GS9090B Functional Block Diagram CS_TMS SCLK_TCK SDIN_TDI SDOUT_TDO JTAG/HOST Revision History Version 5 4 3 2 ECR 154185 152803 150198 143668 PCN − − 50711 − − − Date May 2010 October 2009 July 2008 January 2007 Changes and/or Modifications Converted document back to Data Sheet. Changed 6.1 Package Dimensions. DVB_ASI operation specification change in Master mode. Added DVB-ASI payload data rate parameter to Table 2-3: AC Electrical Characteristics. Converting to data sheet. Removed ‘Proprietary and Confidential’ footer. Added section. New Document. 1 143101 December 2006 0 141913 September 2006 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 2 of 72 Contents Key Features ........................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................1 Functional Block Diagram ..............................................................................................................................2 Revision History .................................................................................................................................................2 1. Pin Out...............................................................................................................................................................5 1.1 Pin Assignment ..................................................................................................................................5 2. Electrical Characteristics ......................................................................................................................... 12 2.1 Absolute Maximum Ratings ....................................................................................................... 12 2.2 DC Characteristics ......................................................................................................................... 12 2.3 AC Electrical Characteristics ..................................................................................................... 13 2.4 Solder Reflow Profiles .................................................................................................................. 15 2.5 Host Interface Map ........................................................................................................................ 16 2.5.1 Host Interface Map (R/W registers) ............................................................................. 18 2.5.2 Host Interface Map (Read only registers) .................................................................. 20 3. Detailed Description.................................................................................................................................. 22 3.1 Functional Overview .................................................................................................................... 22 3.2 Serial Digital Input ........................................................................................................................ 22 3.3 Clock and Data Recovery ............................................................................................................ 23 3.3.1 Internal VCO and Phase Detector................................................................................ 23 3.4 Serial-To-Parallel Conversion ................................................................................................... 23 3.5 Modes Of Operation ..................................................................................................................... 23 3.5.1 Lock Detect .......................................................................................................................... 24 3.5.2 Auto Mode............................................................................................................................ 26 3.5.3 Manual Mode ...................................................................................................................... 26 3.6 SMPTE Functionality .................................................................................................................... 27 3.6.1 SMPTE Descrambling and Word Alignment ............................................................ 27 3.6.2 Internal Flywheel .............................................................................................................. 27 3.6.3 Switch Line Lock Handling............................................................................................. 28 3.6.4 HVF Timing Signal Generation ..................................................................................... 29 3.7 DVB-ASI Functionality ................................................................................................................ 30 3.7.1 DVB-ASI 8b/10b Decoding............................................................................................. 31 3.7.2 Status Signal Outputs ....................................................................................................... 31 3.8 Data-Through Functionality ...................................................................................................... 31 3.9 Additional Processing Features ................................................................................................ 32 3.9.1 FIFO Load Pulse ................................................................................................................. 32 3.9.2 Ancillary Data Detection and Indication................................................................... 33 3.9.3 EDH Packet Detection...................................................................................................... 34 3.9.4 EDH Flag Detection........................................................................................................... 35 3.9.5 SMPTE 352M Payload Identifier................................................................................... 37 3.9.6 Automatic Video Standard and Data Format Detection ...................................... 38 3.9.7 Error Detection and Indication ..................................................................................... 39 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 3 of 72 3.9.8 Additional Processing Functions.................................................................................. 44 3.10 Internal FIFO Operation ........................................................................................................... 47 3.10.1 Video Mode ....................................................................................................................... 47 3.10.2 DVB-ASI Mode ................................................................................................................. 48 3.10.3 Ancillary Data Extraction Mode ................................................................................ 52 3.10.4 Bypass Mode..................................................................................................................... 55 3.11 Parallel Data Outputs ................................................................................................................. 55 3.11.1 Parallel Data Bus Output Buffers............................................................................... 56 3.11.2 Parallel Output in SMPTE Mode................................................................................. 56 3.11.3 Parallel Output in DVB-ASI Mode............................................................................. 56 3.11.4 Parallel Output in Data-Through Mode................................................................... 56 3.12 Programmable Multi-Function Outputs .............................................................................. 56 3.13 GS9090B Low-latency Mode ................................................................................................... 58 3.14 GSPI Host Interface ..................................................................................................................... 59 3.14.1 Command Word Description ...................................................................................... 60 3.14.2 Data Read and Write Timing ....................................................................................... 60 3.14.3 Configuration and Status Registers........................................................................... 63 3.15 JTAG Operation ........................................................................................................................... 63 3.16 Device Power Up ......................................................................................................................... 64 4. References & Relevant Standards ......................................................................................................... 66 5. Application Information .......................................................................................................................... 67 5.1 Typical Application Circuit (Part A) ......................................................................................... 67 5.2 Typical Application Circuit (Part B) ......................................................................................... 68 6. Package & Ordering Information .......................................................................................................... 69 6.1 Package Dimensions ..................................................................................................................... 69 6.2 Recommended PCB Footprint ................................................................................................... 70 6.3 Packaging Data ............................................................................................................................... 70 6.4 Marking Diagram ........................................................................................................................... 71 6.5 Ordering Information ................................................................................................................... 71 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 4 of 72 1. Pin Out 1.1 Pin Assignment SMPTE_BYPASS AUTO/MAN CORE_GND VCO_GND LB_CONT VCO_VDD FIFO_EN LOCKED CORE_VDD DVB_ASI FW_EN LF+ LFPLL_GND 1 2 3 56 55 54 53 52 51 50 49 48 47 46 45 44 43 IO_VDD PCLK 42 41 IO_GND DOUT9 PLL_VDD 40 DOUT8 BUFF_VDD DDI DDI 4 39 38 37 36 35 DOUT7 DOUT6 DOUT5 DOUT4 DOUT3 5 6 BUFF_GND 7 8 9 10 11 TERM NC VBG GS9090B XXXXE3 YYWW 34 33 32 DOUT2 DOUT1 DOUT0 NC GENNUM 16 17 18 19 20 21 IO_VDD IOPROC_EN 12 31 30 29 28 IO_GND RD_RESET RD_CLK IO_VDD JTAG/HOST RESET 13 14 15 22 23 24 IO_GND 25 STAT1 26 27 SDIN_TDI SDOUT_TDO CORE_VDD STAT0 STAT2 Center Pad (bottom of package) Figure 1-1: Pin Assignment GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 DATA_ERROR CS_TMS CORE_GND SCLK_TCK STAT3 5 of 72 Table 1-1: Pin List and Description Pin Number 1 Name LF- Timing Analog Type Input Description Loop filter component connection. Connect to pin 56 (LF+) as shown in Typical Application Circuit (Part B) on page 68. Ground connection for phase-locked loop. Connect to GND. 2 PLL_GND Analog Input Power 3 PLL_VDD Analog Input Power Power supply connection for phase-locked loop. Connect to +1.8V DC. Power supply connection for digital input buffers. When DDI/DDI are AC coupled, this pin should be left unconnected. When DDI/DDI are DC coupled, this pin should be connected to +3.3V as shown in Typical Application Circuit (Part B) on page 68. See Serial Digital Input on page 22 for more details. 4 BUFF_VDD Analog Input Power 5, 6 7 DDI, DDI BUFF_GND Analog Analog Input Input Power Serial digital differential input pair. Ground connection for serial digital input buffer. Connect to GND. 8 9, 11 10 TERM NC VBG Analog – Analog Input – Input Termination for serial digital input. AC couple to BUFF_GND No connect. Bandgap filter capacitor. Connect to GND as shown in Typical Application Circuit (Part B) on page 68. CONTROL SIGNAL INPUT Signal Levels are LVCMOS / LVTTL compatible. Used to enable or disable the I/O processing features. When set HIGH, the following I/O processing features of the device are enabled: • Illegal Code Remapping • EDH CRC Error Correction • Ancillary Data Checksum Error Correction • TRS Error Correction • EDH Flag Detection To enable a subset of these features, keep the IOPROC_EN pin HIGH and disable the individual feature(s) in the IOPROC_DISABLE register accessible via the host interface. When set LOW, the device will enter low-latency mode. NOTE: When the internal FIFO is configured for Video mode or Ancillary Data Extraction mode, the IOPROC_EN pin must be set HIGH (see Internal FIFO Operation on page 47). 12 IOPROC_EN Non Synchronous Input 13 JTAG/HOST Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Used to select JTAG Test Mode or Host Interface Mode. When set HIGH, CS_TMS, SCLK_TCK, SDOUT_TDO, and SDIN_TDI are configured for JTAG boundary scan testing. When set LOW, CS_TMS, SCLK_TCK, SDOUT_TDO, and SDIN_TDI are configured as GSPI pins for normal host interface operation. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 6 of 72 Table 1-1: Pin List and Description (Continued) 14 RESET Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Used to reset the internal operating conditions to default setting or to reset the JTAG test sequence. Host Mode (JTAG/HOST = LOW): When asserted LOW, all functional blocks will be set to default conditions and all output signals become high impedance with the exception of the STAT pins and the DATA_ERROR pin which will maintain the last state they were in for the duration that RESET is asserted. JTAG Test Mode (JTAG/HOST = HIGH): When asserted LOW, all functional blocks will be set to default and the JTAG test sequence will be held in reset. When set HIGH, normal operation of the JTAG test sequence resumes. NOTE: See Device Power Up on page 64 for power on reset requirements. 15, 45 CORE_VDD Non Synchronous Input Power Power supply for digital logic blocks. Connect to +1.8V DC. NOTE: For power sequencing requirements please see Device Power Up on page 64. CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Chip Select / Test Mode Select Host Mode (JTAG/HOST = LOW): CS_TMS operates as the host interface chip select, CS, and is active LOW. JTAG Test Mode (JTAG/HOST = HIGH): CS_TMS operates as the JTAG test mode select, TMS, and is active HIGH. 17 SCLK_TCK Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Serial Data Clock / Test Clock. All JTAG / Host Interface address and data are shifted into/out of the device synchronously with this clock. Host Mode (JTAG/HOST = LOW): SCLK_TCK operates as the host interface serial data clock, SCLK. JTAG Test Mode (JTAG/HOST = HIGH): SCLK_TCK operates as the JTAG test clock, TCK. 18, 48 CORE_GND Non Synchronous Synchronous with SCLK_TCK Input Power Output CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Serial Data Output / Test Data Output Host Mode (JTAG/HOST = LOW): SDOUT_TDO operates as the host interface serial output, SDOUT, used to read status and configuration information from the internal registers of the device. JTAG Test Mode (JTAG/HOST = HIGH): SDOUT_TDO operates as the JTAG test data output, TDO. Ground connection for digital logic blocks. Connect to GND. 16 CS_TMS Synchronous with SCLK_TCK Input 19 SDOUT_TDO GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 7 of 72 Table 1-1: Pin List and Description (Continued) 20 SDIN_TDI Synchronous with SCLK_TCK Input CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Serial Data Input / Test Data Input Host Mode (JTAG/HOST = LOW): SDIN_TDI operates as the host interface serial input, SDIN, used to write address and configuration information to the internal registers of the device. JTAG Test Mode (JTAG/HOST = HIGH): SDIN_TDI operates as the JTAG test data input, TDI. 21, 29, 43 IO_VDD Non Synchronous Input Power Power supply for digital I/O. For a 3.3V tolerant I/O, connect pins to either +1.8V DC or +3.3V DC. For a 5V tolerant I/O, connect pins to a +3.3V DC. NOTE: For power sequencing requirements please see Device Power Up on page 64. 22 DATA_ERROR Synchronous with PCLK Output STATUS SIGNAL OUTPUT. Signal levels are LVCMOS / LVTTL compatible. The DATA_ERROR signal will be LOW when an error within the received data stream has been detected by the device. This pin is an inverted logical ‘OR’ing of all detectable errors listed in the internal ERROR_STATUS register. Once an error is detected, DATA_ERROR will remain LOW until the start of the next video frame / field, or until the ERROR_STATUS register is read via the host interface. The DATA_ERROR signal will be HIGH when the received data stream has been detected without error. NOTE: It is possible to program which error conditions are monitored by the device by setting appropriate bits in the ERROR_MASK register HIGH. All error conditions are detected by default. 23, 25, 26, 27 STAT[0:3] Synchronous with PCLK or RD_CLK Output MULTI FUNCTION I/O PORT Signal levels are LVCMOS / LVTTL compatible. Programmable multi-function outputs. By programming the bits is the IO_CONFIG register, each pin can output one of the following signals: •H •V •F • FIFO_LD • ANC_DETECT • EDH_DETECT • FIFO_FULL • FIFO_EMPTY These pins are set to certain default values depending on the configuration of the device and the internal FIFO mode selected. See Programmable Multi-Function Outputs on page 56 for details. 24, 28, 42 IO_GND Non Synchronous Input Power Ground connection for digital I/O. Connect to GND. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 8 of 72 Table 1-1: Pin List and Description (Continued) 30 RD_CLK – Input FIFO READ CLOCK Signal levels are LVCMOS / LVTTL compatible. The parallel data will be clocked out of the FIFO on the rising edge of RD_CLK. 31 RD_RESET Synchronous with RD_CLK Input FIFO READ RESET Signal levels are LVCMOS / LVTTL compatible. Valid input only when the device is in SMPTE mode (SMPTE_BYPASS = HIGH and DVB-ASI = LOW), and the internal FIFO is configured for video mode (See Video Mode on page 47). A HIGH to LOW transition will reset the FIFO pointer to address zero of the memory. 32 - 41 DOUT[0:9] Synchronous with RD_CLK or PCLK Output PARALLEL VIDEO DATA BUS Signal levels are LVCMOS / LVTTL compatible. When the internal FIFO is enabled and configured for either video mode or DVB-ASI mode, parallel data will be clocked out of the device on the rising edge of RD_CLK. When the internal FIFO is in bypass mode, parallel data will be clocked out of the device on the rising edge of PCLK. DOUT9 is the MSB and DOUT0 is the LSB. 44 PCLK – Output PIXEL CLOCK OUTPUT Signal levels are LVCMOS / LVTTL compatible. 27MHz parallel clock output. 46 LOCKED Synchronous with PCLK Output STATUS SIGNAL OUTPUT Signal levels are LVCMOS / LVTTL compatible. The LOCKED signal will be HIGH whenever the device has correctly received and locked to SMPTE compliant data in SMPTE mode or DVB-ASI compliant data in DVB-ASI mode, or when the reclocker has achieved lock in Data-Through mode. It will be LOW otherwise. When the signal is LOW, all digital output signals will be forced to logic LOW levels. 47 DVB_ASI Non Synchronous Input / Output CONTROL SIGNAL INPUT / STATUS SIGNAL OUTPUT Signal levels are LVCMOS / LVTTL compatible. This pin and its function are only supported in Manual mode (AUTO/MAN = LOW). When this pin is set HIGH, the device will be configured to operate in DVB-ASI mode. The SMPTE_BYPASS pin will be ignored. When set LOW, the device will not support the decoding or word alignment of received DVB-ASI data. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 9 of 72 Table 1-1: Pin List and Description (Continued) 49 SMPTE_BYPASS Non Synchronous Input / Output CONTROL SIGNAL INPUT / STATUS SIGNAL OUTPUT Signal levels are LVCMOS / LVTTL compatible. This pin is an input in Manual mode, and an output set by the device in Auto mode. Auto Mode (AUTO/MAN = HIGH): The SMPTE_BYPASS signal will be HIGH only when the device has locked to a SMPTE compliant data stream. It will be LOW otherwise. When the signal is LOW, no I/O processing features are available. Manual Mode (AUTO/MAN = LOW): When this pin is set HIGH in conjunction with DVB_ASI = LOW, the device will be configured to operate in SMPTE mode. All I/O processing features may be enabled in this mode. When the SMPTE_BYPASS pin is set LOW, the device will not support the descrambling, decoding, or word alignment of received SMPTE data. No I/O processing features will be available. 50 AUTO/MAN Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. When set HIGH, the GS9090B will operate in Auto mode. The SMPTE_BYPASS pin becomes an output status signal set by the device. In this mode, the GS9090B will automatically detect, reclock, deserialize, and process SMPTE compliant input data. When set LOW, the GS9090B will operate in Manual mode. The DVB_ASI and SMPTE_BYPASS pins become input control signals. In this mode, these two external pins must be set for the correct reception of either SMPTE or DVB-ASI data. Manual mode also supports the reclocking and deserializing of data not conforming to SMPTE or DVB-ASI streams. 51 FW_EN Non Synchronous Input CONTOL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Used to enable or disable the noise immune flywheel of the device. When set HIGH, the internal flywheel is enabled. This flywheel is used in the extraction of timing signals, the generation of TRS signals, the automatic detection of video standards, and in manual switch line lock handling. When set LOW, the internal flywheel is disabled. Timing based TRS errors will not be detected. 52 FIFO_EN Non Synchronous Input CONTOL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Used to enable / disable the internal FIFO. When FIFO_EN is HIGH, the internal FIFO will be enabled. Data will be clocked out of the device on the rising edge of the RD_CLK input pin if the FIFO is in video mode or DVB-ASI mode. When FIFO_EN is LOW, the internal FIFO is bypassed and parallel data is clocked out on the rising edge of the PCLK output. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 10 of 72 Table 1-1: Pin List and Description (Continued) 53 VCO_VDD Analog Input Power Input Power supply connection for Voltage-Controlled-Oscillator. Connect to +1.8V DC. CONTROL SIGNAL INPUT Control voltage to fine-tune the loop bandwidth of the PLL. 55 VCO_GND Analog Input Power Input Ground connection for Voltage-Controlled-Oscillator. Connect to GND. Loop filter component connection. Connect to pin 1 (LF-) as shown in Typical Application Circuit (Part B) on page 68. Connect to GND following recommendations in Recommended PCB Footprint on page 70 54 LB_CONT Analog 56 LF+ Analog – Center Pad – Power GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 11 of 72 2. Electrical Characteristics 2.1 Absolute Maximum Ratings Table 2-1: Absolute Maximum Ratings Parameter Supply Voltage Core Supply Voltage I/O Input Voltage Range (any input) Ambient Operating Temperature Storage Temperature ESD protection on all pins (see Note 1) Solder Reflow Temperature NOTES: 1. HBM, per JESD22 - A114B Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions or at any other condition beyond those indicated in the AC/DC Electrical Characteristic sections is not implied. Value/Units -0.3V to +2.1V -0.3V to +3.47V -2.0V to + 5.25V -20°C < TA < 85°C -40°C < TSTG < 125°C 1kV 260°C 2.2 DC Characteristics Table 2-2: DC Electrical Characteristics VDD = 1.8V ±5%, 3.3V ±5%; TA = 0°C to 70°C, unless otherwise specified. Typical values: VCC = 1.8V, 3.3V and TA =25°C Parameter System Core Power Supply Voltage Digital I/O Buffer Power Supply Voltage PLL Power Supply Voltage VCO Power Supply Voltage Typical System Power Symbol Condition Min Typ Max Units Notes CORE_VDD IO_VDD IO_VDD PLL_VDD VCO_VDD PD – 1.8V Operation 3.3V Operation – – CORE_VDD = 1.8V IO_VDD = 1.8V T = 2 5o C 1.71 1.71 3.13 1.71 1.71 – 1.8 1.8 3.3 1.8 1.8 145 1.89 1.89 3.47 1.89 1.89 – V V V V V mW – – – – – – Max. System Power PD CORE_VDD = 1.89V IO_VDD = 3.47V T = 7 0o C – – 270 mW – GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 12 of 72 Table 2-2: DC Electrical Characteristics (Continued) VDD = 1.8V ±5%, 3.3V ±5%; TA = 0°C to 70°C, unless otherwise specified. Typical values: VCC = 1.8V, 3.3V and TA =25°C Parameter Digital I/O Input Voltage, Logic LOW Symbol Condition Min Typ Max Units Notes VIL VIH VOL 1.8V Operation or 3.3V Operation 1.8V Operation or 3.3V Operation IOL = 8mA @ 3.3V, 4mA @ 1.8V IOL = -8mA @ 3.3V, -4mA @ 1.8V – – 0.35 x IO_VDD – V – Input Voltage, Logic HIGH 0.65 x IO_VDD – – V – Output Voltage, Logic LOW – 0.4 V – Output Voltage, Logic HIGH VOH IO_VDD 0.4 – – V – Serial Digital Inputs Input Common Mode Voltage VCMIN BUFF_VDD connected to 3.3V supply – BUFF_GND + (VDIFF / 2) 37.5 – BUFF_VDD - (VDIFF / 2) 62.5 V – Input Termination Resistance RIN 50 Ω – 2.3 AC Electrical Characteristics Table 2-3: AC Electrical Characteristics VDD = 1.8V ±5%, 3.3V ±5%; TA = 0°C to 70°C, unless otherwise specified. Typical values: VCC = 1.8V, 3.3V and TA =25°C Parameter System Asynchronous Lock Time (LOCKED signal set HIGH) Symbol Condition Min Typ Max Units Notes tLOCK Input jitter of 0.2UI, No data to SMPTE, SMPTE_BYPASS = HIGH DVB_ASI = LOW, at 25°C – – 235 us 1 Asynchronous Lock Time (LOCKED signal set HIGH) tLOCK Input jitter of 0.2UI, No data to non-SMPTE, SMPTE_BYPASS = LOW DVB_ASI = LOW, at 25°C – – 165 us 1 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 13 of 72 Table 2-3: AC Electrical Characteristics (Continued) VDD = 1.8V ±5%, 3.3V ±5%; TA = 0°C to 70°C, unless otherwise specified. Typical values: VCC = 1.8V, 3.3V and TA =25°C Parameter Serial Digital Input Serial Input Data Rate DVB-ASI Payload Data Rate Symbol Condition Min Typ Max Units Notes DRSDI DRASI – 204 byte mode 188 byte mode – – – – 200 100 270 – – 0.5 800 800 – 213.9 213.7 – 1700 2200 Mb/s Mb/s Mb/s UI mVp-p mVp-p – 2,4 3,4 5 – – Serial Input Jitter Tolerance Differential Input Voltage Range IJT – – – BUFF_VDD = 1.8V BUFF_VDD = 3.3V Parallel Output Parallel Output Clock Frequency Parallel Output Clock Duty Cycle Variation of Parallel Output Clock (from 27MHz) Output Data Hold Time Output Delay Time fPCLK DCPCLK – – – Device Unlocked – 40 -7.5 27 – – – 60 +7.5 MHz % % – – 6 tOH tOD With 15pF load With 15pF load 3 – – – – 10 ns ns 7 7 GSPI GSPI Input Clock Frequency GSPI Clock Duty Cycle GSPI Setup Time GSPI Hold Time NOTES 1. No signal to signal present, or a switch from another data rate to 270Mb/s. 2. Transmission format includes 204 byte data packets preceded by two K28.5 synchronization characters. Payload data rate excludes the two K28.5 synchronization characters. 3. Transmission format includes 188 byte data packets preceded by two K28.5 synchronization characters. Payload data rate excludes the two K28.5 synchronization characters. 4. Maximum payload is achieved via data packet mode,however, any combination of burst and packet mode is supported as long as each byte or packet is preceded by two K28.5 characters. 5. Power supply noise 50mVpp at 15kHz, 100kHz, 1MHz sinusoidal modulation. 6. When the serial input to the GS9090B is removed, the PCLK output signal will continue to operate at 27MHz and the internal VCO will remain at this frequency within +/-7.5%. 7. Timing includes the following outputs: DOUT[9:0], H, V, F, ANC, EDH_DETECT, FIFO_FULL, FIFO_EMPTY, FIFO_LD, WORDERR, SYNCOUT. When the FIFO is enabled, the outputs are measured with respect to RD_CLK. fGSPI DCGSPI tGS tG H – – – – – 40 1.5 – – – – – 54 60 – 1.5 MHz % ns ns – – – – GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 14 of 72 2.4 Solder Reflow Profiles The device is manufactured with Matte-Sn terminations and is compatible with both standard eutectic and Pb-free solder reflow profiles. MSL qualification was performed using the maximum Pb-free reflow profile shown in Figure 2-1. The recommended standard eutectic reflow profile is shown in Figure 2-2. Temperature 6 0-150 se c . 20-40 se c . 2 6 0° C 250° C 3 ° C /se c m ax 217° C 6 ° C /se c m ax 200° C 150° C 25° C Time 6 0-180 se c . max 8 min. max Figure 2-1: Maximum Pb-free Solder Reflow Profile (Preferred) Temperature 6 0-150 se c . 10-20 se c . 230° C 220° C 3 ° C /se c m ax 183° C 6 ° C /se c m ax 150° C 100° C 25° C Time 120 se c . max 6 m in. max Figure 2-2: Standard Pb Solder Reflow Profile GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 15 of 72 2.5 Host Interface Map Table 2-4: Host Interface Map 15 Not Used Not Used Not Used b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 14 13 12 11 10 9 8 7 6 5 4 3 2 b2 1 b1 0 b0 Register Name Address FIFO_LD_POSITION[12:0] 28h 27h 26h Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used VD_STD_ ERR_ MASK b6 b6 b6 b6 b6 b6 b7 b7 b8 b8 b9 b9 b10 b10 Not Used Not Used Not Used b12 Not Used b11 b10 b10 b10 b10 b9 b9 b9 b9 b9 b9 b8 b8 b8 b8 b8 b8 b8 b8 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 FF_CRC_ ERR_ MASK AP_CRC_ ERR_ MASK LOCK_ ERR_ MASK b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 CCS_ERR_ MASK SAV_ERR_ MASK EAV_ERR _MASK ERROR_MASK_REGISTER 25h FF_PIXEL_END_F1[12:0] Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used b10 Not Used Not Used Not Used Not Used b10 Not Used Not Used Not Used Not Used b10 b9 Not Used Not Used Not Used Not Used b10 b9 Not Used Not Used b12 b11 b10 b9 b8 Not Used Not Used b12 b11 b10 b9 b8 Not Used Not Used b12 b11 b10 b9 b8 b7 Not Used Not Used b12 b11 b10 b9 b8 b7 Not Used Not Used b12 b11 b10 b9 b8 b7 Not Used Not Used b12 b11 b10 b9 b8 b7 Not Used Not Used b12 b11 b10 b9 b8 b7 24h Not Used Not Used Not Used b12 b11 b10 b9 b8 b7 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 FF_PIXEL_START_F1[12:0] 23h FF_PIXEL_END_F0[12:0] 22h FF_PIXEL_START_F0[12:0] 21h AP_PIXEL_END_F1[12:0] 20h AP_PIXEL_START_F1[12:0] 1Fh AP_PIXEL_END_F0[12:0] 1Eh AP_PIXEL_START_F0[12:0] 1Dh FF_LINE_END_F1[10:0] 1Ch FF_LINE_START_F1[10:0] 1Bh FF_LINE_END_F0[10:0] 1Ah FF_LINE_START_F0[10:0] 19h AP_LINE_END_F1[10:0] 18h AP_LINE_START_F1[10:0] 17h AP_LINE_END_F0[10:0] 16h AP_LINE_START_F0[10:0] 15h RASTER_STRUCTURE4[10:0] 14h RASTER_STRUCTURE3[12:0] 13h GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 16 of 72 Table 2-4: Host Interface Map (Continued) 15 Not Used Not Used VFO4-b7 VFO2-b7 b15 b15 b15 b15 b15 Not Used Not Used Not Used Not Used Not Used Not Used Not Used ANC_ DATA_ DELETE STAT3_ CONFIG b2 EDH_ FLAG_ UPDATE ANC-EDA ANC-EDA _IN Not Used ANC-EDH ANC-EDH _IN Not Used AP_CRC _V FF_CRC _V STAT3_ CONFIG b1 STAT3_ CONFIG b0 STAT2_ CONFIG b2 EDH_ DETECT Not Used b9 b8 b7 Not Used Not Used Not Used Not Used Not Used b9 b8 b7 Not Used Not Used Not Used Not Used b10 b9 b8 b7 b6 b6 b6 Not Used Not Used Not Used Not Used b10 b9 b8 b7 b6 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b5 b5 b5 b5 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b4 b4 b4 b4 b4 b4 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b3 b3 b3 b3 b3 b3 b3 b3 VFO2-b6 VFO2-b5 VFO2-b4 VFO2-b3 VFO2-b2 VFO2-b1 VFO2-b0 VFO1-b7 VFO1-b6 VFO1-b5 VFO1-b4 VFO1-b3 VFO4-b6 VFO4-b5 VFO4-b4 VFO4-b3 VFO4-b2 VFO4-b1 VFO4-b0 VFO3-b7 VFO3-b6 VFO3-b5 VFO3-b4 VFO3-b3 Not Used Not Used Not Used Not Used b10 b9 b8 b7 b6 b5 b4 b3 b2 VFO3-b2 VFO1-b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 Not Used Not Used b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 14 13 12 11 10 9 8 7 6 5 4 3 2 1 b1 b1 VFO3-b1 VFO1-b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 0 b0 b0 VFO3-b0 VFO1-b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 Register Name Address RASTER_STRUCTURE2[12:0] 12h RASTER_STRUCTURE1[10:0] 11h VIDEO_FORMAT_OUT_B(4,3) 10h VIDEO_FORMAT_OUT_A(2,1) 0Fh ANC_TYPE(5)[15:0] 0Eh ANC_TYPE(4)[15:0] 0Dh ANC_TYPE(3)[15:0] 0Ch ANC_TYPE(2)[15:0] 0Bh ANC_TYPE(1)[15:0] 0Ah ANC_LINE_B[10:0] 09h ANC_LINE_A[10:0] 08h FIFO_FULL_OFFSET 07h FIFO_EMPTY_OFFSET 06h IO_CONFIG 05h Not Used Not Used Not Used ANC_ DATA_ SWITCH Not Used STAT2_ CONFIG b1 VERSION_ 352M STAT2_ CONFIG b0 Not Used STAT1_ CONFIG b2 Not Used STAT1_ CONFIG b1 STD_ LOCK STAT1_ CONFIG b0 DATA_ FORMAT b3 STAT0_ CONFIG b2 DATA_ FORMAT b2 STAT0_ CONFIG b1 DATA_ FORMAT b1 STAT0_ CONFIG b0 DATA_ FORMAT b0 DATA_FORMAT 04h Not Used Not Used Not Used EDH_FLAG_OUT Not Used Not Used ANC-UE _IN Not Used Not Used Not Used ANC-IDA _IN ANC-IDH _IN ANC-UES ANC-IDA ANC-IDH 03h FF-UES FF-UES_ IN Not Used FF-IDA FF-IDA_IN FF-IDH FF-IDH _IN Not Used Not Used FF-EDA FF-EDA _IN VD_STD_ ERR FF-EDH FF-EDH _IN FF_CRC_ ERR AP-UES AP-UES _IN AP_CRC_ ERR AP-IDA AP-IDA_I N LOCK_ ERR AP-IDH AP-IDH_I N CCS_ERR AP-EDA AP-EDA_I N SAV_ERR AP-EDH AP-EDH_I N EAV_ERR EDH_FLAG_IN 02h ERROR_STATUS 01h Not Used IOPROC_DISABLE Not Used Not Used Not Used 00h Not Used Not Used Not Used ANC_PKT _EXT FIFO_ MODE b1 FIFO_ MODE b0 H_ CONFIG Not Used Not Used ILLEGAL_ REMAP EDH_CRC _INS ANC_ CSUM_ INS TRS_IN NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. The contents may be accessed in Ancillary Data Extraction mode (see Section 3.10.3). GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 17 of 72 2.5.1 Host Interface Map (R/W registers) Table 2-5: Host Interface Map (R/W registers) Address 28h 27h 26h 25h VD_STD_ ERR_ MASK b12 b12 b12 b12 b12 b12 b12 b12 b10 b10 b10 b10 b10 b10 b10 b10 b9 b9 b9 b9 b9 b9 b9 b9 b11 b10 b9 b11 b10 b9 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b11 b10 b9 b8 b11 b10 b9 b8 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b11 b10 b9 b8 b7 b11 b10 b9 b8 b7 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b11 b10 b9 b8 b7 b6 b11 b10 b9 b8 b7 b6 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 FF_CRC_ ERR_ MASK AP_CRC_ ERR_ MASK b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 LOCK_ ERR_ MASK b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 CCS_ERR_ MASK SAV_ERR_ MASK EAV_ERR _MASK b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 15 14 13 12 11 10 9 8 7 6 5 4 3 2 b2 1 b1 0 b0 Register Name FIFO_LD_POSITION[12:0] ERROR_MASK_REGISTER FF_PIXEL_END_F1[12:0] 23h 22h 21h 20h 1Fh 1Eh 1Dh 1Ch 1Bh 1Ah 19h 18h 17h 16h 15h 14h 13h 12h 24h b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 FF_PIXEL_START_F1[12:0] FF_PIXEL_END_F0[12:0] FF_PIXEL_START_F0[12:0] AP_PIXEL_END_F1[12:0] AP_PIXEL_START_F1[12:0] AP_PIXEL_END_F0[12:0] AP_PIXEL_START_F0[12:0] FF_LINE_END_F1[10:0] FF_LINE_START_F1[10:0] FF_LINE_END_F0[10:0] FF_LINE_START_F0[10:0] AP_LINE_END_F1[10:0] AP_LINE_START_F1[10:0] AP_LINE_END_F0[10:0] AP_LINE_START_F0[10:0] GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 18 of 72 Table 2-5: Host Interface Map (R/W registers) (Continued) Address 11h 10h 0Fh 0Eh 0Dh 0Ch 0Bh 0Ah 09h 08h 07h 06h ANC_ DATA_ DELETE ANC_ DATA_ SWITCH EDH_ FLAG_ UPDATE STAT3_ CONFIG b2 STAT3_ CONFIG b1 STAT3_ CONFIG b0 STAT2_ CONFIG b2 b9 b8 b7 b9 b8 b7 b10 b9 b8 b7 b6 b6 b6 b10 b9 b8 b7 b6 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b5 b5 b5 b5 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b4 b4 b4 b4 b4 b4 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b3 b3 b3 b3 b3 b3 b3 b3 b2 b2 b2 b2 b2 b2 b2 b2 b2 b1 b1 b1 b1 b1 b1 b1 b1 b1 b0 b0 b0 b0 b0 b0 b0 b0 b0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Register Name ANC_TYPE(5)[15:0] ANC_TYPE(4)[15:0] ANC_TYPE(3)[15:0] ANC_TYPE(2)[15:0] ANC_TYPE(1)[15:0] ANC_LINE_B[10:0] ANC_LINE_A[10:0] FIFO_FULL_OFFSET FIFO_EMPTY_OFFSET IO_CONFIG 05h STAT2_ CONFIG b1 STAT2_ CONFIG b0 STAT1_ CONFIG b2 STAT1_ CONFIG b1 STAT1_ CONFIG b0 STAT0_ CONFIG b2 STAT0_ CONFIG b1 STAT0_ CONFIG b0 DATA_FORMAT 04h 03h 02h 01h 00h ANC_PKT _EXT FIFO_ MODE b1 FIFO_ MODE b0 H_ CONFIG ILLEGAL_ REMAP EDH_CRC _INS ANC_ CSUM_ INS TRS_IN IOPROC_DISABLE NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. The contents may be accessed in Ancillary Data Extraction mode (see Section 3.10.3). GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 19 of 72 2.5.2 Host Interface Map (Read only registers) Table 2-6: Host Interface Map (Read only registers) Address 28h 27h 26h 25h 24h 23h 22h 21h 20h 1Fh 1Eh 1Dh 1Ch 1Bh 1Ah 19h 18h 17h 16h 15h 14h 13h 12h 11h b12 b12 b11 b11 b10 b10 b10 b10 b9 b9 b9 b9 b8 b8 b8 b8 b7 b7 b7 b7 b6 b6 b6 b6 b5 b5 b5 b5 b4 b4 b4 b4 b3 b3 b3 b3 b2 b2 b2 b2 b1 b1 b1 b1 b0 b0 b0 b0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Register Name RASTER_STRUCTURE4[10:0] RASTER_STRUCTURE3[12:0] RASTER_STRUCTURE2[12:0] RASTER_STRUCTURE1[10:0] GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 20 of 72 Table 2-6: Host Interface Map (Read only registers) (Continued) Address 10h 0Fh 0Eh 0Dh 0Ch 0Bh 0Ah 09h 08h 07h 06h 05h 04h AP_CRC_ V FF_CRC_V EDH_ DETECT VERSION_ 352M STD_ LOCK DATA_ FORMAT b3 FF-IDA FF-IDA_IN FF-IDH FF-IDH _IN FF-EDA FF-EDA _IN VD_STD_ ERR FF-EDH FF-EDH _IN FF_CRC_ ERR AP-UES AP-UES _IN AP_CRC_ ERR AP-IDA AP-IDA _IN LOCK_ ERR DATA_ FORMAT b2 AP-IDH AP-IDH _IN CCS_ERR DATA_ FORMAT b1 AP-EDA AP-EDA _IN SAV_ERR DATA_ FORMAT b0 AP-EDH AP-EDH _IN EAV_ERR VFO2-b7 VFO2-b6 VFO2-b5 VFO2-b4 VFO2-b3 VFO2-b2 VFO2-b1 VFO2-b0 VFO1-b7 VFO1-b6 VFO1-b5 VFO1-b4 VFO1-b3 VFO4-b7 VFO4-b6 VFO4-b5 VFO4-b4 VFO4-b3 VFO4-b2 VFO4-b1 VFO4-b0 VFO3-b7 VFO3-b6 VFO3-b5 VFO3-b4 VFO3-b3 VFO3-b2 VFO1-b2 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 VFO3-b1 VFO1-b1 0 VFO3-b0 VFO1-b0 Register Name VIDEO_FORMAT_OUT_B(4,3) VIDEO_FORMAT_OUT_A(2,1) DATA_FORMAT EDH_FLAG_OUT 02h Not Used ANC-UES _IN ANC-IDA _IN ANC-IDH _IN ANC-EDA _IN ANC-EDH _IN FF-UES _IN 03h Not Used ANC-UES ANC-IDA ANC-IDH ANC-EDA ANC-EDH FF-UES EDH_FLAG_IN ERROR_STATUS 01h 00h NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. The contents may be accessed in Ancillary Data Extraction mode (see Section 3.10.3). GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 21 of 72 3. Detailed Description • • • • • • • • • • • • • • • • Functional Overview Serial Digital Input Clock and Data Recovery Serial-To-Parallel Conversion Modes Of Operation SMPTE Functionality DVB-ASI Functionality Data-Through Functionality Additional Processing Features Internal FIFO Operation Parallel Data Outputs Programmable Multi-Function Outputs GS9090B Low-latency Mode GSPI Host Interface JTAG Operation Device Power Up 3.1 Functional Overview The GS9090B is a 270Mb/s reclocking deserializer with an internal FIFO and programmable multi-function output port. The device has two basic modes of operation. In Auto mode, the GS9090B can automatically detect SMPTE data streams at its input. In Manual mode, the device can be set to process SMPTE or DVB/ASI data streams. The digital signal processing core handles ancillary data detection/indication, error detection and handling (EDH), SMPTE352M extraction, and automatic video standards detection. These features are all enabled by default, but may be individually disabled via internal registers accessible through the GSPI host interface. The provided programmable multi-function output pins may be configured to output various status signals including H, V, and F timing, ancillary data detection, EDH detection, and a FIFO load pulse. The internal FIFO supports 4 modes of operation, which may be used for data alignment, data delay, MPEG packet extraction, or ancillary data extraction. The GS9090B contains a JTAG interface for boundary scan test implementations. 3.2 Serial Digital Input The GS9090B contains a current mode differential serial digital input buffer. The input buffer has internal 50Ω termination resistors, which are connected to ground via the TERM pin. If the input signal is AC coupled to the device, the signal source common mode level will be set internally to typically 1.45V. If the input signal is DC coupled to the device, the internal biasing will be ignored. Please see AC Electrical Characteristics for Common Mode range and swing characteristics. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 22 of 72 3.3 Clock and Data Recovery The GS9090B contains an integrated clock and data recovery block. The function of this block is to lock to the input data stream, extract a clean clock, and retime the serial digital data to remove high frequency jitter. 3.3.1 Internal VCO and Phase Detector The GS9090B uses an internal VCO and PFD as part of the reclocker's phase-locked loop. Each block requires a +1.8V DC power supply, which is supplied via the VCO_VDD / VCO_GND and PLL_VDD / PLL_GND pins. 3.4 Serial-To-Parallel Conversion The retimed data and phase-locked clock signals from the reclocker are fed to the serial-to-parallel converter. The function of this block is to extract 10-bit parallel data words from the reclocked serial data stream and simultaneously present them to the SMPTE and DVB-ASI word alignment blocks. 3.5 Modes Of Operation The GS9090B has two basic modes of operation: Auto mode and Manual mode. Auto mode is enabled when AUTO/MAN is set HIGH, and Manual mode is enabled when AUTO/MAN is set LOW. As indicated in Figure 3-1. DVB_ASI and data-through are only supported in Manual mode. In Auto mode (AUTO/MAN = HIGH), the GS9090B will automatically detect, reclock, deserialize, and process SMPTE 259M-C input data. In Manual mode (AUTO/MAN = LOW), the SMPTE_BYPASS and DVB_ASI pins must be set as per Table 3-2 for the correct reception of either SMPTE or DVB-ASI data. Manual mode also supports the reclocking and deserializing of 270Mb/s data not conforming to SMPTE or DVB-ASI streams. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 23 of 72 Auto Mode (Section 3.5.2) SMPTE Functionality (section 3.6) GS9090 SMPTE Functionality (section 3.6) Manual Mode (Section 3.5.3) DVB-ASI Functionality (section 3.7) Data-Through Functionality (Section 3.8) Figure 3-1: GS9090B’s Modes of Operation 3.5.1 Lock Detect Once the reclocker has locked to the received serial digital data stream, the lock detect block of the GS9090B searches for the appropriate sync words, and indicates via the LOCKED output pin when the device has successfully achieved lock. The LOCKED pin is designed to be stable. It will not toggle during the locking process, nor will it glitch during a SMPTE synchronous switch. The lock detection process is summarized in Figure 3-2. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 24 of 72 Power Up or RESET Valid Serial Digital Input? YES NO (Input data invalid) Device sets LOCKED pin LOW Device in Auto Mode? YES (Section 3.6.2) (Device in Manual Mode) NO Internal reclocker NO locked? YES Device sets SMPTE_BYPASS pin LOW Device outputs 27MHz +/- 7% clock on PCLK pin SMPTE TRS words detected? YES SMPTE_BYPASS and DVB_ASI pins must be set to support different functionalities (Section 3.6.3). NO Device sets all other output pins LOW Device sets LOCKED pin HIGH Device sets SMPTE_BYPASS status pin (Section 3.6.2) Device outputs accurate 27MHz clock on PCLK pin Figure 3-2: Lock Detection Process The lock detection algorithm (Figure 3-2) first determines if the input is a 270Mb/s serial digital data stream. When the serial data input signal is considered invalid, the LOCKED pin will be set LOW, and all device outputs will be forced LOW, except PCLK. If a valid serial digital input signal has been detected, and the device is in Auto mode, the lock algorithm will attempt to detect the presence of SMPTE TRS words. Assuming that a valid 270Mb/s SMPTE signal has been applied to the device, the LOCKED pin will be set HIGH. The PCLK output frequency will be 27MHz +/- 7.5% when the device is not locked, as well as during the lock detection process. For serial inputs that do not conform to SMPTE or DVB-ASI formats, the device can only achieve the locked state in manual mode. In Auto mode, the LOCKED signal will be asserted LOW, the parallel outputs will be latched to logic LOW, and the SMPTE_BYPASS and DVB_ASI output signals will also be set LOW. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 25 of 72 In Manual mode, the SMPTE_BYPASS and DVB_ASI input pins must be set LOW. If the GS9090B achieves lock to the input data signal, data will be passed directly to the parallel outputs without any further processing (see Section 3.8). 3.5.2 Auto Mode The GS9090B is in Auto mode when the AUTO/MAN input pin is set HIGH. In this mode, SMPTE_BYPASS becomes an output status pin, as shown in Table 3-1. Table 3-1: Auto Mode Output Status Signals Pin Settings Format SD SMPTE NOT SMPTE HIGH LOW SMPTE_BYPASS 3.5.3 Manual Mode The GS9090B is in Manual mode when the AUTO/MAN input pin is set LOW. In this mode, the SMPTE_BYPASS and DVB_ASI pins become input signals, and the operating mode of the device is set by these pins as shown in Table 3-2 . Table 3-2: Manual Mode Input Status Signals Pin Settings Format SD SMPTE DVB-ASI NOT SMPTE OR DVB-ASI (Data-Through mode)* HIGH X LOW SMPTE_BYPASS LOW HIGH LOW DVB_ASI *NOTE: See Section 3.8 for more detail on Data-Through mode GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 26 of 72 3.6 SMPTE Functionality The GS9090B is in SMPTE mode once the device has detected two SMPTE TRS sync words. The GS9090B will remain in SMPTE mode until six SMPTE TRS sync words fail to be detected. TRS word detection is a continuous process, and the device will identify both 8-bit and 10-bit TRS words. In Auto mode, the GS9090B sets the SMPTE_BYPASS pin HIGH to indicate that it has locked to a SMPTE input data stream. When operating in Manual mode, the DVB_ASI pin must be set LOW and the SMPTE_BYPASS pin must be set HIGH in order to enable SMPTE operation. 3.6.1 SMPTE Descrambling and Word Alignment The GS9090B performs NRZI-to-NRZ decoding, descrambling according to SMPTE 259M-C, and word alignment of the data to the TRS sync words when in SMPTE mode. NOTE: When 8-bit data is embedded into the SMPTE signal, the source must have the two LSBs of the 10-bit stream set to logic LOW in order for word alignment to function correctly. 3.6.2 Internal Flywheel The GS9090B has an internal flywheel for the generation of internal / external timing signals, the detection and correction of certain error conditions, and the automatic detection of video standards. The flywheel is only operational in SMPTE mode. The flywheel 'learns' the video standard by timing the horizontal and vertical reference information contained in the TRS ID words of the received video stream. The flywheel maintains information about the total line length, active line length, total number of lines per field / frame, and total active lines per field / frame for the received video stream. Full synchronization of the flywheel to the received video standard therefore requires one complete video frame. Once synchronization has been achieved, the flywheel will continue to monitor the received TRS timing information to maintain synchronization. The FW_EN input pin controls the synchronization mechanism of the flywheel. When this input signal is LOW, the flywheel will re-synchronize all pixel and line based counters on every received TRS ID word. When FW_EN is set to logic HIGH, re-synchronization occurs when the flywheel detects three to four consecutive video lines containing mistimed TRS information. This provides a measure of noise immunity to internal and external timing signal generation. The flywheel will be disabled if the device loses lock, or a LOW-to-HIGH transition occurs on the RESET pin. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 27 of 72 3.6.3 Switch Line Lock Handling The principle of switch line lock handling is that the switching of synchronous video sources will only disturb the horizontal timing and alignment of the stream, whereas the vertical timing remains in synchronization. 3.6.3.1 Automatic Switch Line Lock Handling The GS9090B also implements automatic switch line lock handling. By utilizing both the synchronous switch point defined in SMPTE RP168, and the automatic video standards detect function, the device automatically re-synchronizes the flywheel at the switch point. This will occur whether or not the device has detected TRS word errors. Word alignment re-synchronization will also take place at this time. Automatic switch line lock handling will occur regardless of the setting of the FW_EN pin. The switch line is defined as follows: • • for 525 line interlaced systems: re-sync takes place at the end of lines 10 & 273 for 625 line interlaced systems: re-sync takes place at the end of lines 6 & 319 A full list of 270Mb/s video standards and switching lines is shown in Table 3-3. At every PCLK cycle the device samples the FW_EN pin. When the FW_EN pin is set LOW anywhere within the active line, the flywheel will re-synchronize immediately to the next TRS word. 3.6.3.2 Manual Switch Line Lock Handling The ability to manually re-synchronize the flywheel is also important when switching asynchronous sources or to implement other non-standardized video switching functions. To account for the horizontal disturbance caused by a synchronous switch, it is necessary to re-synchronize the flywheel immediately after the switch has taken place. Rapid re-synchronization of the GS9090B to the new video standard can be achieved by disabling the flywheel (setting the FW_EN pin to logic LOW) after the switch, and re-enabling the flywheel after the next TRS word. Table 3-3: Switch Line Position for 270MB/s Digital Systems System Video Format Sampling Signal Standard BT.656 125M 125M BT.656 Parallel Interface BT.656 + 305M 125M + 305M 125M 125M Serial Interface Switch Line Number 6, 319 10, 273 10, 273 6, 319 SDTI 720x576/50 (2:1) 720x483/59.94 (2:1) 4:2:2 4:2:2 4:2:2 4:2:2 259M-C 259M-C 259M-C 259M-C 525 625 720x483/59.94 (2:1) 720x576/50 (2:1) GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 28 of 72 3.6.4 HVF Timing Signal Generation The GS9090B extracts timing parameters, and outputs them to the F, V and H pins, from either the received TRS signals (FW_EN = LOW) or from the internal flywheel-timing generator (FW_EN = HIGH). Horizontal blanking period (H), vertical blanking period (V), and field odd / even timing (F) are extracted and are available for output on any of the multi-function output port pins, if so programmed (see Section 3.12). The H signal timing is configurable via the H_CONFIG bit of the internal IOPROC_DISABLE register as either active line-based blanking, or TRS-based blanking (see Table 3-14 in Section 3.9.8). Active line-based blanking is enabled when the H_CONFIG bit is set LOW. In this mode, the H output is HIGH for the entire horizontal blanking period, including the EAV and SAV TRS words. This is the default H timing used by the device. When H_CONFIG is set HIGH, TRS based blanking is enabled. In this case, the H output will be HIGH for the entire horizontal blanking period as indicated by the H bit in the received TRS ID words. The timing of these signals is shown in Figure 3-3. NOTE 1: When the internal FIFO is configured for video mode, the H, V, and F signals will be timed to the data output from the FIFO (see Section 3.10.1). NOTE 2: When the GS9090B is configured for Low-latency mode, the H, V, and F output timing will be TRS-based as shown in Section 3.13. Active line-based timing is not available in this mode, and the setting of the H_CONFIG host interface bit will be ignored. PCLK Y/Cr/Cb DATA OUT H V F 3FF 000 000 XYZ (eav) 3FF 000 000 XYZ (sav) H SIGNAL TIMING: H_CONFIG = LOW H_CONFIG = HIGH Figure 3-3: H,V,F Timing GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 29 of 72 3.7 DVB-ASI Functionality DVB_ASI functionality is only supported in Manual mode. In Manual mode, the DVB_ASI pin must be set to logic HIGH in order to enable DVB-ASI operation. The input SMPTE_BYPASS pin will be ignored but should not be left floating. When using DVB-ASI mode, the use of the application circuit in Figure 3-4 is required. The use of this application circuit will prevent the internal PLL from false locking to a DVB-ASI signal harmonic rather than the 270MHz fundamental. This application circuit will detect the false lock state and restart the on-chip PLL. The application circuit does this by detecting if the LOCKED pin has been de-asserted for longer than ~700μs, and if so resets the PLL by discharging the loop filter capacitor through a CMOS switch. The applications circuit below show how this can be implemented by using a STG719 switch as a reference. Other low leakage CMOS switches may also be substituted within the circuit. ST G719 1 6 5 LF+ LF- In 1 2 3 ST G719 6 5 4 S2 RESTART_PLL GS9090B GS9091B LOCKED D S1 OUT IN FPGA or Microcontroller GPIO Figure 3-4: GS9090B False Lock Restart Circuit The circuit above can be implemented using either a small state machine in an FPGA or general purpose I/O on a microcontroller in combination with some firmware. Typically, a system using the GS9090B will have an existing FPGA and/or microcontroller that may have some spare I/O that can be used to implement the false lock restart circuit. The choice of method will depend on what spare system resources are available. In either case, the waveform shown in Figure 3-5 on page 30 represents how the PLL restart must be driven. The delay values of 700μs and 20μs are nominal but the values can be longer. In the case where the SDI inputs are not driven with a valid DVB-ASI signal, the RESTART_PLL signal should be repeated indefinitely as long as LOCKED remains de-asserted. DDI POWER_OK LOCKED RESTART_PLL ~700μs ~20μs ~700μs ~20μs VALID DVB-ASI INPU T SIGNA L VALID DVB-ASI INPU T SIGNA L Figure 3-5: GS9090B False Lock Restart Circuit Waveforms of False Lock After Power-up and False Lock After a Signal Switch. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 30 of 72 3.7.1 DVB-ASI 8b/10b Decoding The GS9090B will word align the data to the K28.5 sync characters, and 8b/10b decode and bit-swap the data to achieve bit alignment with the data outputs. NOTE: DVB-ASI sync words must be immediately followed by an MPEG packet header for word alignment to correctly function. The extracted 8-bit data will be presented to DOUT [7:0], bypassing all internal SMPTE mode data processing. 3.7.2 Status Signal Outputs In DVB-ASI mode, the DOUT9 and DOUT8 pins will be configured as DVB-ASI status signals WORDERR and SYNCOUT respectively. SYNCOUT will be HIGH whenever a K28.5 sync character is present on the output. WORDERR will be HIGH whenever the device has detected an illegal 8b/10b code word or there is a running disparity error. 3.8 Data-Through Functionality The GS9090B may be configured to operate as a simple serial-to-parallel converter. In this mode, the data is output to the parallel output without performing any decoding, descrambling, or word-alignment. Data-Through functionality is enabled when the AUTO/MAN, SMPTE_BYPASS, and DVB_ASI input pins are set to logic LOW. Under these conditions, the GS9090B allows 270Mb/s input data not conforming to SMPTE or DVB-ASI streams to be reclocked and deserialized. If the device is in Data-Through mode, and the reclocker locks to the data stream, the LOCKED pin will be representative of the serial digital input data frequency. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 31 of 72 3.9 Additional Processing Features The GS9090B contains additional processing features that are available in SMPTE mode only (see Section 3.6). 3.9.1 FIFO Load Pulse To aid in the implementation of auto-phasing and line synchronization functions, the GS9090B will generate a FIFO load pulse to reset line-based FIFO storage. This FIFO_LD signal is available for output on one of the multi-function output port pins, if so programmed (see Section 3.12). The FIFO_LD pulse is an active LOW signal which will assert LOW for one PCLK period, generating a FIFO write reset signal. This signal is co-timed to the SAV XYZ code word present on the output data bus. This ensures that the next PCLK cycle will correspond with the first active sample of the video line. NOTE: When the internal FIFO of the GS9090B is set to operate in video mode, the FIFO_LD pulse can be used to drive the RD_RESET input to the device (see Section 3.10.1). Figure 3-6 shows the default timing relationship between the FIFO_LD signal and the output video data. PCLK Y'CbCr DATA FIFO_LD 3FF 000 000 XYZ Figure 3-6: FIFO_LD Pulse Timing 3.9.1.1 Programmable FIFO Load Position The position of the FIFO_LD pulse can be moved in PCLK increments from its default position at the SAV XYZ code word to a maximum of one full line from the default position. The offset number of PCLK's must be programmed in the FIFO_LD_POSITION[12:0] internal register (address 28h), via the host interface. The FIFO_LD_POSITION[12:0] register is designed to accommodate the longest SD line length. If a value greater than the maximum line length at the operating SD standard is programmed in this register, the FIFO_LD pulse will not be generated. After a device reset, the FIFO_LD_POSITION[12:0] register is set to zero and the FIFO_LD pulse will assume the default timing. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 32 of 72 3.9.2 Ancillary Data Detection and Indication The GS9090B will detect all types of ancillary data in either the vertical or horizontal data spaces. The ANC status signal is provided to indicate the position of ancillary data in the output data stream. This signal is available for output on the multi-function output port pins (see Section 3.12). The ANC status signal is synchronous with PCLK and can be used as a clock enable to external logic, or as a write enable to an external FIFO or other memory device. The ANC signal will be asserted HIGH whenever ancillary data is detected in the video data stream (see Figure 3-7). Both 8-bit and 10-bit ancillary data preambles will be detected by the GS9090B. NOTE: When the internal FIFO is configured for video mode, the ANC signal will be timed to the data output from the FIFO (see Section 3.10.1). PCLK Y'CbCr DATA 000 3FF 3FF DID DBN DC ANC DATA ANC DATA CSUM BLANK ANC Figure 3-7: ANC Status Signal 3.9.2.1 Programmable Ancillary Data Detection The GS9090B will detect all types of ancillary data by default. In addition, up to five different ancillary data types can be programmed for detection. This is accomplished by programming the ANC_TYPE registers with the DID and/or SDID values, via the host interface, for each data type to be detected (see Table 3-4). The GS9090B will compare the received DID and/or SDID with the programmed values and assert ANC only if an exact match is found. If the DID or SDID values are set to zero in the ANC_TYPE register, a comparison or match for that codeword will not be made. For example, if the DID is programmed but the SDID is set to zero, the device will detect all ancillary data types matching the DID value, regardless of the SDID. If both DID and SDID values are non-zero, then the received ancillary data type must match both the DID and SDID cases before the device will assert ANC HIGH. In the case where all five DID and SDID values are set to zero, the GS9090B will detect all ancillary data types. This is the default setting after a device reset. If greater than one, but less than five, DID and/or SDID values have been programmed, then only those matching ancillary data types will be detected and indicated. NOTE: See SMPTE 291M for a definition of ancillary data terms. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 33 of 72 Table 3-4: Host Interface Description for Programmable Ancillary Data Type registers Register Name ANC_TYPE 1 Address: 0Ah Bit 15-8 Name ANC_TYPE1[15:8] Description Used to program the DID for ancillary data detection at ANC output Used to program the SDID for ancillary data detection at ANC output. Should be set to zero if no SDID is present in the ancillary data packet to be detected. Used to program the DID for ancillary data detection at ANC output Used to program the SDID for ancillary data detection at ANC output. Should be set to zero if no SDID is present in the ancillary data packet to be detected. Used to program the DID for ancillary data detection at ANC output Used to program the SDID for ancillary data detection at ANC output. Should be set to zero if no SDID is present in the ancillary data packet to be detected. Used to program the DID for ancillary data detection at ANC output Used to program the SDID for ancillary data detection at ANC output. Should be set to zero if no SDID is present in the ancillary data packet to be detected. Used to program the DID for ancillary data detection at ANC output Used to program the SDID for ancillary data detection at ANC output. Should be set to zero if no SDID is present in the ancillary data packet to be detected. R/W R/W Default 0 7-0 ANC_TYPE1[7:0] R/W 0 ANC_TYPE 2 Address: 0Bh 15-8 ANC_TYPE2[15:8] R/W 0 7-0 ANC_TYPE2[7:0] R/W 0 ANC_TYPE 3 Address: 0Ch 15-8 ANC_TYPE3[15:8] R/W 0 7-0 ANC_TYPE3[7:0] R/W 0 ANC_TYPE 4 Address: 0Dh 15-8 ANC_TYPE4[15:8] R/W 0 7-0 ANC_TYPE4[7:0] R/W 0 ANC_TYPE 5 Address: 0Eh 15-8 ANC_TYPE5[15:8] R/W 0 7-0 ANC_TYPE5[7:0] R/W 0 3.9.3 EDH Packet Detection The GS9090B will determine if EDH packets are present in the incoming video data and assert the EDH_DETECT output status signal appropriately. EDH_DETECT will be set HIGH when EDH packets have been detected and will remain HIGH until EDH packets are no longer present. The signal will be set LOW at the end of the vertical blanking (falling edge of V) if an EDH packet has not been received and detected during vertical blanking. EDH_DETECT can be programmed to be available for output on the multi-function output port pins (see Section 3.12). The EDH_DETECT bit is also available in the DATA_FORMAT register at address 04h (see Table 3-7). GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 34 of 72 3.9.4 EDH Flag Detection As described in Section 3.9.3, the GS9090B can detect EDH packets in the received data stream. The EDH flags for ancillary data, active picture, and full field areas are extracted from the detected EDH packets and placed in the EDH_FLAG_IN register at address 02h (Table 3-5). When the EDH_FLAG_UPDATE bit in the DATA_FORMAT register 04h (Table 3-7) is set HIGH, the GS9090B will update the ancillary data, full field, and active picture EDH flags according to SMPTE RP165. The updated EDH flags are available in the EDH_FLAG_OUT register at address 03h (Table 3-6). The EDH packet output from the device will contain the updated flags. One set of flags is provided for both fields 1 and 2. Field 1 flag data will be overwritten by field 2 flag data. When EDH packets are not detected, the UES flags in the EDH_FLAG_OUT register will be set HIGH to signify that the received signal does not support Error Detection and Handling. In addition, the EDH_DETECT bit will be set LOW. These flags are set regardless of the setting of the EDH_FLAG_UPDATE bit. EDH_FLAG_OUT and EDH_FLAG_UPDATE may be read by the host interface at any time during the received frame except on the lines defined in SMPTE RP165, where these flags are updated. The GS9090B will indicate the CRC validity for both active picture and full field CRCs. The AP_CRC_V bit in the DATA_FORMAT register indicates the active picture CRC validity, and the FF_CRC_V bit indicates the full field CRC validity (see Table 3-7). When EDH_DETECT = LOW, these bits will be cleared. The EDH_FLAG_OUT and EDH_FLAG_UPDATE register values remain set until overwritten by the decoded flags in the next received EDH packet in the following field. When an EDH packet is not detected during vertical blanking, the flag registers will be cleared at the end of the vertical blanking period. Table 3-5: Host Interface Description for EDH Flag Registers Register Name EDH_FLAG_IN Address: 02h 14 13 12 11 10 9 8 7 ANC-UES_IN ANC-IDA_IN ANC-IDH_IN ANC-EDA_IN ANC-EDH_IN FF-UES_IN FF-IDA_IN FF-IDH_IN Ancillary Unknown Error Status Flag Ancillary Internal device error Detected Already Flag. Ancillary Internal device error Detected Here Flag. Ancillary Error Detected Already Flag. Ancillary Error Detected Here Flag. Full Field Unknown Error Status Flag. Full Field Internal device error Detected Already Flag. Full Field Internal device error Detected Here Flag. R R R R R R R R 0 0 0 0 0 0 0 0 Bit 15 Name – Description Not Used R/W – Default – GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 35 of 72 Table 3-5: Host Interface Description for EDH Flag Registers (Continued) Register Name Bit 6 5 4 3 Name FF-EDA_IN FF-EDH_IN AP-UES_IN AP-IDA_IN Description Full Field Error Detected Already Flag. Full Field Error Detected Here Flag. Active Picture Unknown Error Status Flag. Active Picture Internal device error Detected Already Flag. Active Picture Internal device error Detected Here Flag Active Picture Error Detected Already Flag. Active Picture Error Detected Here Flag. R/W R R R R Default 0 0 0 0 2 AP-IDH_IN R 0 1 0 AP-EDA_IN AP-EDH_IN R R 0 0 Table 3-6: Host Interface Description for EDH Flag Registers Register Name EDH_FLAG_OUT Address: 03h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 Name – ANC-UES ANC-IDA ANC-IDH ANC-EDA ANC-EDH FF-UES FF-IDA FF-IDH FF-EDA FF-EDH AP-UES AP-IDA Description Not Used Ancillary Unknown Error Status Flag Ancillary Internal device error Detected Already Flag. Ancillary Internal device error Detected Here Flag. Ancillary Error Detected Already Flag. Ancillary Error Detected Here Flag. Full Field Unknown Error Status Flag. Full Field Internal device error Detected Already Flag. Full Field Internal device error Detected Here Flag. Full Field Error Detected Already Flag. Full Field Error Detected Here Flag. Active Picture Unknown Error Status Flag. Active Picture Internal device error Detected Already Flag. Active Picture Internal device error Detected Here Flag Active Picture Error Detected Already Flag. Active Picture Error Detected Here Flag. R/W – R R R R R R R R R R R R Default – 0 0 0 0 0 0 0 0 0 0 0 0 2 AP-IDH R 0 1 0 AP-EDA AP-EDH R R 0 0 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 36 of 72 Table 3-7: Host Interface Description for Data Format Register Register Name DATA_FORMAT Address: 04h Bit Name Description R/W Default 15-12 11 – EDH_FLAG_UPDATE Not Used When set HIGH, the device will update the ancillary data, full field, and active picture EDH flags according to SMPTE RP165. Active Picture CRC Valid bit. Full Field CRC Valid bit. Set HIGH by the device when EDH packets are detected in the incoming video data. Indicates whether decoded SMPTE 352M packet is version 0 or version 1. See Section 3.9.5. Not Used Standard Lock bit. This bit will be set HIGH when the flywheel has achieved full synchronization to the received video standard. See Section 3.9.6. Displays the data format being carried on the serial digital interface. See Section 3.9.6.1. – R/W – 0 10 9 8 AP_CRC_V FF_CRC_V EDH_DETECT R R R 0 0 0 7 VERSION_352M R 0 6-5 4 – STD_LOCK – R – 0 3-0 DATA_FORMAT[3:0] R 0 3.9.5 SMPTE 352M Payload Identifier The GS9090B can receive and detect the presence of the SMPTE 352M payload identifier. Upon detection of this packet, the device will extract the four words contained in the packet to the VIDEO_FORMAT_OUT_A and VIDEO_FORMAT_OUT_B registers at addresses 10h and 0fh (Table 3-8). The device will also indicate the version of the payload packet in bit 7 of the DATA_FORMAT register (Table 3-7). When bit 7 is set HIGH the received SMPTE 352M packet is version 1, otherwise it is version 0. The VIDEO_FORMAT registers will only be updated if the received checksum is the same as the locally calculated checksum. If the device loses lock to the input data stream (LOCKED = LOW), or if the SMPTE_BYPASS pin is asserted LOW, the VIDEO_FORMAT_OUT_A and VIDEO_FORMAT_OUT_B registers will be cleared to zero, indicating an undefined format. This is also the default setting after a device reset. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 37 of 72 Table 3-8: Host Interface Description for SMPTE 352M Payload Identifier Registers Register Name VIDEO_FORMAT_OUT_B Address: 10h Bit 15-8 Name SMPTE 352M Byte 4 Description Data will be available in this register when Video Payload Identification Packets are detected in the data stream. Data will be available in this register when Video Payload Identification Packets are detected in the data stream. Data will be available in this register when Video Payload Identification Packets are detected in the data stream. Data will be available in this register when Video Payload Identification Packets are detected in the data stream. R/W R Default 0 7-0 SMPTE 352M Byte 3 R 0 VIDEO_FORMAT_OUT_A Address: 0Fh 15-8 SMPTE 352M Byte 2 R 0 7-0 SMPTE 352M Byte 1 R 0 3.9.6 Automatic Video Standard and Data Format Detection The GS9090B can detect the input video standard and data format by using the timing parameters extracted from the received TRS ID. Total samples per line, active samples per line, total lines per frame, and active lines per field are all calculated and presented to the host interface via the RASTER_STRUCTURE registers (Table 3-9). Also associated with the RASTER_STRUCTURE registers is the STD_LOCK status bit. The GS9090B will set STD_LOCK HIGH when the flywheel has achieved full synchronization to the received video standard. STD_LOCK is stored in the DATA_FORMAT register (Table 3-7). The four RASTER_STRUCTURE registers, as well as the STD_LOCK status bit will default to zero after a device reset, or if the device loses lock to the input data stream (LOCKED = LOW). Table 3-9: Host Interface Description for Raster Structure Registers Register Name RASTER_STRUCTURE1 Address: 11h RASTER_STRUCTURE2 Address: 12h RASTER_STRUCTURE3 Address: 13h RASTER_STRUCTURE4 Address: 14h Bit 15-11 10-0 15-13 12-0 15-13 12-0 15-11 10-0 Name – RASTER_STRUCTURE1[10:0] – RASTER_STRUCTURE2[12:0] – RASTER_STRUCTURE3[12:0] – RASTER_STRUCTURE4[10:0] Description Not Used Total Lines Per Frame Not Used Total Words Per Line Not Used Words Per Active Line Not Used Active Lines Per Field R/W – R – R – R – R Default – 0 – 0 – 0 – 0 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 38 of 72 3.9.6.1 Data Format Indication The GS9090B can extract the data format being carried on the serial digital interface (i.e. SDTI, SDI, or DVB-ASI). This information is represented by bits 0 to 3 of the DATA_FORMAT register (Table 3-7). DATA_FORMAT[3:0] register codes are shown in Table 3-10. The DATA_FORMAT[3:0] register defaults to Fh (undefined) after a system reset. The register will also be set to its default value if the device is not locked (LOCKED = LOW), or if both SMPTE_BYPASS and DVB_ASI pins are LOW. Table 3-10: Data Format Register Codes Data Format[3:0] 0h 1h 2h 3h 4h 5h 6h 7h 8h ~ Eh Fh Data Format SDTI DVCPRO - No ECC SDTI DVCPRO - ECC SDTI DVCAM SDTI CP Other SDTI fixed block size Other SDTI variable block size SDI DVB-ASI Reserved Unknown data format Applicable Standards SMPTE 321M SMPTE 321M SMPTE 322M SMPTE 326M – – – – – – 3.9.7 Error Detection and Indication The GS9090B contains a number of error detection functions to enhance operation of the device when operating in SMPTE mode. These functions, except lock error detection, will not be available in DVB-ASI mode (Section 3.7) or Data-Through mode (Section 3.8). The ERROR_STATUS register is at address 01h (Table 3-11). All bits, except the LOCK_ERR bit, will be cleared at the start of each video field or when read by the host interface, whichever condition occurs first. All bits, with the exception of the LOCK_ERR, will also be cleared if a change in the video standard is detected, if the device loses lock to the input data stream (LOCKED = LOW), or if the SMPTE_BYPASS pin is asserted LOW. The ERROR_STATUS register, including the LOCK_ERR bit, will be set LOW during a system reset (RESET = LOW). GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 39 of 72 The ERROR_MASK register (Table 3-12) is available to indivudally mask each error type in the ERROR_STATUS register. Each error type may be individually masked by setting its corresponding bit HIGH. The bits of the ERROR_MASK register will default to '0' after a device reset, thus allowing all error types to be detected. The DATA_ERROR signal pin indicates the status of the ERROR_STATUS register. This output pin is an inverted logical OR of each error status flag stored in the ERROR_STATUS register. DATA_ERROR will be set LOW by the device when an error condition that has not been masked is detected. Table 3-11: Host Interface Description for Error Status Register Register Name ERROR_STATUS Address: 01h Bit 15-7 6 Name – VD_STD_ERR Description Not Used Video Standard Error Flag. Set HIGH when a mismatch between the received SMPTE 352M packets (version 1 or version 0) and the calculated video standard occurs. Full Field CRC Error Flag. Set HIGH when a Full Field (FF) CRC mismatch has been detected in Field 1 or 2 Active Picture CRC Error Flag. Set HIGH when an Active Picture (AP) CRC mismatch has been detected in Field 1 or 2. Lock Error Flag. Set HIGH whenever the LOCKED pin is LOW (indicating the device is not correctly locked). Checksum Error Flag. Set HIGH when ancillary data packet checksum error has been detected. Start of Active Video Error Flag. Set HIGH when TRS errors are detected in either 8-bit or 10-bit TRS words. End of Active Video Error Flag. Set HIGH when TRS errors are detected in either 8-bit or 10-bit TRS words. R/W – R Default – 0 5 FF_CRC_ERR R 0 4 AP_CRC_ERR R 0 3 LOCK_ERR R 0 2 CS_ERR R 0 1 SAV_ERR R 0 0 EAV_ERR R 0 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 40 of 72 Table 3-12: Host Interface Description for Error Mask Register Register Name ERROR_MASK Address: 25h Bit 15-7 6 5 4 3 2 1 0 Name – VD_STD_ERR_MASK FF_CRC_ERR_MASK AP_CRC_ERR_MASK LOCK_ERR_MASK CS_ERR_MASK SAV_ERR_MASK EAV_ERR_MASK Description Not Used Video Standard Error Flag Mask bit. Full Field CRC Error Flag Mask bit. Active Picture CRC Error Flag Mask bit Lock Error Flag Mask bit. Checksum Error Flag Mask bit. Start of Active Video Error Flag Mask bit. End of Active Video Error Flag Mask bit. R/W – R/W R/W R/W R/W R/W R/W R/W Default – 0 0 0 0 0 0 0 3.9.7.1 Video Standard Error Detection If a mismatch between the decoded SMPTE 352M packets and the calculated video standard occurs, the GS9090B will indicate a video standard error by setting the VD_STD_ERR bit of the ERROR_STATUS register HIGH. The device will detect errors in both version 1 and version 0 352M packets. 3.9.7.2 EDH CRC Error Detection The GS9090B calculates the Full Field (FF) and Active Picture (AP) CRC words according to SMPTE RP165 in support of Error Detection and Handling packets in SD signals. These calculated CRC values are compared with the received CRC values. If a mismatch is detected, the error is flagged in the AP_CRC_ERR and/or FF_CRC_ERR bits of the ERROR_STATUS register. These two flags are shared between fields 1 and 2. The AP_CRC_ERR bit will be set HIGH when an active picture CRC value mismatch has been detected in field 1 or 2. The FF_CRC_ERR bit will be set HIGH when a full field CRC value mismatch has been detected in field 1 or 2. EDH CRC errors will only be indicated when the device has correctly received EDH packets. SMPTE RP165 specifies the calculation ranges and scope of EDH data for standard 525 and 625 component digital interfaces. The GS9090B will utilize these standard ranges by default. If the received video format does not correspond to 525 or 625 digital component video standards as determined by the flywheel pixel and line counters, the ranges will be based on the line and pixel ranges programmed by the host interface. In the absence of user-programmed calculation ranges, the ranges will be determined from the received TRS timing information. The registers available to the host interface for programming EDH calculation ranges include active picture and full field line/pixel start and end positions for both fields (Table 3-13). These registers default to '0' after a device reset. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 41 of 72 If any or all of these register values are zero, then the EDH CRC calculation ranges will be determined from the flywheel generated timing. The first active and full field pixel will always be the first pixel after the SAV TRS code word. The last active and full field pixel will always be the last pixel before the start of the EAV TRS code words. Table 3-13: Host Interface Description for EDH Calculation Range Registers Register Name AP_LINE_START_F0 Address: 15h Bit 15-11 10-0 Name – AP_LINE_START_F0[10:0] Description Not Used Field 0 Active Picture start line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 0 Active Picture end line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Active Picture start line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Active Picture end line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 0 Full Field start line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 0 Full Field end line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Full Field start line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Full Field end line data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 0 Active Picture start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. R/W – R/W Default – 0 AP_LINE_END_F0 Address: 16h 15-11 10-0 – AP_LINE_END_F0[10:0] – R/W – 0 AP_LINE_START_F1 Address: 17h 15-11 10-0 – AP_LINE_START_F1[10:0] – R/W – 0 AP_LINE_END_F1 Address: 18h 15-11 10-0 – AP_LINE_END_F1[10:0] – R/W – 0 FF_LINE_START_F0 Address: 19h 15-11 10-0 – FF_LINE_START_F0[10:0] – R/W – 0 FF_LINE_END_F0 Address: 1Ah 15-11 10-0 – FF_LINE_END_F0[10:0] – R/W – 0 FF_LINE_START_F1 Address: 1Bh 15-11 10-0 – FF_LINE_START_F1[10:0] – R/W – 0 FF_LINE_END_F1 Address: 1Ch 15-11 10-0 – FF_LINE_END_F1[10:0] – R/W – 0 AP_PIXEL_START_F0 Address: 1Dh 15-13 12-0 – AP_PIXEL_START_F0[12:0] – R/W – 0 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 42 of 72 Table 3-13: Host Interface Description for EDH Calculation Range Registers (Continued) Register Name AP_PIXEL_END_F0 Address: 1Eh Bit 15-13 12-0 Name – AP_PIXEL_END_F0[12:0] Description Not Used Field 0 Active Picture end pixel data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Active Picture start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Active Picture end pixel data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 0 Full Field start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 0 Full Field end pixel data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Full Field start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. Not Used Field 1 Full Field end pixel data used to set EDH calculation range outside of SMPTE RP 165 values. R/W – R/W Default – 0 AP_PIXEL_START_F1 Address: 1Fh 15-13 12-0 – AP_PIXEL_START_F1[12:0] – R/W – 0 AP_PIXEL_END_F1 Address: 20h 15-13 12-0 – AP_PIXEL_END_F1[12:0] – R/W – 0 FF_PIXEL_START_F0 Address: 21h 15-13 12-0 – FF_PIXEL_START_F0[12:0] – R/W – 0 FF_PIXEL_END_F0 Address: 22h 15-13 12-0 – FF_PIXEL_END_F0[12:0] – R/W – 0 FF_PIXEL_START_F1 Address: 23h 15-13 12-0 – FF_PIXEL_START_F1[12:0] – R/W – 0 FF_PIXEL_END_F1 Address: 24h 15-13 12-0 – FF_PIXEL_END_F1[12:0] – R/W – 0 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 43 of 72 3.9.7.3 Lock Error Detection The LOCKED pin of the GS9090B asserts HIGH when the device has correctly locked to the received data stream (see Section 3.5.1). The GS9090B will also indicate lock error to the host interface when LOCKED = LOW by setting the LOCK_ERR bit in the ERROR_STATUS register HIGH (Table 3-11). 3.9.7.4 Ancillary Data Checksum Error Detection The GS9090B will calculate checksums for all received ancillary data types and compare the calculated values to the received checksum words. If a mismatch is detected, the CS_ERR bit of the ERROR_STATUS register will be set HIGH (Table 3-11). Although the GS9090B will calculate and compare checksum values for all ancillary data types by default, the host interface may be programmed to check only certain types of ancillary data checksums, as described in Section 3.9.2.1. 3.9.7.5 TRS Error Detection TRS error flags are generated by the GS9090B when the received TRS H timing does not correspond to the internal flywheel timing, or when the received TRS Hamming codes are incorrect. These errors are flagged via the SAV_ERR and/or EAV_ERR bits of the ERROR_STATUS register (Table 3-11). Both 8-bit and 10-bit SAV and EAV errors are handled by the GS9090B. NOTE: H timing based TRS errors will only be detected if the FW_EN pin is set HIGH. F & V timing errors are not detected or corrected. 3.9.8 Additional Processing Functions The GS9090B contains an additional processing block which is available in SMPTE mode only. The IOPROC_EN pin must be set HIGH to enable these functions. These functions, which are all enabled by default, may be enabled or disabled individually by setting bits 0 to 3 in the IOPROC_DISABLE register (Table 3-14). NOTE: After a device reset, these functions will revert to their default values. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 44 of 72 Table 3-14: Host Interface Description for Internal Processing Disable Register Register Name IOPROC_DISABLE Address: 00h Bit 15-10 9 Name – ANC_PKT_EXT Description Not Used Ancillary Packet Extraction. When the FIFO is configured for Ancillary Data Extraction mode, this bit must be set HIGH to begin extraction. NOTE: Setting ANC_PKT_EXT LOW will not automatically disable ancillary data extraction (see Section 3.10.3.1). R/W – R/W Default – 0 8-7 FIFO_MODE[1:0] FIFO Mode: These bits control which mode the internal FIFO is operating in (see Table 3-15) Horizontal sync timing output configuration. Set LOW for active line blanking timing. Set HIGH for H blanking based on the H bit setting of the TRS word. See Figure 3-3 in Section 3.6.4. Not Used. R/W 0 6 H_CONFIG R/W 0 5-4 3 ILLEGAL_REMAP Illegal Code re-mapping. Correction of illegal code words within the active picture. Set HIGH to disable. The IOPROC_EN pin must be set HIGH. Error Detection & Handling (EDH) Cyclical Redundancy Check (CRC) error correction insertion. Set HIGH to disable. The IOPROC_EN pin must be set HIGH. Ancillary Data Checksum insertion. Set HIGH to disable. The IOPROC_EN pin must be set HIGH. Timing Reference Signal Insertion. The device will correct TRS based errors when set LOW (see Section 3.9.8.4). The IOPROC_EN pin must also be HIGH. Set this bit HIGH to disable. R/W 0 2 EDH_CRC_INS R/W 0 1 ANC_CSUM_INS R/W 0 0 TRS_INS R/W 0 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 45 of 72 3.9.8.1 Illegal Code Remapping If the ILLEGAL_REMAP bit of the IOPROC_DISABLE register is set LOW, the GS9090B will remap all codes within the active picture between the values 3FCh and 3FFh to 3FBh. All codes within the active picture area between the values 00h and 03h will be re-mapped to 04h. In addition, 8-bit TRS and ancillary data preambles will be remapped to 10-bit values. 3.9.8.2 EDH CRC Error Correction If the EDH_CRC_INS bit of the IOPROC_DISABLE register is set LOW, the GS9090B will calculate and overwrite the active picture and full field CRC words into the EDH data packets received by the device. Additionally, when EDH_CRC_INS is LOW, the device will set the active picture and full field CRC ‘V’ bits HIGH in the EDH packet (see Section 3.9.4). The AP_CRC_V and FF_CRC_V register bits will only report the received EDH validity flags. EDH CRC calculation ranges are described in Section 3.9.7.2. NOTE: Although the GS9090B will modify and insert EDH CRC words and EDH packet checksums, the device will only update EDH error flags when the EDH_FLAG_UPDATE bit is set HIGH (see Section 3.9.4). 3.9.8.3 Ancillary Data Checksum Error Correction If the ANC_CSUM_INS bit of the IOPROC_DISABLE register is set LOW, ancillary checksum error correction and insertion is enabled, and the GS9090B will calculate and overwrite ancillary data checksums for all ancillary data words by default. If the Ancillary Data type has been specified in the ANC_TYPE registers of the host interface (see Section 3.9.2.1), only the checksums for the ancillary data programmed will be updated. 3.9.8.4 TRS Error Correction If the TRS_INS bit of the IOPROC_DISABLE register is set LOW, TRS error correction and insertion is enabled. In this mode, the GS9090B will calculate and overwrite 10-bit TRS code words as required. TRS code word generation will be performed using the timing parameters generated by the flywheel to provide an element of noise immunity, and will only take place if the flywheel in enabled (FW_EN = HIGH). NOTE: Only H timing based errors will be corrected (see Section 3.9.7.5). GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 46 of 72 3.10 Internal FIFO Operation The GS9090B contains an internal video line-based FIFO, which can be programmed to work in any of the following modes: 1. Video Mode, 2. DVB-ASI Mode, 3. Ancillary Data Extraction Mode, or 4. Bypass Mode The FIFO can be configured to one of the four modes by using the host interface to set the FIFO_MODE[1:0] bits of the IOPROC_DISABLE register (see Table 3-14 in Section 3.9.8). The setting of these bits is shown in Table 3-15. To enable the FIFO, the FIFO_EN pin must be set HIGH. Additionally, if the FIFO is configured for video mode or ancillary data extraction mode, the IOPROC_EN pin must be set HIGH. The FIFO is fully asynchronous, allowing simultaneous read and write access. It has a depth of 2048 words, which will accommodate 1 full line of SD video for both 525 and 625 standards. The FIFO is 15 bits wide: 10 bits for video data and 5 bits for other signals, such as H, V, F, EDH_DETECT, and ANC. Table 3-15: FIFO Configuration Bit Settings FIFO_MODE[1:0] Register Setting 00b 01b 10b 11b FIFO Mode Video Mode DVB-ASI Mode Ancillary Data Extraction Mode Bypass Mode FIFO_EN Pin Setting HIGH HIGH HIGH X IOPROC_EN Pin Setting HIGH X HIGH X NOTE: ‘X’ signifies ‘don’t care’. The pin is ignored and may be set HIGH or LOW. 3.10.1 Video Mode The internal FIFO is in video mode when the FIFO_EN and IOPROC_EN pins are set HIGH, and the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register are configured to 00b. By default, the FIFO_MODE[1:0] bits are set to 00b by the device whenever the SMPTE_BYPASS pin is set HIGH and the DVB_ASI pin is set LOW (i.e. the device is in SMPTE mode); however, the FIFO_MODE[1:0] bits may be programed as required. Figure 3-8 shows the input and output signals of the FIFO when it is configured for video mode. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 47 of 72 Internal Application Interface 10-bit Video Data 10-bit Video Data H V F ANC EDH_DETECT FIFO (Video Mode) H V F ANC EDH_DETECT WR_RESET WR_CLK (PCLK) RD_RESET RD_CLK Figure 3-8: FIFO in Video Mode When operating in video mode, the GS9090B will write data sequentially into the FIFO, starting with the first active pixel in location zero of the memory. In this mode, it is possible to use the FIFO for clock phase interchange and data alignment / delay. The extracted H, V, and F information will also be written into the FIFO. The H, V, and F outputs will be timed to the video data read from the FIFO. (see Section 3.6.4). The device will ensure write-side synchronization is maintained, according to the extracted PCLK and flywheel timing information. Full read-control of the FIFO is made available such that data will be clocked out of the FIFO on the rising edge of the externally provided RD_CLK signal. When there is a HIGH-to-LOW transition at the RD_RESET pin, the first pixel presented to the video data bus will be the first 000 of the SAV (see Figure 3-9). The FIFO_LD pulse may be used to control the RD_RESET pin. NOTE: The RD_RESET pulse should not be held LOW for more than one RD_CLK cycle. RD_CLK Y'CbCr DATA RD_RESET 3FF 000 000 XYZ Figure 3-9: RD_RESET Pulse Timing In video mode, the ANC output signal will be timed to the data output from the FIFO (see Section 3.9.2 for more detail). 3.10.2 DVB-ASI Mode The internal FIFO is in DVB-ASI mode when the FIFO_EN pin is set HIGH, and the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register are configured to 01b. By default, the FIFO_MODE[1:0] bits are set to 01b by the device whenever the DVB_ASI GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 48 of 72 pin is set HIGH (i.e. the device is in DVB-ASI mode); however, the FIFO_MODE[1:0] bits may be programed as required. Figure 3-10 shows the input and output signals of the FIFO when it is configured for DVB-ASI Mode. Internal 8-bit MPEG Data Application Interface 8-bit MPEG Data WORDERR SYNCOUT FIFO (DVB-ASI Mode) WORDERR SYNCOUT FIFO_EMPTY FIFO_FULL WR_CLK (PCLK gated with SYNCOUT) RD_CLK Figure 3-10: FIFO in DVB-ASI Mode When operating in DVB-ASI mode, the GS9090B's FIFO can be used for clock rate interchange operation. The extracted 8-bit MPEG packets will be written into the FIFO at 27MHz based on the SYNCOUT signal from the internal DVB-ASI decoder block. The SYNCOUT and WORDERR bits are also stored in the FIFO (see Section 3.7.2). When SYNCOUT goes HIGH, K28.5 stuffing characters have been detected and no data will be written into the FIFO. Data is read out of the FIFO using the RD_CLK pin. In DVB-ASI mode, the RD_RESET pin is not used. NOTE: With the internal FIFO enabled in DVB-ASI mode, SYNCOUT will always be LOW since the K28.5 sync characters are not stored in the FIFO. 3.10.2.1 Reading From the FIFO The FIFO contains internal read and write pointers used to designate which spot in the FIFO the MPEG packet will be read from or written to. These internal pointers control the status flags FIFO_EMPTY and FIFO_FULL, which are available for output on the multi-function output port pins, if so programmed (see Section 3.12). In the case where the write pointer is originally ahead of the read pointer, the FIFO_EMPTY flag will be set HIGH when both pointers arrive at the same address (see block A in Figure 3-12). This flag can be used to determine when to stop reading from the device. A write and read pointer offset may be programmed in the FIFO_EMPTY_OFFSET[9:0] register of the host interface. If an offset value is programmed in this register, the FIFO_EMPTY flag will be set HIGH when the read and write pointers of the FIFO are at the same address, and will remain HIGH until the write pointer reaches the programmed GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 49 of 72 offset. Once the pointer offset has been exceeded, the FIFO_EMPTY flag will go LOW (see block B in Figure 3-12). In the case where the read pointer is originally ahead of the write pointer, the FIFO_FULL flag will be set HIGH when both pointers arrive at the same address (see block C in Figure 3-12). This flag can be used to determine when to begin reading from the device. A read and write pointer offset may also be programmed in the FIFO_FULL_OFFSET[9:0] register of the host interface. If an offset value is programmed in this register, the FIFO_FULL flag will be set HIGH when the read and write pointers of the FIFO are at the same address, and will remain set HIGH until the read pointer reaches the programmed offset. Once the pointer offset has been exceeded, the FIFO_FULL flag will be cleared (see block D in Figure 3-12). Gating the RD_CLK Using the FIFO_EMPTY Flag Using the asynchronous FIFO_EMPTY flag to gate RD_CLK requires external clock gating circuity. The recommended circuit for this application is shown in Figure 3-11. FIFO_EMPTY D SET Q D SET Q D SET Q RD_CLK CR L Q CR L Q CR L Q GATED RD_CLK RD_CLK FIFO_EMPTY GATED RD_CLK Figure 3-11: Recommended Circuit to Gate RD_CLK Using the FIFO_EMPTY Flag GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 50 of 72 A Read Pointer Exmple 1: FIFO Empty Flag Operation when FIFO_EMPTY[9:0] = 0h B Read Pointer Exmple 2: FIFO Empty Flag Operation when FIFO_EMPTY[9:0] = 3FFh 1023 2047 Address Address 0 2047 0 FIFO FIFO Write Pointer FIFO_EMPTY FIFO_EMPTY Write Pointer C Read Pointer Exmple 3: FIFO Full Flag Operation when FIFO_FULL[9:0] = 0h D Exmple 4: FIFO Full Flag Operation when FIFO_FULL[9:0] = 3FFh Read Pointer Address Address 5 2047 0 1023 2047 FIFO Write Pointer Write Pointer FIFO_FULL FIFO_FULL Figure 3-12: Reading From the FIFO in DVB-ASI Mode GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 51 of 72 3.10.3 Ancillary Data Extraction Mode The internal FIFO is in ancillary data extraction mode when the FIFO_EN and IOPROC_EN pins are set HIGH, and the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register are configured to 10b. Once the FIFO enters ancillary data extraction mode, it takes 2200 PCLKs (82us) to initialize the FIFO before ancillary data extraction can begin. In this mode, the FIFO is divided into two separate blocks of 1024 words each. This allows ancillary data to be written to one side of the FIFO and from the other. Thus, in each half of the FIFO, the GS9090B will write the contents of the packets up to a maximum of 1024 8-bit words. As described in Section 3.9.2.1, up to five specific types of ancillary data to be extracted can be programmed in the ANC_TYPE registers. If the ANC_TYPE registers are all set to zero, the device will extract all types of ancillary data. The entire packet, including the ancillary data flag (ADF), data identification (DID), secondary data identification (SDID), data count (DC), and checksum word will be written into the memory. The device will detect ancillary data packet DID's placed anywhere in the video data stream, including the active picture area. Additionally, the lines from which the packets are to be extracted from can be programmed into the ANC_LINE_A[10:0] and ANC_LINE_B[10:0] registers, allowing ancillary data from a maximum of two lines per frame to be extracted. If only one line number register is programmed (with the other set to zero), ancillary data packets will be extracted from one line per frame only. When both registers are set to zero, the device will extract packets from all lines. The extracted ancillary data is read through the host interface starting at address 02Ch up to 42Bh inclusive (1024 words). This must be done while there is a valid video signal present at the serial input and the device is locked (LOCKED = HIGH). 3.10.3.1 Ancillary Data Extraction and Reading To start ancillary data extraction, the ANC_PKT_EXT bit of the IOPROC_DISABLE register must be set HIGH (see Table 3-14 in Section 3.9.8). Packet extraction will begin in the following frame after this bit has been set HIGH. NOTE: Ancillary data extraction will not begin until 2200 PCLKs (82us) after the device has entered into ancillary data extraction mode (FIFO_MODE[1:0] = 10b), regardless of the setting of the ANC_PKT_EXT bit. When the FIFO is configured for ancillary data extraction mode, setting the IOPROC_EN pin LOW will disable packet extraction. If IOPROC_EN is LOW, the setting of the ANC_PKT_EXT host interface bit will be ignored. Clearing the ANC_PKT_EXT bit will not automatically disable ancillary data extraction. To disable ancillary data extraction, switch the FIFO into bypass mode by setting FIFO_MODE[1:0] = 11b. 2200 PCLK cycles after the device re-enters ancillary data extraction mode, data extraction will commence immediately if ANC_PKT_EXT is still HIGH. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 52 of 72 The ANC output flag available on the I/O output pin (see Section 3.12) can be used to determine the length of the ancillary data extracted and when to begin reading the extracted data from memory. Recall that ANC is HIGH whenever ancillary data has been detected. In addition, the data count (DC) word, which is located three words after the ancillary data flag (ADF) in the memory, can be read to determine how many valid user data words (UDW) are present in the extracted packet (see SMPTE 291M for more details). The DC value can then be used to preset how many address reads must be performed to obtain only the user data words. Ancillary data will be written into the first half of the FIFO until it is full or until the ANC_DATA_SWITCH bit is toggled (i.e. a HIGH-to-LOW or LOW-to-HIGH transition). If the ANC_DATA_SWITCH bit is not toggled, extracted data will not be written into memory after the first half of the FIFO is full (see block A in Figure 3-13). When the ANC_DATA_SWITCH bit is toggled, new extracted data will be written to the second half starting at address zero (see block B in Figure 3-13). The data in the first half of the FIFO may still be read. Once the data in the first half of the FIFO has been read, the ANC_DATA_SWITCH may be toggled again to enable the second half of the FIFO to be read. The first half of the FIFO will be cleared, and the device will continue to write ancillary data to the second half of the FIFO (see block C in Figure 3-13). If the ANC_DATA_SWITCH bit is toggled again, new extracted data will be written to the first half starting at address zero (see block D in Figure 3-13). The data in the second half of the FIFO may still be read. Toggling ANC_DATA_SWITCH again will clear the second half of the FIFO and restore the read and write pointers to the situation shown in block A. The switching process (shown in blocks A to D in Figure 3-13) will continue with each toggle of the ANC_DATA_SWITCH bit. NOTE: At least 1100 PCLK cycles (41us) must pass between toggles of the ANC_DATA_SWITCH bit. Also, the ANC_DATA_SWITCH bit must be toggled at a point in the video where no extraction is occurring (i.e. the ANC signal is LOW). By default, the ancillary data is not removed from the video stream. If desired, the ancillary data may be deleted from the video stream after extraction by setting the ANC_DATA_DELETE bit of the host interface HIGH. In this case, all existing ancillary data will be removed and replaced with blanking values. If any of the ANC_TYPE registers are programmed with a DID and/or a DID and SDID, only the ancillary data packets with the matching ID's will be deleted from the video stream. NOTE: After the ancillary data determined by the ANC_TYPE registers has been deleted, other existing ancillary data may not be contiguous. The device will not concatenate the remaining ancillary data. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 53 of 72 A Application layer read pointer 0 ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA 0 B Application layer read pointer 0 ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA Internal write pointer 0 Internal write pointer 1023 ANC_DATA_SWITCH = LOW 1023 1023 ANC_DATA_SWITCH = HIGH 1023 ANC_DATA_SWITCH bit is toggled HIGH. New ancillary data is written to second half of FIFO starting at adress zero. Application layer continues to read from the first half of the FIFO. C 0 Application layer 0 read pointer ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA D Internal write pointer 0 %% Application layer read pointer 0 ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA ANC_DATA Internal write pointer ANC_DATA %% 1023 ANC_DATA_SWITCH = LOW 1023 1023 ANC_DATA_SWITCH = HIGH 1023 ANC_DATA_SWITCH toggled LOW. First half of FIFO cleared and ancillary data read from second half of FIFO. Device continues to write ancillary data to second half of FIFO. ANC_DATA_SWITCH bit is toggled HIGH. New ancillary data is written to first half of FIFO starting at address zero. Application layer continues to read from second half of FIFO. Toggling ANC_DATA_SWITCH back LOW will clear the second half of the FIFO and go back the situation depicted in box A. NOTE: At least 1100 PCLK cycles must pass between toggles of the ANC_DATA_SWITCH bit. The bit must be toggled at a point where no extraction is occuring (i.e. the ANC signal is LOW). Figure 3-13: Ancillary Data Extraction and Reading GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 54 of 72 3.10.4 Bypass Mode The internal FIFO is in bypass mode when the FIFO_EN or IOPROC_EN pin is set LOW, or the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register are configured to 11b. By default, the FIFO_MODE[1:0] bits are set to 11b by the device whenever both the SMPTE_BYPASS and DVB_ASI pins are LOW; however, the FIFO_MODE[1:0] bits may be programed as required. In bypass mode, the FIFO is not inserted into the video path and data is presented to the output of the device synchronously with the PCLK output. The FIFO will be disabled and placed in static mode to save power. 3.11 Parallel Data Outputs The parallel data outputs are clocked out of the device on the rising edge of PCLK as shown in Figure 3-14. tOH tOD PCLK 50% VOH DOUT[9:0] VOH VOL VOL CONTROL SIGNAL OUTPUT VOH VOL VOH VOL Figure 3-14: PCLK to Data & Control Signal Output Timing The output data format is defined by the settings of the external SMPTE_BYPASS and DVB_ASI pins (see Table 3-16). In Manual mode, these pins are set as inputs to the device. In Auto mode, the GS9090B sets the SMPTE_BYPASS pin as an output status signal. Table 3-16: Parallel Data Output Format Pin Settings Output Data Format 10-bit Data 10-bit Multiplexed SD 10-bit DVB-ASI DOUT[9:0] DATA Luma / Chroma DVB-ASI data SMPTE_BYPASS LOW HIGH LOW DVB_ASI LOW LOW HIGH GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 55 of 72 3.11.1 Parallel Data Bus Output Buffers The parallel data outputs of the GS9090B are driven by high-impedance buffers that support both LVTTL and LVCMOS levels. These buffers use either +1.8V or +3.3V, supplied at the IO_VDD and IO_GND pins. When interfacing with +5V logic levels, the IO_VDD pins should be supplied with +3.3V. For a low power connection, the IO_VDD pins may be connected to +1.8V. All output buffers, including the PCLK output, will be in a high-impedance state when the RESET signal is asserted LOW. 3.11.2 Parallel Output in SMPTE Mode When the device is operating in SMPTE mode (see Section 3.6), SMPTE data is output on the DOUT[9:0] pins. 3.11.3 Parallel Output in DVB-ASI Mode When operating in DVB-ASI mode (see Section 3.7), the decoded 8-bit data words will be presented on DOUT[7:0]. DOUT7 = HOUT is the most significant bit of the decoded transport stream data and DOUT0 = AOUT is the least significant bit. DOUT9 will be configured as the DVB-ASI status signal WORDERR and DOUT8 as SYNCOUT. See Section 3.7.2 for a description of these DVB-ASI specific output signals. 3.11.4 Parallel Output in Data-Through Mode When operating in Data-Through mode (see Section 3.8), the GS9090B presents data to the output data bus without performing any decoding, descrambling, or word-alignment. 3.12 Programmable Multi-Function Outputs The GS9090B has a 4-pin multi-function output port, STAT[3:0]. Each pin can be programmed to output one of the following signals: H, V, F, FIFO_LD, ANC, EDH_DETECT, FIFO_FULL, and FIFO_EMPTY. Table 3-17: Output Signals Available on Multi-Function Output Ports Output Status Signal H V F FIFO_LD ANC EDH_DETECT Reference Section 3.6.4 Section 3.6.4 Section 3.6.4 Section 3.9.1 Section 3.9.2 Section 3.9.3 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 56 of 72 Table 3-17: Output Signals Available on Multi-Function Output Ports FIFO_FULL FIFO_EMPTY Section 3.10.2.1 Section 3.10.2.1 Each of the STAT[3:0] pins can be configured individually using the STAT0_CONFIG[2:0], STAT1_CONFIG[2:0], STAT2_CONFIG[2:0], and STAT3_CONFIG[2:0] registers. Table 3-18 shows the setting of the IO_CONFIG registers for each of the available output signals. Table 3-18: IO_CONFIG Settings Function H V F FIFO_LD ANC EDH_DETECT FIFO_FULL FIFO_EMPTY I/O Output Output Output Output Output Output Output Output IO_CONFIG Setting 000b 001b 010b 011b 100b 101b 110b 111b The default setting for each IO_CONFIG register depends on the configuration of the device and the internal FIFO mode selected. This is shown in Table 3-19. If the programmed signal is not relevant to the current mode of operation, the output will be set to a high-impedance state. Table 3-19: IO_CONFIG Default Configuration Device Configuration IO_CONFIG Register STAT0_CONFIG STAT1_CONFIG STAT2_CONFIG STAT3_CONFIG DVB-ASI DVB_ASI = HIGH FIFO: DVB-ASI Mode STAT0_CONFIG STAT1_CONFIG STAT2_CONFIG STAT3_CONFIG I/O Function Default IO_CONFIG Setting 000b 001b 010b 011b 110b 111b 000b 000b SMPTE Functionality SMPTE_BYPASS = HIGH DVB_ASI = LOW FIFO: Video Mode or Ancillary Data Extraction Mode Output Output Output Output Output Output Output Output H V F FIFO_LD FIFO_FULL FIFO_EMPTY High Z High Z GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 57 of 72 Table 3-19: IO_CONFIG Default Configuration Device Configuration IO_CONFIG Register STAT0_CONFIG STAT1_CONFIG STAT2_CONFIG STAT3_CONFIG I/O Function Default IO_CONFIG Setting 000b 000b 000b 000b Data-Through SMPTE_BYPASS = LOW DVB_ASI = LOW Output Output Output Output High Z High Z High Z High Z 3.13 GS9090B Low-latency Mode When the IOPROC_EN pin is set LOW, the GS9090B will be set into low-latency mode. The parallel data will be output with the minimum PCLK latency possible. The FIFO and all processing blocks except the descrambling and word alignment blocks will be bypassed when SMPTE_BYPASS is HIGH. Low-latency mode will also be selected when SMPTE_BYPASS is set LOW, regardless of the setting of the IOPROC_EN signal (see Table 3-20). In DVB-ASI mode, the device latency is less than in SMPTE mode. Table 3-20: Pin Settings in Low-latency Mode IOPROC_EN Setting LOW HIGH LOW HIGH SMPTE_BYPASS Setting LOW LOW HIGH HIGH Latency (PCLK Cycles) 9 10 10 25 NOTE: Latency applies to parallel processing core only. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 58 of 72 When the GS9090B is configured for low-latency mode, the H,V, and F output timing will be based on the incoming TRS codes as shown in Figure 3-15. Active line-based timing is not available and the setting of the H_CONFIG host interface bit will be ignored. PCLK Y/Cr/Cb DATA OUT H V F 3FF 000 000 XYZ (eav) 3FF 000 000 XYZ (sav) Figure 3-15: H,V,F Timing In Low-latency Mode 3.14 GSPI Host Interface The GSPI, or Gennum Serial Peripheral Interface, is a 4-wire interface provided to allow access to the host interface of the GS9090B and/or to provide additional status information through configuration registers in the device. The GSPI comprises a serial data input signal SDIN, serial data output signal SDOUT, an active low chip select CS, and a burst clock SCLK. The burst clock must have a duty cycle between 40% and 60%. Because these pins are shared with the JTAG interface port, an additional control signal pin JTAG/HOST is provided. When JTAG/HOST is LOW, the GSPI interface is enabled. When operating in GSPI mode, the SCLK, SDIN, and CS signals are provided by the application interface. The SDOUT pin is a non-clocked loop-through of SDIN and may be connected to the SDIN of another device, allowing multiple devices to be connected to the GSPI chain. The interface is illustrated in Figure 3-16. Application Host GS9090B SCLK CS1 SDOUT SCLK CS SDIN SDOUT GS9090B SCLK CS2 CS SDIN SDIN SDOUT Figure 3-16: GSPI Application Interface Connection GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 59 of 72 All read or write access to the GS9090B is initiated and terminated by the host processor. Each access always begins with a 16-bit command word on SDIN indicating the address of the register of interest. This is followed by a 16-bit data word on SDIN in write mode, or a 16-bit data word on SDOUT in read mode. 3.14.1 Command Word Description The command word consists of a 16-bit word transmitted MSB first and contains a read/write bit, an Auto-Increment bit and a 12-bit address. Figure 3-17 shows the command word format and bit configurations. Command words are clocked into the GS9090B on the rising edge of the serial clock SCLK, which operates in a burst fashion. When the Auto-Increment bit is set LOW, each command word must be followed by only one data word to ensure proper operation. If the Auto-Increment bit is set HIGH, the following data word will be written into the address specified in the command word, and subsequent data words will be written into incremental addresses from the previous data word. This facilitates multiple address writes without sending a command word for each data word. Auto-Increment may be used for both read and write access. 3.14.2 Data Read and Write Timing Read and write mode timing for the GSPI interface is shown in Figure 3-19 and Figure 3-20 respectively. The timing parameters are defined in Table 3-21. When several devices are connected to the GSPI chain, only one CS must be asserted during a read sequence. During the write sequence, all command and following data words input at the SDIN pin are output at the SDOUT pin as is. Where several devices are connected to the GSPI chain, data can be written simultaneously to all the devices that have CS set LOW. Table 3-21: GSPI Timing Parameters Parameter t0 t1 t2 t3 t4 Definition The minimum duration of time chip select, CS, must be LOW before the first SCLK rising edge. The minimum SCLK period. Duty cycle tolerated by SCLK. Minimum input setup time. Write Cycle: the minimum duration of time between the last SCLK command (or data word if the Auto-Increment bit is HIGH) and the first SCLK of the data word. Specification 1.5 ns 12.5 ns 40% to 60% 1.5 ns 37.1 ns GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 60 of 72 Table 3-21: GSPI Timing Parameters (Continued) Parameter t5 Definition Read Cycle: the minimum duration of time between the last SCLK command (or data word if the Auto-Increment bit is HIGH) and the first SCLK of the data word. Read Cycle - FIFO in ANC Extraction Mode: the minimum duration of time between the last SCLK command (or data word if the Auto-Increment bit is HIGH) and the first SCLK of the data word. Minimum output hold time. The minimum duration of time between the last SCLK of the GSPI transaction and when CS can be set HIGH. Minimum input hold time. Specification 148.4 ns t5 222.6 ns t6 t7 t8 1.5 ns 37.1 ns 1.5 ns MSB R/W RSV LSB RSV AutoInc A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 RSV = Reserved. Must be set to zero. R/W: Read command when R/W = 1 Write command when R/W = 0 Figure 3-17: Command Word Format MSB D15 LSB D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Figure 3-18: Data Word Format t5 SCLK CS t6 R/W RSV RSV AutoInc A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 SDIN SDOUT R/W RSV RSV AutoInc A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Figure 3-19: GSPI Read Mode Timing GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 61 of 72 t0 SCLK t1 t4 t7 CS t3 R/W RSV RSV AutoInc A11 A10 t2 A9 A8 A7 t8 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 SDIN SDOUT R/W RSV RSV AutoInc A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Figure 3-20: GSPI Write Mode Timing GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 62 of 72 3.14.3 Configuration and Status Registers Table 3-22 summarizes the GS9090B's internal status and configuration registers. All of these registers are available to the host via the GSPI and are all individually addressable. Where status registers contain less than the full 16 bits of information, two or more registers may be combined at a single logical address. Table 3-22: GS9090B Internal Registers Address 00h 01h 02h 03h 04h 05h 06h 07h 08h - 0Eh 11h - 14h 15h - 24h 25h 28h 02Ch - 42Bh Register Name IOPROC_DISABLE ERROR_STATUS EDH_FLAG_IN EDH_FLAG_OUT DATA_FORMAT IO_CONFIG FIFO_EMPTY_OFFSET FIFO_FULL_OFFSET ANC_TYPE RASTER_STRUCTURE EDH_CALC_RANGES ERROR_MASK FIFO_LD_POSITION INTERNAL FIFO Reference Section 3.9.8 Section 3.9.7 Section 3.9.4 Section 3.9.4 Section 3.9.6.1 Section 3.12 Section 3.10.2.1 Section 3.10.2.1 Section 3.9.2 Section 3.9.6 Section 3.9.7.2 Section 3.9.7 Section 3.9.1.1 Section 3.10.3 3.15 JTAG Operation When the JTAG/HOST pin is set HIGH, the host interface port (as described in Section 3.14) will be configured for JTAG test operation. In this mode, pins 16, 17, 19, and 20 become TMS, TCK, TDO, and TDI respectively. In addition, the RESET pin will operate as the test reset pin, as well as resetting the internal registers. Boundary scan testing using the JTAG interface will be possible in this mode. There are two methods in which JTAG can be used on the GS9090B: 1. As a stand-alone JTAG interface to be used at in-circuit ATE (Automatic Test Equipment) during PCB assembly; or 2. Under control of the host for applications such as system power self tests. When the JTAG tests are applied by ATE, care must be taken to disable any other devices driving the digital I/O pins. If the tests are to be applied only at ATE, this can be GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 63 of 72 accomplished with tri-state buffers used in conjunction with the JTAG/HOST input signal. This is shown in Figure 3-21. Alternatively, if the test capabilities are to be used in the system, the host may still control the JTAG/HOST input signal, but some means for tri-stating the host must exist in order to use the interface at ATE. This is represented in Figure 3-22. Application HOST GS9090B CS_TMS SCLK_TCK SDIN_TDI SDOUT_TDO JTAG_EN In-circuit ATE probe Figure 3-21: In-Circuit JTAG Application HOST GS9090B CS_TMS SCLK_TCK SDIN_TDI SDOUT_TDO Tri-State In-circuit ATE probe JTAG_EN Figure 3-22: System JTAG 3.16 Device Power Up The GS9090B has a recommended power supply sequence. To ensure correct power up, power the CORE_VDD pins before the IO_VDD pins. In order to initialize all internal operating conditions to their default state the RESET pin must be held LOW for a minimum of treset = 1ms. (See Figure 3-23) Device pins can be driven prior to power up without causing damage. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 64 of 72 CORE_VDD +1.71V +1.8V treset RESET Reset treset Reset Figure 3-23: Reset pulse GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 65 of 72 4. References & Relevant Standards SMPTE 125M SMPTE 259M Component video signal 4:2:2 – bit parallel interface 10-Bit 4:2:2 Component and 4fSC Composite Digital Signals - Serial Digital Interface Ancillary Data Packet and Space Formatting 720 x 483 active line at 59.94 Hz progressive scan production – digital representation Serial Data Transport Interface Video Payload Identification for Digital Television Interfaces Error Detection Checkwords and Status Flags for Use in Bit-Serial Digital Interfaces for Television Definition of Vertical Interval Switching Point for Synchronous Video Switching SMPTE 291M SMPTE 293M SMPTE 305.2M SMPTE 352M SMPTE RP165 SMPTE RP168 GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 66 of 72 5. Application Information 5.1 Typical Application Circuit (Part A) CD MUTE EQ_VCC EQ_VCC 16 10n SDI 6.2n EQ_GND 1u 75 EQ_GND 1u 3 SDI 2 SDI 1 VEE_A 15 14 13 MUTE VCC_D VCC_A CD 10n VEE_D 12 EQ_GND SDO 11 SDO GS9074A SDO 10 SDO MCLADJ EQ_GND 5 AGC AGC 75 37R4 BYPASS 4 VEE_A VEE_D 9 EQ_GND 6 7 8 MCLADJ 470n EQ_GND 470n EQ_GND BYPASS NOTE: All resistors in Ohms, capacitors in Farads, and inductors in Henrys, unless otherwise noted. NOTE: For up-to-date component values and detailed operation of the equalizer, please see the GS9074A data sheet. GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 67 of 72 5.2 Typical Application Circuit (Part B) +1.8V 10n DATA_ERRORb GND_D 1u +1.8V _A 0 0 DVB_ASI SMPTE_BYPASSb (NP) +1.8V_A 1u 100k 100n 10n GND_A GND_A GND_A 10n GND_D +1.8V IOPROC_EN AUTO_MANb FW_EN FIFO_EN (NP) FIFO_EN FW_EN AUTO_MANb SMPTE_BYPASSb LOCKED JTAG_HOSTb RESETb GND_D PCLK DVB_ASI LOCKED GND_A +3.3V 0 IO_VDD NP (0) 4n7 56 55 54 53 52 51 50 49 48 47 46 45 44 43 10n 1u NP GND_A +1.8V_A GND_A GND_A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 LFPLL_GND PLL_VDD BUFF_VDD DDI DDI BUFF_GND TERM NC VBG NC IOPROC_EN JTAG/HOST RESET LF+ VCO_GND LB_CONT VCO_VDD FIFO_EN FW_EN AUTO/MAN SMPTE_BYPASS CORE_GND DVB_ASI LOCKED CORE_VDD PCLK IO_VDD (NP) 1u 10n GND_D DATA[9..0] 1u DDI DDIb 1u EQ_GND EQ_GND GND_A IOPROC_EN JTAG_HOSTb RESETb 10n 1u GS9090B IO_GND DOUT9 DOUT8 DOUT7 DOUT6 DOUT5 DOUT4 DOUT3 DOUT2 DOUT1 DOUT0 RD_RESET RD_CLK IO_VDD 42 41 40 39 38 37 36 35 34 33 32 31 30 29 DOUT9 DOUT8 DOUT7 DOUT6 DOUT5 DOUT4 DOUT3 DOUT2 DOUT1 DOUT0 RD_RESETb RD_CLK IO_VDD CORE_VDD CS_TMS SCLK_TCK CORE_GND SDOUT_TDO SDIN_TDI IO_VDD DATA_ERROR STAT0 IO_GND STAT1 STAT2 STAT3 IO_GND 10n 15 16 17 18 19 20 21 22 23 24 25 26 27 28 1u +1.8V 10n GND_D GND_D (NP) (NP) (NP) DATA_ERRORb GND_D STAT3 STAT2 STAT1 STAT0 IO_VDD (NP) (NP) (NP) GND_D IO_VDD 1u 10n GND_D 100K 100K 100K SCLK_TCK SDIN_TDI SDOUT_TDO CSb_TMS GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 68 of 72 6. Package & Ordering Information 6.1 Package Dimensions GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 69 of 72 6.2 Recommended PCB Footprint 0.50 0.25 0.55 7.70 6.76 CENTER PAD NOTE: All dimensions are in millimeters. 6.76 7.70 The Center Pad of the PCB footprint should be connected to the CORE_GND plane by a minimum of 25 vias. NOTE: Suggested dimensions only. Final dimensions should conform to customer design rules and process optimizations. 6.3 Packaging Data Parameter Package Type Package Drawing Reference Moisture Sensitivity Level Junction to Case Thermal Resistance, θj-c Junction to Air Thermal Resistance, θj-a (at zero airflow) Psi, Ψ Pb-free and RoHS compliant Value 8mm x 8mm 56-pin QFN JEDEC M0220 3 12.2°C/W 25.8°C/W 9.1°C/W Yes GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 70 of 72 Pin Pin 1 ID GS9090B XXXXE3 YYWW Instructions : GS9090B XXXX Package Mark Last 4 digits (excluding decimal) of SAP Batch Assembly (FIN) as listed on Packing Slip Date Code Pb free and Green indicator YYWW E3 Figure 6-1: Package marking 6.4 Ordering Information Part Number GS9090BCNE3 Package 56-pin QFN Temperature Range 0oC to 70oC GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 71 of 72 DOCUMENT IDENTIFICATION CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION DATA SHEET The product is in production. 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Sinyi District, Taipei City 11502 Taiwan R.O.C. Phone: (886) 2-8732-8879 Fax: (886) 2-8732-8870 KOREA 8F, Jinnex Lakeview Bldg. 65-2, Bangidong, Songpagu Seoul, Korea 138-828 Phone: +82-2-414-2991 Fax: +82-2-414-2998 Gennum Corporation assumes no liability for any errors or omissions in this document, or for the use of the circuits or devices described herein. The sale of the circuit or device described herein does not imply any patent license, and Gennum makes no representation that the circuit or device is free from patent infringement. All other trademarks mentioned are the properties of their respective owners. GENNUM and the Gennum logo are registered trademarks of Gennum Corporation. © Copyright 2006 Gennum Corporation. All rights reserved. Printed in Canada. www.gennum.com GS9090B GenLINX® III 270Mb/s Deserializer for SDI Data Sheet 40749 - 5 May 2010 72 of 72 72