GS9092A_10

GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Key Features • • • • SMPTE 259M-C compliant scrambling and NRZI to NRZ encoding (with bypass) DVB-ASI sync word insertion and 8b/10b encoding Integrated Cable Driver Integrated line-based FIFO for data alignment/delay, clock phase interchange, DVB-ASI data packet insertion, and ancillary data packet insertion User selectable additional processing features including: ANC data checksum, and line number calculation and insertion TRS and EDH packet generation and insertion illegal code remapping • • • • • • • Enhanced Gennum Serial Peripheral Interface (GSPI) JTAG test interface +1.8V internal cable driver and core power supply Optional +1.8V or +3.3V digital I/O power supply Small footprint (8mm x 8mm) Low power operation (typically 200mW) Pb-free and RoHS compliant Description The GS9092A is a 270Mb/s serializer with an internal FIFO and an integrated cable driver. It contains all the necessary blocks to realize a transmit solution for SD-SDI and DVB-ASI applications. In addition to serializing the input data stream, the GS9092A performs NRZI-to-NRZ encoding and scrambling as per SMPTE 259M-C when operating in SMPTE mode. When operating in DVB-ASI mode, the device will insert K28.5 sync characters and 8b/10b encode the data prior to serialization. Parallel data inputs are provided for 10-bit multiplexed formats at SD signal rates. A 27MHz parallel clock input signal is also required. The integrated cable driver features an adjustable signal swing and common mode operating point offering fully compliant SMPTE 259M-C cable driver connectivity. The GS9092A includes a range of data processing functions such as automatic standards detection and EDH support. The device can also insert TRS signals, re-map illegal code words, and generate and insert SMPTE 352M payload identifier packets. All processing features are optional and may be enabled/disabled via external control pin(s) and/or host interface programming. The GS9092A also incorporates a video line-based FIFO. This FIFO may be used in four user-selectable modes to carry out tasks such as data delay, clock phase interchange, MPEG packet insertion and clock rate interchange, and ancillary data packet insertion. The device may also be used as a low-latency parallel-to-serial converter where the SMPTE scrambling block will be the only processing feature enabled. The GS9092A is Pb-free, and the encapsulation compound does not contain halogenated flame retardant (RoHS compliant). • Applications • • SMPTE 259M-C Serial Digital Interfaces DVB-ASI Serial Digital Interfaces GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 www.gennum.com 1 of 63 GS9092A Functional Block Diagram SMPTE_BYPASS DETECT_TRS IOPROC_EN Figure A: GS9092A Functional Block Diagram GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 WR_RESET STAT[2:0] LB_CONT FIFO WR_CLK DVB_ASI BLANK PCLK RSV LF+ LF- Programmable I/O PLL TRS Insertion Data Blank Code Remap & Flywheel DVB-ASI Sync Word Insert & 8b/10b Encode SMPTE 352M Generation EDH Generation & SMPTE Scramble bypass dvb_asi SDO_EN SDO P --> S SDO RSET HOST Interface & JTAG RESET FIFO_EN JTAG_EN CS_TMS SDOUT_TDO SCLK_TCK SDIN_TDI 2 of 63 Contents Key Features........................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................1 GS9092A Functional Block Diagram...........................................................................................................2 1. Pin Out...............................................................................................................................................................5 1.1 Pin Assignment ..................................................................................................................................5 1.2 Pin Descriptions ................................................................................................................................6 2. Electrical Characteristics ......................................................................................................................... 11 2.1 Absolute Maximum Ratings ....................................................................................................... 11 2.2 DC Electrical Characteristics ..................................................................................................... 11 2.3 AC Electrical Characteristics ..................................................................................................... 13 2.4 Solder Reflow Profiles .................................................................................................................. 15 2.5 Host Interface Maps ...................................................................................................................... 16 2.5.1 Host Interface Map (Read only registers) .................................................................. 18 2.5.2 Host Interface Map (R/W configurable registers) ................................................... 20 3. Detailed Description.................................................................................................................................. 22 3.1 Functional Overview .................................................................................................................... 22 3.2 Parallel Data Inputs ....................................................................................................................... 23 3.2.1 Parallel Input in SMPTE Mode....................................................................................... 24 3.2.2 Parallel Input in DVB-ASI Mode................................................................................... 24 3.2.3 Parallel Input in Data-Through Mode......................................................................... 24 3.2.4 I/O Buffers............................................................................................................................ 24 3.3 Internal FIFO Operation .............................................................................................................. 25 3.3.1 Video Mode ......................................................................................................................... 26 3.3.2 DVB-ASI Mode ................................................................................................................... 27 3.3.3 Ancillary Data Insertion Mode...................................................................................... 31 3.3.4 Bypass Mode ....................................................................................................................... 35 3.4 SMPTE Mode ................................................................................................................................... 35 3.4.1 I/O Status Signals............................................................................................................... 35 3.4.2 HVF Timing Signal Inputs............................................................................................... 35 3.5 DVB-ASI Mode ............................................................................................................................... 36 3.5.1 Control Signal Inputs........................................................................................................ 36 3.6 Data-Through Mode ..................................................................................................................... 37 3.7 Additional Processing Functions .............................................................................................. 37 3.7.1 Input Data Blank................................................................................................................ 37 3.7.2 Automatic Video Standard Detection......................................................................... 37 3.7.3 Packet Generation and Insertion.................................................................................. 38 3.8 Parallel-to-Serial Conversion .................................................................................................... 48 3.9 Serial Digital Data PLL ................................................................................................................. 48 3.10 Serial Digital Output .................................................................................................................. 49 3.10.1 Output Swing.................................................................................................................... 49 3.10.2 Serial Digital Output Mute Control ........................................................................... 49 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 3 of 63 3.10.3 Output Return Loss Measurement ............................................................................ 49 3.11 Programmable Multi-function I/O ........................................................................................ 51 3.12 Low Latency Mode ...................................................................................................................... 52 3.13 GSPI Host Interface ..................................................................................................................... 53 3.13.1 Command Word Description ...................................................................................... 54 3.13.2 Data Read and Write Timing ....................................................................................... 54 3.13.3 Configuration and Status Registers........................................................................... 56 3.14 JTAG Operation ........................................................................................................................... 57 3.15 Device Power Up ......................................................................................................................... 58 4. References & Relevant Standards ......................................................................................................... 58 5. Application Information .......................................................................................................................... 59 5.1 Typical Application Circuit ........................................................................................................ 59 6. Package & Ordering Information .......................................................................................................... 60 6.1 Package Dimensions ..................................................................................................................... 60 6.2 Recommended PCB Footprint ................................................................................................... 61 6.3 Packaging Data ............................................................................................................................... 61 6.4 Package Marking ........................................................................................................................... 62 6.5 Ordering Information ................................................................................................................... 62 Revision History .............................................................................................................................................. 62 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 4 of 63 1. Pin Out 1.1 Pin Assignment DETECT_TRS SMPTE_BYPASS CORE_GND VCO_GND VCO_VDD LB_CONT FIFO_EN CORE_VDD DVB_ASI BLANK LF+ LFPLL_GND 1 2 3 56 55 54 53 52 51 50 49 48 47 RSV 46 45 44 43 IO_VDD PCLK 42 41 IO_GND DIN9 (INSYNCIN) PLL_VDD 40 DIN8 (KIN) CD_VDD 4 39 38 37 36 35 DIN7 DIN6 DIN5 DIN4 DIN3 SDO SDO CD_GND 5 6 7 8 9 10 NC RSET VBG GS9092A XXXXE3 YYWW 34 33 32 DIN2 DIN1 DIN0 SDO_EN 11 GENNUM 16 17 18 19 20 21 IO_VDD IOPROC_EN 12 31 30 29 28 IO_GND WR_RESET WR_CLK JTAG/HOST RESET 13 14 15 22 23 24 IO_GND 25 STAT1 26 27 IO_VDD SDOUT_TDO CORE_VDD SDIN_TDI CS_TMS STAT0 RSV CORE_GND SCLK_TCK STAT2 Center Pad (bottom of package) Figure 1-1: Pin Assignment GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 RSV 5 of 63 1.2 Pin Descriptions Table 1-1: Pin Descriptions Pin Number 1 Name LF- Timing Analog Type Input Description Loop filter component connection. Connect to LF+ through a capacitor. See Typical Application Circuit on page 59. 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 serial digital cable driver. Connect to +1.8V DC Serial digital differential output pair. NOTE: these output signals will be forced into a mute state if RESET is LOW. 4 CD_VDD Analog Input Power 5, 6 SDO, SDO Analog Output 7 CD_GND Analog Input Power Ground connection for serial digital cable driver. Connect to GND. 8 9 NC RSET – Analog – Input No connect. An external 1% resistor connected between this input and CD_VDD is used to set the SDO / SDO output amplitude. Bandgap filter capacitor. Connect as shown in the Typical Application Circuit on page 59 CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible Used to enable or disable the serial digital output. When set LOW by the application layer, the serial digital output signals SDO and SDO are muted. When set HIGH by the application layer, the serial digital output signals are enabled. SDO and SDO outputs will also be high impedance when the RESET pin is LOW. 10 VBG Analog Input 11 SDO_EN Non Synchronous Input GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 6 of 63 Table 1-1: Pin Descriptions (Continued) Pin Number 12 Name IOPROC_EN Timing Non Synchronous Type Input Description 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: • SMPTE 352M Payload Identifier Packet Generation and Insertion • Illegal Code Remapping • EDH Generation and Insertion • Ancillary Data Checksum Insertion • TRS Generation and Insertion 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 this pin is set LOW, the device will enter low-latency mode. NOTE: When the internal FIFO is configured for video mode or ancillary data insertion mode, the IOPROC_EN pin must be set HIGH. 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. 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 ,SDO and SDO are muted, and all input signals become high impedance with the exception of the STAT pins which will be driven LOW. When set HIGH, normal operation of the device resumes 10usec after the LOW-to-HIGH transition of the RESET signal. 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: For power on reset requirements please see Device Power Up on page 58. 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 58. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 7 of 63 Table 1-1: Pin Descriptions (Continued) Pin Number 16 Name CS_TMS Timing Synchronous with SCLK_TCK Type Input Description 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. NOTE: If this pin is unused it should be pulled up to VCC_IO. 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 is 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. NOTE: If this pin is unused it should be pulled up to VCC_IO. 18, 48 CORE_GND Non Synchronous Input Power Output Ground connection for digital logic blocks. Connect to GND. 19 SDOUT_TDO Synchronous with SCLK_TCK 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. 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. NOTE: If this pin is unused it should be pulled up to VCC_IO. 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 58. 22, 27 R SV – – Reserved. Do Not Connect. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 8 of 63 Table 1-1: Pin Descriptions (Continued) Pin Number 23, 25, 26 Name STAT[2:0] Timing Synchronous with PCLK or WR_CLK Type Input/ Output Description MULTI FUNCTION I/O PORT Signal levels are LVCMOS / LVTTL compatible. Programmable multi-function I/O. By programming the bits in the IO_CONFIG register, each pin can act as an output for one of the following signals: •H •V •F • FIFO_FULL • FIFO_EMPTY Each pin may also act as an input for an external H, V, or F signal if the DETECT_TRS pin is set LOW by the application layer 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 I/O on page 51 for details. 24, 28, 42 IO_GND Non Synchronous Input Power Input Ground connection for digital I/O. Connect to GND. 30 WR_CLK FIFO WRITE CLOCK Signal levels are LVCMOS / LVTTL compatible. The application layer clocks the parallel data into the device on the rising edge of WR_CLK when the internal FIFO is configured for video mode or DVB-ASI mode. NOTE: If this pin is unused it should be pulled up to GND. 31 WR_RESET Synchronous with WR_CLK Input FIFO WRITE RESET Signal levels are LVCMOS / LVTTL compatible. Valid input only when the device is in SMPTE mode (SMPTE_BYPASS = HIGH, DVB-ASI = LOW) and the internal FIFO is configured for video mode (Video Mode on page 26). A HIGH to LOW transition will reset the FIFO write pointer to address zero of the memory. NOTE: If this pin is unused it should be pulled up to GND. 32 - 41 DIN[9:0] Synchronous with WR_CLK or PCLK Input 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 into the device on the rising edge of WR_CLK. When the internal FIFO is in bypass mode, parallel data will be clocked into the device on the rising edge of PCLK. DIN9 is the MSB and DIN0 is the LSB. 44 PCLK Input PIXEL CLOCK INPUT Signal levels are LVCMOS / LVTTL compatible. 27MHz parallel clock input. 46 RSV – – Reserved. Do Not Connect. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 9 of 63 Table 1-1: Pin Descriptions (Continued) Pin Number 47 Name DVB_ASI Timing Non Synchronous Type Input Description CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. When set HIGH by the application layer, the device will be configured for the transmission of DVB-ASI data.The setting of the SMPTE_BYPASS pin will be ignored. When set LOW by the application layer, the device will not support the encoding of DVB-ASI data. 49 SMPTE_BYPASS Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. When 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 set LOW, the device will not support the scrambling, encoding or packet insertion of received SMPTE data. No I/O processing features will be available and the device will enter a low-latency mode. 50 BLANK Synchronous with PCLK Input CONTROL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Functional only when chip is in SMPTE mode. When set LOW by the application layer, the luma and chroma input data is set to the appropriate blanking levels (TRS words will be unaltered at all times) When set HIGH by the application layer, the input data will pass into the device unaltered. 51 DETECT_TRS Non Synchronous Input CONTOL SIGNAL INPUT Signal levels are LVCMOS / LVTTL compatible. Used to select external H,V, and F timing mode or TRS extraction timing mode. When set LOW by the application layer, the device will extract all internal timing from the supplied H, V, and F timing signals. When set HIGH by the application layer, the device will extract all internal timing from the TRS signals embedded in the supplied video stream. The H, V, and F signals will become outputs that can be accessed via the STAT[2:0] pins. Both 8-bit and 10-bit TRS code words will be identified by the device. 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 into the device on the rising edge of the WR_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 into the device on the rising edge of the PCLK input. 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. 54 LB_CONT Analog GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 10 of 63 Table 1-1: Pin Descriptions (Continued) Pin Number 55 Name VCO_GND Timing Analog Type Input Power Input Description Ground connection for Voltage-Controlled-Oscillator. Connect to GND. Loop filter component connection. Connect to LF- through a capacitor. See Typical Application Circuit on page 59. Connect to GND following recommendations in Recommended PCB Footprint on page 61. 56 LF+ Analog – Center Pad – Power 2. Electrical Characteristics 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) NOTES: 1. HBM, per JESDA - 114B 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 500 V 2.2 DC Electrical Characteristics Table 2-1: DC Electrical Characteristics VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified. Parameter System Operating Temperature Range Core power supply voltage Digital I/O Buffer Power Supply Voltage Symbol Condition Min Typ Max Units Notes TA CORE_VDD IO_VDD IO_VDD – 0 25 70 °C 1 – 1.8V Operation 3.3V Operation 1.71 1.71 3.13 1.8 1.8 3.3 1.89 1.89 3.47 V V V – – – GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 11 of 63 Table 2-1: DC Electrical Characteristics (Continued) VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified. Parameter PLL Power Supply Voltage VCO Power Supply Voltage Serial Cable Driver Power Supply Voltage Typical System Power Symbol PLL_VDD VCO_VDD Condition – – Min 1.71 1.71 Typ 1.8 1.8 Max 1.89 1.89 Units V V Notes – – CD_VDD – 1.71 1.8 1.89 V – PD PD CORE_VDD = 1.80V IO_VDD = 1.80V CORE_VDD = 1.89V IO_VDD = 3.47V – 200 – mW – Max. System Power – – 300 mW – Digital I/O Input Voltage, Logic LOW VIL VIH VOL 1.8V or 3.3V Operation 1.8V 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 Output Voltage, Logic HIGH – 0.4 V – VOH IO_VDD 0.4 – – V – Serial Digital Outputs Output Common Mode Voltage Range Serial Driver Output Voltage Swing VCMOUT 1.8V Pull-Up Reference Voltage 1.8V Pull-up Reference Voltage, Single Ended 75Ω load Over cable driver voltage supply range. RSET = 281Ω (800mVp-p single ended output) – Output voltage variation from nominal (at 1.8V). RSET = 281Ω (800mVp-p single ended output) NOTES 1. All DC and AC electrical parameters within specification. 2. Set by the value of the RSET resistor. -5 – +5 % – – CD_VDD VODIFF – – V – VSDO 0 850 mVp-p 2 Output Voltage Variation From Nominal – -8.5 – +8.5 % – GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 12 of 63 2.3 AC Electrical Characteristics Table 2-2: AC Electrical Characteristics VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified. Parameter System Output High Impedance Response Time Symbol Condition Min Typ Max Units Notes tRHIGHZ SDO_EN = HIGH to LOW – 20 – ns – Digital I/O Input Data Setup Time tS U 50% PCLK vs. VIL/VIH data 50% PCLK vs. VIL/VIH data With 15pF load With 15pF load 3 – – ns 1 Input Data Hold Time tIH 1 – – ns 1 Output Data Hold Time Output Delay Time tOH tOD 3 – – – – 11 ns ns 2 2 Serial Digital Output Serial Output Data Rate Serial Output Jitter BRSDO – – 270Mb/s, VSDO = 800mV, 75Ω load including rise/fall mismatch, PCLK input from GS9090A PCLK input from the Agilent E4422B Signal Generator Return loss compensation recommended circuit - SMPTE 259M signal Return loss compensation recommended circuit - SMPTE 259M signal VODIFF = 1600mV, 100Ω differential load VODIFF = 1600mV, 100Ω differential load – – 270 360 – 555 Mb/s psp-p – 3 – – 225 – psp-p 3,4 Serial Output Rise Time (20% ~ 80%) SDOTR 400 500 1000 ps – Serial Output Fall Time (20% ~ 80%) SDOTF 400 500 1000 ps – Mismatch in Rise/Fall Time – – – 30 ps – Serial Output Overshoot – – 0 8 % – GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 13 of 63 Table 2-2: AC Electrical Characteristics (Continued) VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified. Parameter Output Return Loss Symbol ORL Condition @ 270Mb/s Using Gennum Evaluation board. Measured at the BNC with matching network. Including pin and bonding parasitics Min 15 Typ – Max – Units dB Notes 5, 6 Output Capacitance COUT – – 5 pF – GSPI GSPI Input Clock Frequency GSPI Clock Duty Cycle GSPI Setup Time GSPI Hold Time NOTES 1. Timing includes the following inputs: DIN[9:0], H, V, F, WR_CLK, WR_RESET, BLANK. When the FIFO is enabled, the following signals are measured with respect to WR_CLK: WR_RESET, DIN[9:0], INSSYNCIN, KIN. 2. Refers to when H, V, and F are output pins 3. 4. 5. 6. Measured using pseudorandom bit sequence (223-1) over full input voltage range. PCLK = 27MHz driven from the Agilent E4422B Signal Generator and serial output jitter measured using the Tektronix CSA8000 Oscilloscope. 5MHz to 270MHz. See ‘Output Return Loss Measurement” on page 49. fGSPI DCGSPI tGS tG H – – – – – 40 1.5 – – – – – 54.0 60 – 1.5 MHz % ns ns – – – – GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 14 of 63 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 60-150 sec. 20-40 sec. 260°C 250°C 3 °C/sec max 217°C 6°C/sec max 200°C 150°C 25°C Time 60-180 sec. max 8 min. max Figure 2-1: Maximum Pb-free Solder Reflow Profile (Preferred) Temperature 60-150 sec. 10-20 sec. 230°C 220°C 3 °C/sec max 183°C 6°C/sec max 150°C 100°C 25°C Time 120 sec. max 6 min. max Figure 2-2: Standard Eutectic Solder Reflow Profile GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 15 of 63 2.5 Host Interface Maps 15 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 VFO4-b7 VFO2-b7 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 VFO4-b6 VFO2-b6 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 VFO4-b5 VFO2-b5 b12 b12 b12 b12 b12 b12 b12 b12 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used b12 b12 Not Used VFO4-b4 VFO2-b4 b11 b11 b11 b11 b11 b11 b11 b11 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used b11 b11 Not Used VFO4-b3 VFO2-b3 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 VFO4-b2 VFO2-b2 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 VFO4-b1 VFO2-b1 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 VFO4-b0 VFO2-b0 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 VFO3-b7 VFO1-b7 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 VFO3-b6 VFO1-b6 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 VFO3-b5 VFO1-b5 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 VFO3-b4 VFO1-b4 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 VFO3-b3 VFO1-b3 14 Not Used Not Used Not Used 13 Not Used Not Used Not Used 12 Not Used Not Used Not Used 11 Not Used Not Used Not Used 10 b10 b10 b10 9 b9 b9 b9 8 b8 b8 b8 7 b7 b7 b7 6 b6 b6 b6 5 b5 b5 b5 4 b4 b4 b4 3 b3 b3 b3 2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 VFO3-b2 VFO1-b2 1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 VFO3-b1 VFO1-b1 0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 VFO3-b0 VFO1-b0 REGISTER NAME ANC_WORDS[10:0] 352M_LINE_2[10:0] 352M_LINE_1[10:0] FF_PIXEL_END_F1[12:0] 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] RASTER_STRUCTURE4[10:0] RASTER_STRUCTURE3[12:0] RASTER_STRUCTURE2[12:0] RASTER_STRUCTURE1[10:0] VIDEO_FORMAT_B VIDEO_FORMAT_A ANC_LINE_B[10:0] ANC_LINE_A[10:0] FIFO_FULL_OFFSET 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 10h 0Fh 0Eh 0Dh 0Ch 0Bh 0Ah 09h 08h 07h 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 b10 Not Used b9 b9 b9 b8 b8 b8 b7 b7 b7 b6 b6 b6 b5 b5 b5 b4 b4 b4 b3 b3 b3 b2 b2 b2 b1 b1 b1 b0 b0 b0 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 16 of 63 REGISTER NAME FIFO_EMPTY_OFFSET ADDRESS 06h 15 Not Used 14 Not Used 10 Not Used 9 b9 8 b8 7 b7 6 b6 5 b5 4 b4 3 b3 2 b2 1 b1 0 b0 IO_CONFIG Not Used Not Used Not Used Not Used 05h 13 ANC_ DATA_ RDBACK ANC_SAV 11 ANC_ DATA_ REPLACE Not Used VIDEO_STANDARD Not Used Not Used Not Used EDH_CRC_ UPDATE ANC-EDA Not Used Not Used ANC_PKT_ INS ANC-EDH FF-UES FF-IDA FF-IDH FF-EDA FF-EDH AP-UES Not Used Not Used 04h 12 ANC_ FIFO_ READY ANC_ DATA_ SWITCH Not Used STAT2_ CONFIG b2 Not Used STAT2_ CONFIG b1 Not Used STAT2_ CONFIG b0 Not Used STAT1_ CONFIG b2 Not Used STAT1_ CONFIG b1 STD_ LOCK AP-IDA STAT1_ CONFIG b0 Not Used STAT0_ CONFIG b2 Not Used STAT0_ CONFIG b1 Not Used STAT0_ CONFIG b0 Not Used EDH_FLAG Not Used Not Used Not Used Not Used Not Used ANC-UES ANC-IDA ANC-IDH AP-IDH EDH_CRC_ INS AP-EDA ANC_ CSUM_ INS AP-EDH TRS_IN IOPROC_DISABLE 03h 02h 01h 00h H_ 352M_ 352M_ ILLEGAL_ FIFO_ FIFO_ CONFIG CALC INS REMAP MODE MODE b0 b1 NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. These registers may be written to in Ancillary Data Insertion mode (see Section 3.3.3) GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 17 of 63 2.5.1 Host Interface Map (Read only registers) 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] b12 b12 b11 b11 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 10h 0Fh 0Eh 0Dh 0Ch 0Bh 0Ah 09h 08h 07h 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 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 18 of 63 REGISTER NAME FIFO_EMPTY_OFFSET ADDRESS 06h 15 14 13 12 ANC_ FIFO_ READY STD_ LOCK 11 10 9 8 7 6 5 4 3 2 1 0 VIDEO_STANDARD 03h 02h 01h 00h NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. These registers may be written to in Ancillary Data Insertion mode (see Section 3.3.3) 05h 04h GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 19 of 63 2.5.2 Host Interface Map (R/W configurable registers) 15 14 13 12 11 10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b10 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b8 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b7 b6 b6 b6 b6 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 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b4 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 b3 9 b9 b9 b9 8 b8 b8 b8 7 b7 b7 b7 6 b6 b6 b6 5 b5 b5 b5 4 b4 b4 b4 3 b3 b3 b3 2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 b2 1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 REGISTER NAME ANC_WORDS[10:0] 352M_LINE_2[10:0] 352M_LINE_1[10:0] b12 b12 b12 b12 b12 b12 b12 b12 b11 b11 b11 b11 b11 b11 b11 b11 FF_PIXEL_END_F1[12:0] 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] VIDEO_FORMAT_B VIDEO_FORMAT_A VFO4-b7 VFO2-b7 VFO4-b6 VFO2-b6 VFO4-b5 VFO2-b5 VFO4-b4 VFO2-b4 VFO4-b3 VFO2-b3 VFO4-b2 VFO2-b2 VFO4-b1 VFO2-b1 VFO4-b0 VFO2-b0 VFO3-b7 VFO1-b7 VFO3-b6 VFO1-b6 VFO3-b5 VFO1-b5 VFO3-b4 VFO1-b4 VFO3-b3 VFO1-b3 VFO3-b2 VFO1-b2 VFO3-b1 VFO1-b1 VFO3-b0 VFO1-b0 ANC_LINE_B[10:0] ANC_LINE_A[10:0] FIFO_FULL_OFFSET 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 10h 0Fh 0Eh 0Dh 0Ch 0Bh 0Ah 09h 08h 07h b10 b10 b9 b9 b9 b8 b8 b8 b7 b7 b7 b6 b6 b6 b5 b5 b5 b4 b4 b4 b3 b3 b3 b2 b2 b2 b1 b1 b1 b0 b0 b0 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 20 of 63 REGISTER NAME FIFO_EMPTY_OFFSET ADDRESS 06h 15 14 12 10 9 b9 8 b8 7 b7 6 b6 5 b5 4 b4 3 b3 2 b2 1 b1 0 b0 IO_CONFIG Not Used Not Used Not Used Not Used STAT2_ CONFIG b2 STAT2_ CONFIG b1 STAT2_ CONFIG b0 STAT1_ CONFIG b2 STAT1_ CONFIG b1 STAT1_ CONFIG b0 05h 13 ANC_ DATA_ RDBACK ANC_SAV STAT0_ CONFIG b2 11 ANC_ DATA_ REPLACE Not Used STAT0_ CONFIG b1 STAT0_ CONFIG b0 VIDEO_STANDARD Not Used Not Used Not Used EDH_CRC_ UPDATE ANC-EDA ANC_PKT_ INS ANC-EDH FF-UES FF-IDA FF-IDH FF-EDA FF-EDH AP-UES Not Used Not Used 04h ANC_ DATA_ SWITCH Not Used EDH_FLAG Not Used ANC-UES ANC-IDA ANC-IDH AP-IDA AP-IDH EDH_CRC_ INS AP-EDA ANC_ CSUM_ INS AP-EDH TRS_IN IOPROC_DISABLE 03h 02h 01h 00h FIFO_ FIFO_ H_ 352M_ 352M_ ILLEGAL_ MODE MODE CONFIG CALC INS REMAP b1 b0 NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. These registers may be written to in Ancillary Data Insertion mode (see Section 3.3.3). GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 21 of 63 3. Detailed Description • • • • • • • • • • • • • • • Functional Overview Parallel Data Inputs Internal FIFO Operation SMPTE Mode DVB-ASI Mode Data-Through Mode Additional Processing Functions Parallel-to-Serial Conversion Serial Digital Data PLL Serial Digital Output Programmable Multi-function I/O Low Latency Mode GSPI Host Interface JTAG Operation Device Power Up 3.1 Functional Overview The GS9092A is a 270Mb/s serializer with an internal FIFO and a programmable multi-function I/O port. The device has 3 different modes of operation which must be set by the application layer through external device pins. When SMPTE mode is enabled, the device will accept 10-bit multiplexed SMPTE compliant data at 27MHz. The device's additional processing features are also enabled in this mode. In DVB-ASI mode, the GS9092A will accept an 8-bit parallel DVB-ASI compliant transport stream. The serial output data stream will be 8b/10b encoded and padded with K28.5 fill characters. The GS9092A's third mode allows for the serializing of data not conforming to SMPTE or DVB-ASI streams. The serial digital outputs feature a high impedance mode and adjustable signal swing. In the digital signal processing core, several data processing functions are implemented including SMPTE 352M and EDH data packet generation and insertion, 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. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 22 of 63 The provided programmable multi-function I/O pins may be configured to input and output various status signals including H, V, and F timing, a FIFO_FULL, and a FIFO_EMPTY pulse. The internal FIFO supports 4 modes of operation, which may be used for data delay, MPEG packet insertion, or ancillary data insertion. Finally, the GS9092A contains a JTAG interface for boundary scan test implementations. 3.2 Parallel Data Inputs Data inputs enter the device on the rising edge of either PCLK or WR_CLK, depending on the configuration of the internal FIFO. When the internal FIFO is bypassed or in ancillary data insertion mode (see Ancillary Data Insertion Mode on page 31), data enters the device on the rising edge of PCLK as shown in Figure 3-1. When the internal FIFO is configured for video mode, data enters the device on the rising edge of WR_CLK (see Video Mode on page 26). The input data format is defined by the setting of the external SMPTE_BYPASS and DVB_ASI pins (Table 3-1). Input data must be presented in 10-bit format. tSU tIH PCLK 50% DIN[9:0] VIH VIL VIH VIL CONTROL SIGNAL INPUT VIH VIL VIH VIL Figure 3-1: PCLK to Input Data Timing NOTE: For a SMPTE compliant serial output, the jitter on the input PCLK across the frequency spectrum should not exceed 350ps. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 23 of 63 3.2.1 Parallel Input in SMPTE Mode When the device is operating in SMPTE mode (see SMPTE Mode on page 35), SD data is presented to the input bus in 10-bit multiplexed format. The input data format must be word aligned, multiplexed luma and chroma data. NOTE: When operating the device in an 8-bit SMPTE system, the 2 LSBs (DIN [1:0]) must be set to 0. Table 3-1: Input Data Format Selection Pin Settings Input Data Format 10-bit Data 10-bit Multiplexed SD 10-bit DVB-ASI DIN[9:0] DATA Luma/Chroma DVB-ASI data SMPTE_BYPASS LOW HIGH X DVB_ASI LOW LOW HIGH 3.2.2 Parallel Input in DVB-ASI Mode When operating in DVB-ASI mode (see DVB-ASI Mode on page 36), the device will accept 8-bit data words on DIN[7:0] such that DIN7 = HIN is the most significant bit of the encoded transport stream data and DIN0 = AIN is the least significant bit. In addition, DIN9 and DIN8 will be configured as the DVB-ASI control signals INSSYNCIN and K_IN respectively. See Control Signal Inputs on page 36 for a description of these DVB-ASI specific input signals. 3.2.3 Parallel Input in Data-Through Mode When operating in Data-Through mode (see Data-Through Mode on page 37), the GS9092A passes data presented to the parallel input bus to the serial output without performing any encoding, scrambling, or word-alignment. 3.2.4 I/O Buffers The parallel data bus, status signal outputs, and control signal input pins are all connected to high-impedance buffers. These buffers use either +1.8V or +3.3V DC, supplied at the IO_VDD and IO_GND pins. For a +3.3V tolerant I/O, the IO_VDD pins can be connected to either +1.8V or +3.3V. For a +5V tolerant I/O, the IO_VDD pins must be supplied with +3.3V. While RESET is LOW, STAT output pins are muted and all other output pins become high impedance. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 24 of 63 3.3 Internal FIFO Operation The GS9092A contains an internal video line-based FIFO, which can be programmed by the application layer to work in any of the following modes: 1. Video Mode 2. DVB-ASI Mode 3. Ancillary Data Insertion Mode 4. Bypass Mode The FIFO can be configured to one of the four modes by setting the FIFO_MODE[1:0] bits of the IOPROC_DISABLE register via the host interface (see Table 3-4 in Packet Generation and Insertion on page 38). The setting of these bits is shown in Table 3-2. To enable the FIFO, the application layer must also set the FIFO_EN pin HIGH. Additionally, if the FIFO is configured for video mode or ancillary data insertion 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, and can store up to 1 full line of SD video for both 525 and 625 standards. NOTE: The F, V, and H signals will be ignored when the FIFO is configured for DVB-ASI mode or bypass mode. Table 3-2: FIFO Configuration Bit Settings FIFO Mode FIFO_MODE[1:0] Register Setting 00b 01b 10b FIFO_EN Pin Setting HIGH HIGH HIGH IOPROC_EN Pin Setting HIGH X HIGH Video Mode DVB-ASI Mode Ancillary Data Insertion Mode Bypass Mode 11b X X NOTE: ‘X’ signifies ‘don’t care’. The pin is ignored and may be set HIGH or LOW. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 25 of 63 3.3.1 Video Mode The internal FIFO is in video mode under the following conditions: • • • • the FIFO_EN and IOPROC_EN pins are set HIGH, the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register (Table 3-4) are configured to 00b, the DETECT_TRS pin is set LOW; and TRS insertion, EDH correction/insertion, illegal code re-mapping, and SMPTE packet insertion are all disabled (i.e. bits 0, 2, 3, and 4 of the IOPROC_DISABLE register are set HIGH). NOTE: The FIFO will still enter video mode if any of bits 0, 2, 3, or 4 of the IOPROC_DISABLE register are LOW; however, the output video data will contain errors. 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 and DETECT_TRS pins are set LOW. In video mode, the H, V, and F pins become input signals that must be supplied by the user. Figure 3-2 shows the input and output signals of the FIFO when it is configured for video mode. Application Interface Internal 10-bit Video Data 10-bit Video Data FIFO (Video Mode) WR_RESET RD_RESET (supplied H timing) RD_CLK (PCLK) WR_CLK Figure 3-2: FIFO in Video Mode When operating in video mode, the GS9092A will read data sequentially from 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 delay. The device will ensure read-side synchronization is maintained, according to the supplied PCLK and supplied H, V, and F timing information. Full write-control of the FIFO is made available to the application interface such that data is clocked into the FIFO on the rising edge of the externally provided WR_CLK. The FIFO write pointer will be reset to position zero of the memory when there is a HIGH-to-LOW transition at the WR_RESET pin. The application layer must start writing the first active pixel of the line into location zero of memory. Therefore, the user should use the WR_RESET pin to reset the FIFO write pointer prior to writing to the device. NOTE: The BLANK signal must not be asserted in video mode. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 26 of 63 3.3.2 DVB-ASI Mode The internal FIFO is in DVB-ASI mode when the application layer sets the FIFO_EN pin 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 pin is set HIGH (i.e. the device is in DVB-ASI mode); however, the application layer may program the FIFO_MODE[1:0] bits as required. Figure 3-3 shows the input and output signals of the FIFO when it is configured for DVB-ASI Mode. Application Interface 8-bit MPEG Data Internal 8-bit MPEG Data K_IN FIFO (DVB-ASI Mode) K_IN FIFO_FULL FIFO_EMPTY WR_CLK RD_CLK (PCLK) Figure 3-3: FIFO in DVB-ASI Mode When operating in DVB-ASI mode, the GS9092A's FIFO can be used for clock rate interchange operation. 8-bit MPEG data as well as a K_IN control signal must be written to the FIFO by the application layer. The MPEG data and control signal can be simultaneously clocked into the FIFO at any rate using the rising edge of the WR_CLK pin. The 8-bit MPEG data stream may consist of only MPEG packets, or both MPEG packets and special characters (such as the K28.5 stuffing characters). The application layer must set K_IN HIGH whenever a special character is present in the data stream, otherwise it should be LOW. The GS9092A uses the K_IN signal to determine whether or not a given byte in the FIFO is an MPEG packet that needs 8b/10b encoded. The INSSYNCIN pin should be grounded while operating the FIFO in DVB-ASI mode. The GS9092A internally reads the data out of the FIFO at the PCLK rate and adds the necessary number of stuffing characters based on the FIFO status flags. 3.3.2.1 FIFO Status Flags The FIFO contains internal read and write pointers used to designate which spot in the FIFO the MPEG data will be read from or written to. These internal pointers control the status flags FIFO_FULL and FIFO_EMPTY, which are available for output on the multi-function I/O pins if so programmed (see Programmable Multi-function I/O on page 51). 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 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 27 of 63 box A of Figure 3-6). When the FIFO_EMPTY flag goes HIGH, the device will insert K28.5 stuffing data bytes. To allow larger K28.5 packet sizes to be inserted, a write pointer offset can be programmed into the FIFO_EMPTY_OFFSET[9:0] register of the host interface. If an offset value is programmed in this register, the FIFO_EMPTY flag is 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 offset. While the FIFO_EMPTY flag is HIGH, the device will continue to insert stuffing characters. Once the pointer offset has been exceeded, the FIFO_EMPTY flag will go LOW and the device will begin reading MPEG data out of the FIFO (see box B of Figure 3-6). 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 box C of Figure 3-6). The application layer can use this flag to determine when to write to 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 box D of Figure 3-6). NOTE: When the FIFO is configured for DVB-ASI mode, the INSSYNCIN pin is unused, as synchronization characters are inserted based on the FIFO status flags. The pin should be grounded. When the internal FIFO is bypassed in DVB-ASI mode, the INSSYNCIN input assumes normal operation as described in Control Signal Inputs on page 36. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 28 of 63 Gating the WR_CLK Using the FIFO_FULL Flag Using the asynchronous FIFO_FULL flag to gate the WR_CLK requires external clock gating circuitry to generate a clean burst clock (see Figure 3-4). An example circuit for this application is shown in Figure 3-5. CORRECT INCORRECT Figure 3-4: Burst Clock FIFO_FULL D SET Q D SET Q D SET Q WR_CLK CR L Q CR L Q CR L Q GATED WR_CLK WR_CLK FIFO_FULL GATED WR_CLK Figure 3-5: Example Circuit to Gate WR_CLK Using the FIFO_FULL Flag GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 29 of 63 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 3-6: FIFO Status Flag Operation in DVB-ASI Mode GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 30 of 63 3.3.3 Ancillary Data Insertion Mode The internal FIFO is in ancillary data insertion mode when the application layer sets the FIFO_EN and IOPROC_EN pins HIGH, and the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register are configured to 10b. In this mode, the FIFO is divided into two separate blocks of 1024 words each. To insert ancillary data into the video stream, the internal PLL must be locked to the input PCLK. Once the FIFO enters ancillary data insertion mode, there is a 2200 PCLK cycle (82us) initialization period before the application layer may write ancillary data into the FIFO. The device will set the ANC_FIFO_READY bit HIGH (bit 12 of address 06h) once this initialization period has passed. The following steps, which may be completed in any order, are required before ancillary data is inserted into the data stream: 1. Starting at the first address of the FIFO (address 02Ch), the application layer must program the contents of the ancillary data packets to be inserted into the FIFO via the host interface. A maximum of 1024 8-bit words are allowed. The entire packet, including the ancillary data flag (ADF), data identification (DID), secondary data identification (SDID) if applicable, data count (DC), and checksum word must be written into memory. The user may write an arbitrary value (FFh for example) for the checksum word, which will act as a place holder. The actual checksum will be calculated and inserted by the device prior to insertion into the data stream. The GS9092A will also generate bit 8 and 9 for all words in the FIFO (as described in SMPTE 291M) prior to insertion. Note that no ancillary data can be written to the FIFO until the device has set the ANC_FIFO_READY bit HIGH. 2. The number of words to be inserted (i.e. the number of words written into the FIFO), must be programmed in the ANC_WORDS[10:0] register by the application layer. If the total number of words to be inserted exceeds the available space, the ancillary data will be inserted up to the point where the available space is filled. 3. The line(s) in which the packets are to be inserted must be programmed into the ANC_LINE_A[10:0] and/or ANC_LINE_B[10:0] registers. Up to two lines per frame may have ancillary data packets inserted in them. If only one line number register is programmed, ancillary data packets will be inserted in one line per frame only. The GS9092A will insert ancillary data into the designated line(s) during every frame. 4. The application layer must set the ANC_SAV bit of the IO_CONFIG register (address 05h) either HIGH or LOW. By default, the ANC_SAV bit will be LOW and the ancillary data will be inserted into the horizontal ancillary data space at the first available location after the EAV. If the ANC_SAV bit is set HIGH, the ancillary data is written instead immediately after the SAV on the line programmed. If an active video line is programmed into the ANC_LINE_A[10:0] or ANC_LINE_B[10:0] register, the active video data will be overwritten when ANC_SAV is set HIGH. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 31 of 63 Once the above steps are completed, the application layer may set the ANC_PKT_INS bit of the IOPROC_DISABLE register HIGH (see Table 3-4 in Packet Generation and Insertion on page 38) to enable insertion of the prepared ancillary packets into the video data stream. Ancillary data packets will be inserted in the following frame after the ANC_PKT_INS bit has been set HIGH. NOTE: When inserting ancillary data into the blanking region, the total number of words cannot exceed the size of the blanking region, and the data count value in the packet must be correct. 3.3.3.1 Ancillary Data Insertion Once the ANC_PKT_INS bit is set HIGH, the device will start reading the user programmed ancillary packets out of the FIFO and insert them into the video stream. Subsequent ancillary packets programmed by the application layer will continue to be placed into the first half of the FIFO until the ANC_DATA_SWITCH bit is toggled (see block A of Figure 3-7). By default, the ANC_DATA_SWITCH bit of the IO_CONFIG register is set LOW. When ANC_DATA_SWITCH is toggled from LOW to HIGH, any new ancillary data the application layer programs will be placed in the second half of the FIFO. The device will continue to insert ancillary data from the first half of the FIFO into the video stream (see block B of Figure 3-7). Once the ancillary data in the first half of the FIFO has been inserted into the video stream, ANC_DATA_SWITCH may be toggled again. This will clear the first half of the FIFO and begin insertion of ancillary data from the second half of the FIFO. The application layer may continue programming ancillary data into the second half of the FIFO (see block C of Figure 3-7). If the ANC_DATA_SWITCH bit is toggled again, any new data the application layer programs will be placed into the first half of the FIFO. The device will continue to insert ancillary data from the second half of the FIFO into the video stream (see block D of Figure 3-7). 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 3-7) 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. The GS9092A will insert the ancillary data programmed in the FIFO into each video frame at the designated line(s) programmed in ANC_LINE_A[10:0] and/or ANC_LINE_B[10:0]. Clearing the ANC_PKT_INS bit will not automatically disable ancillary data insertion. To disable ancillary data insertion, switch the FIFO into bypass mode by setting FIFO_MODE[1:0] = 11b. 2200 PCLK cycles after the device re-enters ancillary data insertion mode, data extraction will commence immediately if ANC_PKT_INS is HIGH. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 32 of 63 When there are existing ancillary data packets present in the video data stream, the device will append the ancillary data to the existing data only when the ANC_SAV bit is set LOW. In this case, all existing ancillary data must be contiguous after the EAV. If data is not contiguous, the ancillary data to be inserted will be written at the first available space where the video is set to blanking levels. When ANC_SAV is set HIGH, any data present after the SAV will be overwritten. To overwrite existing ancillary data, the ANC_DATA_REPLACE bit of the FIFO_EMPTY_OFFSET register must be set HIGH. When this bit is set HIGH, existing ancillary data will be replaced with the data to be inserted and the remainder of the line will be set to blanking levels. The device will replace ancillary data on the line of insertion only. Existing ancillary data on other lines will not be replaced with blanking levels. NOTE: If the ANC_SAV and ANC_DATA_REPLACE bits are both set HIGH, and if ancillary data is inserted on an active picture line, the remainder of the active line will be set to blanking levels. Ancillary Data Readback Mode By default, when the FIFO is in ancillary data insertion mode, the application layer can only write ancillary data into the FIFO. However, if ANC_DATA_RDBACK is set HIGH (bit 13 of address 06h), the GS9092A will discontinue inserting ancillary data into the data stream and the host interface may read the ancillary data programmed into that half of the FIFO. 3.3.3.2 Clearing the ANC Data FIFO When switching to ANC FIFO mode, the user must follow one of the 2 methods below to ensure that the FIFO is fully cleared. Clearing ANC FIFO Method 1: 1. Enable ANC FIFO mode (write 10b into the FIFO_MODE register). 2. Wait for ANC_FIFO_READY bit to be asserted. 3. Toggle (LOW-to-HIGH-to-LOW) ANC_DATA_SWITCH bit (bit 12 of IO_CONFIG register) twice. Clearing ANC FIFO Method 2: 1. Power on device. 2. Set FIFO_EN pin HIGH. 3. Enable ANC FIFO mode (write 10b into the FIFO_MODE register). 4. Set FIFO_EN pin LOW. 5. Set FIFO_EN pin HIGH. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 33 of 63 A Application layer read pointer 0 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 ANC_DATA 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. Figure 3-7: Ancillary Data Insertion GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 34 of 63 3.3.4 Bypass Mode The internal FIFO is in bypass mode when the application layer sets the FIFO_EN or IOPROC_EN pin 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 application layer may program the FIFO_MODE[1:0] bits as required. In bypass mode, the FIFO is not inserted into the video path and data is presented to the input of the device synchronously with the PCLK input. The FIFO will be disabled and placed in static mode to save power. 3.4 SMPTE Mode The GS9092A enters SMPTE mode when the SMPTE_BYPASS pin is set HIGH and the DVB_ASI pin is set LOW. In this mode, the parallel data will be scrambled according to SMPTE 259M and NRZ-to-NRZI encoded prior to serialization. 3.4.1 I/O Status Signals When DETECT_TRS is LOW, the device will be locked to the externally supplied H, V, and F signals. When DETECT_TRS is HIGH, the device will be locked to the embedded TRS signals in the parallel input data. The H, V, and F pins become output status signals, and their timing will be based on embedded TRS words. 3.4.2 HVF Timing Signal Inputs As discussed above, the GS9092A's internal flywheel may be locked to externally provided H, V, and F signals when DETECT_TRS is set LOW by the application layer. The H signal timing may be configured via the H_CONFIG bit of the internal IOPROC_DISABLE register as either active line-based blanking or TRS-based blanking (see Table 3-4 in Packet Generation and Insertion on page 38). The default setting of this bit (after RESET has been asserted) is LOW. Active line-based blanking is enabled when the H_CONFIG bit is set LOW. In this mode, the H input should be HIGH for the entire horizontal blanking period, including the EAV and SAV TRS words. This is the default H timing assumed by the device. When H_CONFIG is set HIGH, TRS-based blanking is enabled. In this case, the H input should be set HIGH for the entire horizontal blanking period as indicated by the H bit in the associated TRS words. The timing of these signals is shown in Figure 3-8. When the DETECT_TRS pin is set HIGH, the output timing on the H pin can be selected as either active line-based or TRS-based. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 35 of 63 PCLK Y/Cr/Cb DATA INPUT H V F 3FF 000 000 XYZ (eav) 3FF 000 000 XYZ (sav) H SIGNAL TIMING: H_CONFIG = LOW (Default) H_CONFIG = HIGH Figure 3-8: H, V, and F Input Timing 3.5 DVB-ASI Mode The GS9092A enters DVB-ASI mode when the application layer sets the DVB_ASI pin HIGH. In this mode, all SMPTE processing functions are disabled, and the 8-bit transport stream data will be 8b/10b encoded prior to serialization. 3.5.1 Control Signal Inputs In DVB-ASI mode, the DIN9 and DIN8 will be configured as DVB-ASI control signals INSSYNCIN and K_IN respectively. When INSSYNCIN is set HIGH, the device will insert K28.5 sync characters into the data stream. This function is used to assist system implementations where the GS9092A's internal FIFO is disabled (FIFO_EN = LOW), and the device is preceded by an external FIFO. Parallel data may be clocked into the external FIFO at some rate less than 27MHz. The INSSYNCIN input may then be connected to the FIFO empty signal, thus providing a means of padding up the data transmission rate to 27MHz. NOTE 1: If the internal FIFO is enabled (FIFO_EN = HIGH), the INSSYNCIN pin should be grounded (see DVB-ASI Mode on page 27). NOTE 2: In DVB-ASI mode, 8b/10b encoding will take place after K28.5 sync character insertion. K_IN should be set HIGH whenever the parallel data input is to be interpreted as any special character (including the K28.5 sync character), defined by the DVB-ASI standard. This pin should be set LOW when the input is to be interpreted as data. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 36 of 63 3.6 Data-Through Mode The GS9092A may be configured by the application layer to operate as a simple parallel-to-serial converter. In this mode, the device presents data to the output buffer without performing any scrambling, encoding, or word-alignment. Data-through mode is enabled only when both the SMPTE_BYPASS and DVB_ASI pins are set low by the application layer. 3.7 Additional Processing Functions The GS9092A contains an additional data processing block which is available in SMPTE mode only (see SMPTE Mode on page 35). 3.7.1 Input Data Blank The GS9092A can crop the video input data, where the cropped region is set to blanking levels. All input video and ancillary data will be set to blanking levels by the device, however, the TRS will be protected at all times. When the BLANK pin is set LOW, the input video will be set to blanking levels until the BLANK pin is re-asserted HIGH. When set HIGH, the input video will not be blanked. This allows portions of the input video to be dynamically cropped, based on the timing of the BLANK input. The BLANK input should be synchronized to the PCLK unless the internal FIFO is enabled and configured for video mode. If the FIFO is in video mode, the BLANK input should not be used. 3.7.2 Automatic Video Standard Detection The GS9092A can detect the input video standard by using the timing parameters extracted from the received TRS ID words or supplied H, V, and F timing signals. Total samples per line, active samples per line, total lines per field/frame and active lines per field/frame are calculated and presented to the host interface via the four RASTER_STRUCTURE registers (Table 3-3). In addition to the RASTER_STRUCTURE registers, bit 4 of the VIDEO_STANDARD register contains a status bit, STD_LOCK, which will be set HIGH whenever the device has achieved full synchronization to the detected video standard. The STD_LOCK bit, as well as the RASTER_STRUCTURE registers will default to zero under any of the following conditions: • • RESET is LOW SMPTE_BYPASS is LOW NOTE: When the video data is removed, but the PCLK remains, the VIDEO_STANDARD register will contain the last detected standard. To clear the registers, the PCLK must be removed as well or the device must be reset. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 37 of 63 Table 3-3: 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 N otU sed Total Lines Per Frame N otU sed Total Words Per Line N otU sed Words Per Active Line N otU sed Active Lines Per Field R/W – R – R – R – R Default – 0 – 0 – 0 – 0 3.7.3 Packet Generation and Insertion In addition to input data blanking and automatic video standards detection, the GS9092A may also calculate, assemble, and insert into the data stream various types of ancillary data packets and TRS ID words. These features are only available when the device is set to operate in SMPTE mode and the IOPROC_EN pin is set HIGH. Individual insertion features may be enabled or disabled via the IOPROC_DISABLE register (Table 3-4). All of the IOPROC_DISABLE register bits default to '0' after device reset, enabling all of the processing features. To disable any individual error correction feature, the host interface must set the corresponding bit HIGH in this register. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 38 of 63 Table 3-4: Host Interface Description for Internal Processing Disable Register Register Name IOPROC_DISABLE Address: 00h Bit 15-10 9 Name – ANC_PKT_INS Description Not Used Ancillary Packet Insertion Enable. When the FIFO is configured for ancillary data insertion, set HIGH to begin inserting ancillary data. NOTE: Setting ANC_PKT_INS LOW will not automatically disable ancillary data insertion (see Ancillary Data Insertion on page 32). 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 3-2) 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 3-8 in HVF Timing Signal Inputs on page 35. SMPTE 352M Calculation. When set LOW, the GS9092A will automatically generate packet information prior to insertion. When set HIGH, the user must program the VIDEO_FORMAT registers with the SMPTE 352M packet to be inserted. SMPTE 352M Packet Insertion. The IOPROC_EN pin and SMPTE_BYPASS pin must also be set HIGH. Set HIGH to disable. NOTE: The user should disable Packet Insertion when serializing SDTI signals. R/W 0 6 H_CONFIG R/W 0 5 352M_CALC R/W – 4 352M_INS R/W – 3 ILLEGAL_REMAP Illegal code re-mapping. Detection and correction of illegal code words within the active picture area. The IOPROC_EN pin and SMPTE_BYPASS pin must also be set HIGH. Set HIGH to disable. Error Detection & Handling (EDH) Cyclical Redundancy Check (CRC) error insertion. The GS9092A will generate and insert EDH packets. The IOPROC_EN pin and SMPTE_BYPASS pin must also be set HIGH. Set HIGH to disable. Ancillary Data Checksum insertion. The IOPROC_EN pin and SMPTE_BYPASS pin must also be set HIGH. Set HIGH to disable. Timing Reference Signal Insertion. Occurs only when IOPROC_EN pin and SMPTE_BYPASS pin is HIGH. Set 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 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 39 of 63 3.7.3.1 SMPTE 352M Payload Identifier Generation and Insertion If the 352M_INS bit of the IOPROC_DISABLE register is set LOW, the GS9092A can generate and insert SMPTE 352M payload identifier ancillary data packets into the data stream automatically or based on information programmed into the host interface. When the 352M_CALC bit of the IOPROC_DISABLE register is set HIGH, the user must program the SMPTE 352M packet to be inserted into the VIDEO_FORMAT registers (Table 3-5). In addition, the line number(s) in which the packet is to be inserted must be programmed in the 352M_LINE_1 and 352M_LINE_2 registers (Table 3-6). If both line number registers are set to zero, no packets will be inserted. NOTE: The user must program the SMPTE 352M packet into the VIDEO_FORMAT registers prior to programming the line number(s) in which the packet is to be inserted. NOTE: It is the responsibility of the user to ensure that there is sufficient space in the horizontal blanking interval for the insertion of the SMPTE 352M packets. These packets will be inserted immediately after the EAV word on the line designated in the standard or by the user If there are other ancillary data packets present, the SMPTE 352M packet will be inserted in the first available space in the HANC. Ancillary data must be contiguous from the EAV. When there is insufficient space available, the 352M packets will not be inserted. When the 352M_CALC bit of the IOPROC_DISABLE register is set LOW, the GS9092A will automatically generate and insert 352M packets into the video stream. The device will also write the generated packet into the VIDEO_FORMAT registers. NOTE: When the IOPROC_EN pin is set HIGH and all registers contain their default values, the VIDEO_FORMAT registers are set to 0h and do not contain the SMPTE 352M packet. The SMPTE 352M packet will be inserted into the data stream according to the line number and sample position defined in the standard. The 4:3/16:9 bit of the SMPTE 352M packet will be set LOW by default to denote 4:3. For video payloads where 16:9 images are transmitted over 270Mb/s links, the user must program the SMPTE 352M packet accordingly. The video payload identifier packet will be version 1 and comply with the structure defined in SMPTE 352M-2002. NOTE: The user should turn off SMPTE 352M packet insertion when serializing SDTI signals. Table 3-5: Host Interface Description for SMPTE 352M Payload Identifier Registers Register Name VIDEO_FORMAT_B Address: 10h Bit 15-8 Name SMPTE 352M Byte 4 Description SMPTE 352M Byte 4 information must be programmed in this register when 352M_INS is LOW and 352M_CALC is HIGH. SMPTE 352M Byte 3 information must be programmed in this register when 352M_INS is LOW and 352M_CALC is HIGH. R/W R/W Default 0 7-0 SMPTE 352M Byte 3 R/W 0 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 40 of 63 Table 3-5: Host Interface Description for SMPTE 352M Payload Identifier Registers Register Name VIDEO_FORMAT_A Address: 0Fh Bit 15-8 Name SMPTE 352M Byte 2 Description SMPTE 352M Byte 2 information must be programmed in this register when 352M_INS is LOW and 352M_CALC is HIGH. SMPTE 352M Byte 1 information must be programmed in this register when 352M_INS is LOW and 352M_CALC is HIGH. R/W R/W Default 0 7-0 SMPTE 352M Byte 1 R/W 0 Table 3-6: Host Interface Description for SMPTE 352M Packet Line Number Insertion Registers Register Name 352M_LINE_1 Address: 26h Bit 15-11 10-0 Name – 352M_LINE_1 [10:0] Description N otU sed Line number where SMPTE352M packet is inserted in field 1. If the 352M_CALC bit is HIGH, and both 352M_LINE1 and 352M_LINE2 are set to zero, then no packets will be inserted. N otU sed Line number where SMPTE352M packet is inserted in field 2. If the 352M_CALC bit is HIGH, and both 352M_LINE1 and 352M_LINE2 are set to zero, then no packets will be inserted. R/W – R/W Default – 0 352M_LINE_2 Address: 27h 15-11 10-0 – 352M_LINE_2 [10:0] – R/W – 0 3.7.3.2 Illegal Code Remapping If the ILLEGAL_REMAP bit of the IOPROC_DISABLE register is set LOW, the GS9092A will remap all codes within the active picture between the values of 3FCh and 3FFh to 3FBh. All codes within the active picture area between the values of 000h and 003h will be remapped to 004h. In addition, 8-bit TRS and ancillary data preambles will be remapped to 10-bit values if this feature is enabled. NOTE: The EDH block always remaps EDH packet headers regardless of the ILLEGAL_REMAP setting. 3.7.3.3 EDH Generation and Insertion If the EDH_CRC_INS bit of the IOPROC_DISABLE register is set LOW, the GS9092A may be configured to generate and insert complete EDH packets into the data stream, or update the CRC bits of existing EDH packets. Generation and Insertion of New EDH Packets When EDH_CRC_UPDATE is set LOW (bit 11 of address 04h), the GS9092A will generate all of the required EDH packet data including all ancillary data preambles (DID, DBN, GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 41 of 63 DC), reserved code words and checksum. Calculation of both full field (FF) and active picture (AP) CRC's will be carried out by the device. By default, after a system reset, the GS9092A will calculate the EDH ranges based on the setting of the DETECT_TRS pin. If DETECT_TRS is LOW, the device will calculate the EDH ranges based on the received H, V, and F timing. If DETECT_TRS is HIGH, the device will calculate the ranges based on the internal TRS timing. Alternatively, the user can program the EDH calculation ranges in the host interface. The registers available to the host interface for programming EDH calculation ranges include active picture and full field line start and end positions for both fields. Table 3-7 shows the relevant registers, which default to '0' after device reset. If any or all of these register values are zero, then the EDH CRC calculation ranges will be determined from the flywheel generated H signal. The first AP pixel will always be the first pixel after the SAV TRS code words. The first FF pixel will always be the first pixel after the EAV TRS code words. The last AP pixel and last FF pixel will always be the last pixel before the start of the EAV code words. Figure 3-9 shows the positions of the FF and AP pixel positions relative to TRS words and H timing. H Timing (H_CONFIG = LOW) H Timing (H_CONFIG = HIGH) 3FF XYZ 000 000 SAV FIRST FIRST AP AP PIXEL LAST LAST FF & FF AP PIXEL PIXEL XYZ 3FF 000 000 EAV FIRST FIRST FF PIXEL Figure 3-9: First and Last FF and AP Pixel Positions GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 42 of 63 EDH error flags (EDH, EDA, IDH, IDA, and UES) for ancillary data, full field, and active picture will also be inserted. These flags must be programmed into the EDH_FLAG registers of the device by the application layer (Table 3-8). NOTE 1: It is the responsibility of the user to ensure that the EDH flag registers are updated once per field. The prepared EDH packet will be inserted at the appropriate line of the video stream according to RP 165. The start pixel position of the inserted packet will be based on the SAV position of that line such that the last byte of the EDH packet (the checksum) will be placed in the sample immediately preceding the start of the SAV TRS word. NOTE 2: It is also the responsibility of the user to ensure that there is sufficient space in the horizontal blanking interval for the EDH packet to be inserted. CRC Update of Existing Packets When the EDH_CRC_UPDATE bit is set HIGH, the GS9092A will not generate any new EDH packets, but will instead update the CRC bytes of the existing EDH packets within the input video data stream. Incoming EDH flags are preserved and can be read from the EDH_FLAG register, which becomes read-only (Table 3-8). When EDH packets are detected, the EDH_FLAG register is updated on each field. These registers will be cleared LOW if no EDH packet is detected during blanking at the end of the vertical blanking period (falling edge of V). The validity or ‘V’ bits of the incoming EDH packet will also be set to ‘1’ to denote that the CRC calculations are valid. The EDH packet checksum word is also re-calculated and re-inserted. When incoming EDH packets are updated, the location of the packets within the video stream remains unchanged. EDH packets that are to be updated can be present anywhere within the horizontal blanking region of the vertical blanking period. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 43 of 63 Table 3-7: 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. N otU sed Field 0 Active Picture end line data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 1 Active Picture start line data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 1 Active Picture end line data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 0 Full Field start line data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 0 Full Field end line data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 1 Full Field start line data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 1 Full Field end line data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 0 Active Picture start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 0 Active Picture end 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 AP_PIXEL_END_F0 Address: 1Eh 15-13 12-0 – AP_PIXEL_END_F0[12:0] – R/W – 0 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 44 of 63 Table 3-7: Host Interface Description for EDH Calculation Range Registers (Continued) Register Name AP_PIXEL_START_F1 Address: 1Fh Bit 15-13 12-0 Name – AP_PIXEL_START_F1[12:0] Description N otU sed Field 1 Active Picture start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 1 Active Picture end pixel data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 0 Full Field start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 0 Full Field end pixel data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed Field 1 Full Field start pixel data used to set EDH calculation range outside of SMPTE RP 165 values. N otU sed 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_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 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 45 of 63 Table 3-8: Host Interface Description for EDH Flag Register Register Name EDH_FLAG Address: 02h 14 ANC-UES Ancillary Unknown Error Status flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. 13 ANC-IDA Ancillary Internal device error Detected Already flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. 12 ANC-IDH Ancillary Internal device error Detected Here flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. 11 ANC-EDA Ancillary Error Detected Already flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. 10 ANC-EDH Ancillary Error Detected Here flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. 9 FF-UES Full Field Unknown Error Status flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. 8 FF-IDA Full Field Internal device error Detected Already flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. 7 FF-IDH Full Field Internal device error Detected Here flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 R/W 0 Bit 15 Name – Description Not Used R/W – Default – GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 46 of 63 Table 3-8: Host Interface Description for EDH Flag Register (Continued) Register Name Bit 6 Name FF-EDA Description Full Field Error Detected Already flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W R/W Default 0 5 FF-EDH Full Field Error Detected Here flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W 0 4 AP-UES Active Picture Unknown Error Status flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W 0 3 AP-IDA Active Picture Internal device error Detected Already flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W 0 2 AP-IDH Active Picture Internal device error Detected Here flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W 0 1 AP-EDA Active Picture Error Detected Already flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W 0 0 AP-EDH Active Picture Error Detected Here flag will be generated and inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW. NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is read-only, and will be updated by the device. R/W 0 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 47 of 63 3.7.3.4 Ancillary Data Checksum Generation and Insertion The GS9092A will calculate checksums for all detected ancillary data packets presented to the device. These calculated checksum values are inserted into the data stream prior to serialization. Ancillary data checksum generation and insertion will only take place if the ANC_CSUM_INS bit of the IOPROC_DISABLE register is set LOW. 3.7.3.5 TRS Generation and Insertion The GS9092A can generate and insert 10-bit TRS code words into the data stream as required. This feature is enabled by setting the TRS_INS bit of the IOPROC_DISABLE register LOW. TRS word generation will be performed in accordance with the timing parameters, which will be locked either to the received TRS ID words or the supplied H, V, and F timing signals. 3.8 Parallel-to-Serial Conversion The parallel data output of the internal data processing blocks is fed to the parallel-to-serial converter. The function of this block is to generate a serial data stream from the 10-bit parallel data words. 3.9 Serial Digital Data PLL The input PCLK pin is internally connected to an integrated phase-locked loop. This PLL is also responsible for generating all internal clock signals required by the device. An internal VCO provides the transmission clock rate for the GS9092A. The PLL and VCO each require a +1.8V DC power supply, which is supplied via the VCO_VDD / VCO_GND and PLL_VDD / PLL_GND pins. A loop filter capacitor should also be connected between the LF+ and LF- pins. See Typical Application Circuit on page 59. NOTE: For a SMPTE compliant serial output, the jitter on the input PCLK across the frequency spectrum should not exceed 350ps. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 48 of 63 3.10 Serial Digital Output The GS9092A contains an integrated current mode differential serial digital output buffer/cable driver, capable of driving 800mV into two single ended 75Ω loads. Output pins SDO and SDO provide a single differential serial digital output. Alternatively, two 75Ω connections can be driven using single ended drive. To enable the output, SDO_EN must be set HIGH by the application layer. Setting the SDO_EN signal LOW will cause the SDO and SDO output pins to become high impedance, resulting in reduced device power consumption. With suitable external return loss matching circuitry, the GS9092A's serial digital outputs will provide a minimum output return loss of 15dB. The output buffer / cable driver uses a separate power supply of +1.8V DC supplied via the CD_VDD and CD_GND pins. 3.10.1 Output Swing Nominally, the voltage swing of the serial digital output is 800mVp-p single-ended into a 75Ω load. This is set externally by connecting the RSET pin to CD_VDD through a resistor. The output swing may be adjusted by altering the value of the RSET resistor. SMPTE-compliant cable driver operation can be achieved at +1.8V operation by connecting external pull-up resistors from the differential output to the +1.8V source. 3.10.2 Serial Digital Output Mute Control The GS9092A will automatically mute the serial digital output when RESET is LOW. In this case, the SDO and SDO signals are set to the last logic state. 3.10.3 Output Return Loss Measurement Under normal operating conditions the cable connected to the BNC connector will provide a 75Ω load. Under this loaded condition, the outputs of the device swing between VCC-0.4V and VCC-1.2V. When a 75Ω load is not connected to the BNC connector, the outputs of the device will swing between VCC and VCC - 1.6V. The difference in output swing is shown in Figure 3-10. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 49 of 63 1.8 1.6 1.4 OUTPUT VOLTAGE (V) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 NON-LINEAR REGION OPERATING REGION LOADED UNLOADED Figure 3-10: Output Swing in the non-linear region of the GS9092A’s output When performing a return loss measurement the output is in a static and unloaded condition. The typical cable driver power supply is 1.8V, which places the unloaded swing very close to the power rails of the GS9092A's cable driver. As the output voltage approaches the GND rail, the output driver enters a non-linear region. In this region, the GS9092A's output transistor's characteristics are not optimal (see Figure 3-10). Figure 3-11 shows the return loss performance of the cable driver as a function of the output voltage level. When the output driver is latched low, the observed ORL in the non-linear region will appear degraded. When the output driver is latched high, the observed ORL will be representative of the operating return loss. OUTPUT VOLTAGE (V) 0.3 0 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 -10 ORL (dB) -20 -30 -40 NON-LINEAR REGION OPERATING REGION Figure 3-11: ORL vs. Output Voltage GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 50 of 63 3.11 Programmable Multi-function I/O The GS9092A has a multi-function I/O port that uses 3 pins, STAT0 through STAT2. Each pin can be programmed via the host interface to output one of the following signals: H, V, F, FIFO_FULL, and FIFO_EMPTY (see Table 3-9). The pins may also act as inputs for external H, V and F signals if DETECT_TRS is set LOW. Alternatively, STAT[2:0] may be set to a high-impedance state. Table 3-9: I/O Signals Available on Multi-function I/O Ports I/O Status Signal H V F FIFO_FULL FIFO_EMPTY Reference Section 3.4.1 Section 3.4.1 Section 3.4.1 Section 3.3.2.1 Section 3.3.2.1 The registers that determine the signals present on the STAT [2:0] pins are labelled STAT0_CONFIG[2:0], STAT1_CONFIG[2:0], and STAT2_CONFIG[2:0] respectively. Table 3-10 shows the setting of the IO_CONFIG registers for each of the available output signals. Table 3-10: IO_CONFIG Settings Function I/O DETECT_TRS Setting LOW HIGH LOW HIGH LOW HIGH X X X X X IO_CONFIG Setting 000b 000b 001b 001b 010b 010b 011b 100b 101b 110b 111b H Input Output V Input Output F Input Output High Z High Z High Z FIFO_FULL FIFO_EMPTY Output Output Output Output Output 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 3-11. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 51 of 63 NOTE: The FIFO_FULL and FIFO_EMPTY flags can only be displayed on the STAT[2:0] pins when the device is in DVB-ASI mode. If the FIFO_FULL or FIFO_EMPTY value (100b and 101b respectively) is programmed into the IO_CONFIG registers when the device is in SMPTE mode, the value will be ignored and the I/O pin will be set to a high impedance state. Table 3-11: STAT [2:0] Output Default Configuration Device Configuration IO_CONFIG Register I/O Function Default IO_CONFIG Setting 000b 001b 010b 110b 111b 000b 000b 000b 000b SMPTE Functionality SMPTE_BYPASS = HIGH DVB_ASI = LOW FIFO: Video Mode or Ancillary Data Insertion Mode DVB-ASI DVB_ASI = HIGH FIFO: DVB-ASI Mode STAT0_CONFIG STAT1_CONFIG STAT2_CONFIG STAT0_CONFIG STAT1_CONFIG STAT2_CONFIG I/O I/O I/O Output Output Output Output Output Output H V F FIFO_FULL FIFO_EMPTY High Z High Z High Z High Z Data-Through SMPTE_BYPASS = LOW DVB_ASI = LOW STAT0_CONFIG STAT1_CONFIG STAT2_CONFIG 3.12 Low Latency Mode When the IOPROC_EN pin is set LOW, the GS9092A will enter a low-latency mode such that the serial digital data will be output with the minimum PCLK latency possible. The FIFO and all processing blocks except the SMPTE scrambling block 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 3-12). In DVB-ASI mode (DVB-ASI Mode on page 36), the device will have a higher latency then low-latency mode, although this latency will be less than SMPTE mode (SMPTE Mode on page 35). Table 3-12: Pin Settings in Low-latency Mode IOPROC_EN Setting SMPTE_BYPASS Setting Latency (PCLK Cycles) 9 10 8 21 LOW HIGH LOW HIGH LOW LOW HIGH HIGH GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 52 of 63 3.13 GSPI Host Interface The GSPI, or Gennum Serial Peripheral Interface, is a 4-wire interface provided to allow the host to enable additional features of the GS9092A 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. 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 3-12. Application Host GS9092A SCLK CS1 SDOUT SCLK CS SDIN SDOUT GS9092A SCLK CS2 CS SDIN SDIN SDOUT Figure 3-12: GSPI Application Interface Connection All read or write access to the GS9092A 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. NOTE: All unused GSPI input pins (CS, SDIN, SCLK) should be pulled up to VCC_IO. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 53 of 63 3.13.1 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 3-13 shows the command word format and bit configurations. Command words are clocked into the GS9092A 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. 3.13.2 Data Read and Write Timing Read and write mode timing for the GSPI interface is shown in Figure 3-15 and Figure 3-16 respectively. The timing parameters are defined in Table 3-13. 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 3-13: 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. 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. Specification 1.5 ns 18.5 ns 40% to 60% 1.5 ns 37.1 ns t5 148.4 ns GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 54 of 63 Table 3-13: GSPI Timing Parameters (Continued) Parameter t5 Definition Read Cycle - ANC_DATA_RDBACK bit HIGH when FIFO is in ancillary insertion mode (see Ancillary Data Insertion on page 32): 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 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 3-13: Command Word Format MSB D15 LSB D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Figure 3-14: 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 3-15: GSPI Read Mode Timing GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 55 of 63 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 3-16: GSPI Write Mode Timing 3.13.3 Configuration and Status Registers Table 3-14 summarizes the GS9092A'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 3-14: GS9092A Internal Registers Address 00h 02h 04h 05h 0 6h 07h 08h - 09h 0Fh - 10h 11h - 14h 15h - 24h 26h - 27h 28h 02Ch - 42Bh Register Name IOPROC_DISABLE EDH_FLAG VIDEO_STANDARD IO_CONFIG FIFO_EMPTY_OFFSET FIFO_FULL_OFFSET ANC_LINE VIDEO_FORMAT RASTER_STRUCTURE EDH_CALC_RANGES 352M_LINE ANC_WORDS INTERNAL FIFO Reference Section 3.7.3 Section 3.7.3.3 Section 3.7.2 Section 3.11 Section 3.3.2.1 Section 3.3.2.1 Section 3.3.3 Section 3.7.3.1 Section 3.7.2 Section 3.7.3.3 Section 3.7.3.1 Section 3.3.3 Section 3.3.3 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 56 of 63 3.14 JTAG Operation When the JTAG/HOST pin is set HIGH by the application layer, the host interface port (as described in GSPI Host Interface on page 53) 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 GS9092A: 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 accomplished with tri-state buffers used in conjunction with the JTAG/HOST input signal. This is shown in Figure 3-17. 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 3-18. Application HOST GS9092A CS_TMS SCLK_TCK SDIN_TDI SDOUT_TDO JTAG_EN In-circuit ATE probe Figure 3-17: In-Circuit JTAG Application HOST GS9092A CS_TMS SCLK_TCK SDIN_TDI SDOUT_TDO Tri-State In-circuit ATE probe JTAG_EN Figure 3-18: System JTAG GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 57 of 63 3.15 Device Power Up The GS9092A 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 application layer must hold the RESET pin LOW for a minimum of treset = 1ms. Device pins can be driven prior to power up without causing damage. +1.71V +1.8V CORE_VDD treset RESET Reset treset Reset Figure 3-19: Reset pulse 4. References & Relevant Standards SMPTE 125M SMPTE 267M Component video signal 4:2:2 – bit parallel interface Bit parallel digital interface – component video signal 4:2:2 16 x 9 aspect ratio Ancillary Data Packet and Space Formatting 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 352M SMPTE RP165 SMPTE RP168 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 58 of 63 5. Application Information 5.1 Typical Application Circuit +1.8V S D O_E N 10n IOP ROC_EN J TAG_EN G ND _D 1u DETEC T_TR S +1.8V_A 0 1u S MP T E _B Y P AS S b NP +1.8V_ A G ND _D +1.8V DVB _ASI FIF O_EN NP NP G ND _A G ND _A G ND _A FIFO_EN DETEC T_TR S B LANK b S MP TE _B Y P AS S b S D O_E N IOP ROC_EN J TAG_EN R ES ETb DETEC T_TR S B LANK b S MP TE _B Y P AS S b DVB _ASI FIF O_EN R ES E Tb 0 B LANK b 10n 10n Provisions for loop bandwidth control if required by application G ND _D P CLK 33R IO_VDD DVB _ASI P CL K NP G ND _ A 47n +1.8V_A +1.8V_A 10n G ND _A 75 G ND _A G ND _A 1u +1.8V_A 75 10n G ND _A 1 2 3 4 S DO 5 S DOb 6 7 8 9 10 S DO_E N 11 IOP ROC_EN 12 J TAG_EN 13 R ES ETb 14 10n NP 10n 1u DATA [9..0] 56 55 54 53 52 51 50 49 48 47 46 45 44 43 U3 G ND _D L F+ V CO _G ND LB_CO NT VCO _VDD F IF O_ EN DET E C T _ TR S B LANK S MPTE _B YP AS S C OR E_GND DVB _ASI R SV C OR E VDD _ PCL K IO_ VDD 1u C R B NC 4.7u C L +1.8V_A 10n 281R (+/- 1%) G ND _A C OR E_VDD C S_TMS S CLK_TC K C OR E_GND S D O UT _T DO S DIN_TDI IO_ VDD NC S TAT0 (H, F IF O_FULL) IO_ GND S TAT1 (V, F IF O_ EMPT Y) S TAT2 (F ) NC IO_ GND G ND _A LFPLL_GND PLL_VDD C D_VDD S DO S DO C D_GND NC R SE T VBG S DO_E N IOPRO C_EN J TAG_EN R ES ET G S 9092 9092A IO_GND DIN9 DIN8 DIN7 DIN6 DIN5 DIN4 DIN3 DIN2 DIN1 DIN0 W R_RE SE T W R_CLK IO_VDD 42 41 40 39 38 37 36 35 34 33 32 31 30 29 DATA 9 DATA 8 DATA 7 DATA 6 DATA 5 DATA 4 DATA 3 DATA 2 DATA 1 DATA 0 W R_RE S E Tb W R_CL K IO_VDD 10n 1u +1.8V G ND _A B NC 4.7u R L 15 16 17 18 19 20 21 22 23 24 25 26 27 28 G ND _D R, L and C form the output return loss compensation network. Values are subject to change. C Sb_TMS S CL K_TC K S DOUT_TDO S DIN_TDI 10n W R_RE S E Tb W R_CL K G ND _D W R_R E S E Tb W R_CL K G ND _D S TAT 2 S TAT 1 S TAT 0 G ND _A Unused GSPI inputs should be pulled up to IO_VDD. IO_VDD Rt Rt Rt 10n Ct Ct Ct 1u G ND _D G ND _D G ND _D G ND _D Rt and Ct values based on GSPI trace layout. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 59 of 63 6. Package & Ordering Information 6.1 Package Dimensions GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 60 of 63 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 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 GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 61 of 63 6.4 Package Marking Pin 1 Indicator GS9092A XXXXE3 YYWW Instructions: GS9092A XXXX E3 YYWW Package Mark Last 4 digits (excluding decimal) of SAP Batch Assembly (FIN) as listed on Packing List Pb-free & Green indicator Date Code Figure 6-1: Package Marking 6.5 Ordering Information Part Number GS9092ACNE3 Package 56-pin QFN Temperature Range 0°C to 70°C Revision History Version 0 1 ECR 138237 140248 PCN – 39274 Date February 2006 April 2006 Changes and / or Modifications New document. Corrected termination dimensional tolerance on packaging diagram. Updated Figure 2-1 Pb-free solder reflow profile to 260oC. Modified serial output jitter parameters in AC Electrical Characteristics. 2 143060 42121 November 2006 3 4 152804 154185 – – October 2009 May 2010 Changed 6.1 Package Dimensions. Converted document back to Data Sheet. GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 62 of 63 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. Gennum reserves the right to make changes to the product at any time without notice to improve reliability, function or design, in order to provide the best product possible. GENNUM CORPORATE HEADQUARTERS 4281 Harvester Road, Burlington, Ontario L7L 5M4 Canada Phone: +1 (905) 632-2996 E-mail: corporate@gennum.com Fax: +1 (905) 632-2055 www.gennum.com OTTAWA 232 Herzberg Road, Suite 101 Kanata, Ontario K2K 2A1 Canada Phone: +1 (613) 270-0458 Fax: +1 (613) 270-0429 SNOWBUSH IP - A DIVISION OF GENNUM 439 University Ave. Suite 1700 Toronto, Ontario M5G 1Y8 Canada Phone: +1 (416) 925-5643 Fax: +1 (416) 925-0581 E-mail: sales@snowbush.com Web Site: http://www.snowbush.com GERMANY Hainbuchenstraße 2 80935 Muenchen (Munich), Germany Phone: +49-89-35831696 Fax: +49-89-35804653 E-mail: gennum-germany@gennum.com CALGARY 3553 - 31st St. N.W., Suite 210 Calgary, Alberta T2L 2K7 Canada Phone: +1 (403) 284-2672 NORTH AMERICA WESTERN REGION 691 South Milpitas Blvd., Suite #200 Milpitas, CA 95035 United States Phone: +1 (408) 934-1301 Fax: +1 (408) 934-1029 E-mail: naw_sales@gennum.com MEXICO 288-A Paseo de Maravillas Jesus Ma., Aguascalientes Mexico 20900 Phone: +1 (416) 848-0328 UNITED KINGDOM North Building, Walden Court Parsonage Lane, Bishop’s Stortford Hertfordshire, CM23 5DB United Kingdom Phone: +44 1279 714170 Fax: +44 1279 714171 JAPAN KK Shinjuku Green Tower Building 27F 6-14-1, Nishi Shinjuku Shinjuku-ku, Tokyo, 160-0023 Japan Phone: +81 (03) 3349-5501 Fax: +81 (03) 3349-5505 E-mail: gennum-japan@gennum.com Web Site: http://www.gennum.co.jp NORTH AMERICA EASTERN REGION 4281 Harvester Road Burlington, Ontario L7L 5M4 Canada Phone: +1 (905) 632-2996 Fax: +1 (905) 632-2055 E-mail: nae_sales@gennum.com INDIA #208(A), Nirmala Plaza, Airport Road, Forest Park Square Bhubaneswar 751009 India Phone: +91 (674) 653-4815 Fax: +91 (674) 259-5733 KOREA 8F Jinnex Lakeview Bldg. 65-2, Bangidong, Songpagu Seoul, Korea 138-828 Phone: +82-2-414-2991 Fax: +82-2-414-2998 E-mail: gennum-korea@gennum.com TAIWAN 6F-4, No.51, Sec.2, Keelung Rd. Sinyi District, Taipei City 11502 Taiwan R.O.C. Phone: (886) 2-8732-8879 Fax: (886) 2-8732-8870 E-mail: gennum-taiwan@gennum.com 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. www.gennum.com GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Data Sheet 34715 - 4 May 2010 63 of 63 63