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GS1661 Datasheet(PDF) 39 Page - Semtech Corporation |
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GS1661 Datasheet(HTML) 39 Page - Semtech Corporation |
39 / 84 page ![]() GS1661 HD/SD SDI Receiver Data Sheet 53751 - 3 September 2012 39 of 84 4.11 H:V:F Timing Signal Generation The GS1661 extracts critical timing parameters from the received TRS words. Horizontal blanking (H), Vertical blanking (V), and Field odd/even (F) timing are output on the STAT[2:0] pins by default. Using the H_CONFIG bit in the host interface, the H signal timing can be selected as one of the following: 1. Active line blanking (H_CONFIG = LOW) - the H output is HIGH for the horizontal blanking period, including the EAV TRS words. 2. TRS based blanking (H_CONFIG = HIGH) - the H output is set HIGH for the entire horizontal blanking period as indicated by the H bit in the received TRS signals. The timing of these signals is shown in Figure 4-8 below. NOTE: Both 8-bit and 10-bit TRS words are identified by the device. Figure 4-6: H:V:F Output Timing - HDTV 20-bit Mode Figure 4-7: H:V:F Output Timing - HDTV 10-bit Mode VIDEO ERROR 0111 − EDH DETECTED 1001 − CARRIER DETECT 1010 − RATE_DET 1011 − NOTE: Each of the STAT[5:0] pins are configurable individually using the register bits in the host interface; STAT[5:0]_CONFIG (008h/009h). Table 4-8: Output Signals Available on Programmable Multi-Function Pins (Continued) Status Signal Selection Code Default Output Pin PCLK LUMA DATA CHROMA DATA H 000 000 3FF 000 000 3FF V F XYZ (SAV) 000 000 3FF 000 000 3FF XYZ (SAV) XYZ (EAV) XYZ (EAV) 000 000 3FF 3FF 000 000 PCLK (HD) H V F MULTIPLEXED Y’CbCr DATA (HD) 000 000 3FF 3FF 000 000 XYZ (EAV) MULTIPLEXED Y’CbCr DATA (HD) H V F PCLK (HD) H S IGN A L T IM IN G : H_ C O NF IG = L O W H _ C ONF IG = H IGH HVF T IM IN GAT SAV HVF T IM IN GAT EAV XYZ (EAV) XYZ (SAV) XYZ (SAV) |
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