SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
Table 6-130 lists some blanking and latency details for VIS submodules.
IP | Blanking | Latency | ||
---|---|---|---|---|
Vertical (in number of lines) | Horizontal (in pixel clock cycles) | Vertical (in number of lines) | Horizontal (in pixel clock cycles) | |
RawFE | 2 - DPC Enable 0 - DPC Disable | 8 | 2 - DPC Enable 0 - DPC Disable | 50 |
CAC | 6 | 20 | 6 | 24 |
NSF4V | 15 | 28 | 15 | 44 |
NSF4V.DWB | 0 | 7 | 0 | 7 |
GLBCE | - (1) | 5 | 1 | 61 |
CFA | 1 | 5 | 3 | |
FCC | 0 | 20 | 1 (2) | 25 |
EE | 2 | 2 | 2 | 29 |
NSF4V | 15 | 28 | 15 | 44 |
The VARIANCEINTENSITY and VARIANCESPACE parameters (in Table 6-130 notes) affect the sensitivity of the transforms across different parts of the frame. Both parameters can be configured through the GLBCE_VARIANCE register.
In Table 6-130, the vertical blanking/latencies are expressed in number of lines (except for GLBCE), and horizontal blanking/latency is expressed in number of pixel clock cycles.
Horizontal blanking, buffer depth and HTS programming parameters (Threshold and PostLoad) depend on VISS frame mode or line mode of operation (selected via LSE_CFG_LSE[5] IN_CH_SYNC_MODE register field). Frame mode is the recommended mode of operation, and line mode is primarly used for debug purposes.
LSE will automatically generate required vertical blanking until all output channels produce HTS_EOP, and GLBCE processing is complete (when GLBCE is enabled). In the vertical blanking window, LSE generates dummy lines (data = 0x0) following frame width paramter. LSE prematurely ends line w/o HE marker once vertical blanking requirement is met (that is, processing is done and HTS_EOP is generated).