SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Some applications require multiple camera sources to be used at the same time. For this type of device, one solution would be to support N-number of 8-bit or 16-bit data interfaces for each of N cameras. However, this solution does not efficiently minimize pin count. One set of 8-bit or 16-bit interfaces has the bandwidth to support more than one video source, depending on the resolution of the video. Table 11-12 is explanatory only and shows the number of sources that can be multiplexed in one VIP for 8-bit and 16-bit interface modes. Note that it does not reflect the capabilities of the VIP_PARSER. In addition, the interface pixel clock rates are shown. The VPDMA limits 16 camera sources to be saved to DDR memory per Pixel Clock Input Domain.
Maximum Channels in Single 16-bit Data Interface Mode | Maximum Channels in Dual 8-bit Data Interface Mode - Interleaved Channels per Single 8-bit Port. One 16-bit VIP can be configured to support two such 8-bit ports. | Interface Clock Rate (MHz) | |
HD Interlaced | 2 | 1 | 148.5 |
D1 Interlaced | 8 | 4 | 108.1 |
CIF Interlaced | n/a | n/a | n/a |
HD Progressive | 1 | n/a | 148.5 |
D1 Progressive | 4 | 2 | 108.1 |
CIF Progressive (1) | 32 | 16 | 162.2 |
These Channel Density values reflect one VIP subsystem.