Texas-instruments TMS320C64x DSP Bedienungsanleitung PDF herunterladen (Seite 24)

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101

Video Port FIFO

1-7OverviewSPRU629

For 8/10-bit raw video, the FIFO is split into channel A and B, as shown in

Figure 1–3. Each FIFO is clocked independently with the channel A FIFO

receiving data from the VDIN[9–0] half of the bus and the channel B FIFO

receiving data from the VDIN[19–10] half of the bus. Each channel’s FIFO has

a separate write pointer and read register (YSRCx). The FIFO configuration

is identical for TSI capture, but channel B is disabled.

Figure 1–3. 8/10-Bit Raw Video Capture and TSI Video Capture FIFO Configuration

VDIN[19–10]

8/10

Buffer B (2560 bytes)

Capture FIFO B

YSRCB

VDIN[9–0]

8/10

Buffer A (2560 bytes)

Capture FIFO A

YSRCA

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