Frame Syncs In Multichannel Mode - Analog Devices ADSP-21261 SHARC Hardware Reference Manual

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SPORT Operation Modes

Figure 9-5. Multichannel Operation

Frame Syncs in Multichannel Mode

All receiving and transmitting devices in a multichannel system must have

the same timing reference. The

indicating the start of a block (or frame) of multichannel data words. Pairs

of SPORTs share the same frame sync signal for multichannel mode—

for SPORT0/1,

When multichannel mode is enabled on a SPORT0/1, SPORT2/3, or

SPORT4/5 pair, both the transmitter and receiver use the

true whether

nally or externally. This signal synchronizes the channels and restarts each

multichannel sequence. The

initiates the beginning of the channel 0 data word.

SPORTs are paired when multichannel mode is selected;

transmit/receive directions are fixed. SPORTS 0, 2, and 4 act as

transmitters, and SPORTs 1, 3, and 5 act as receivers.

signals respectively as a frame sync. This is

ADSP-2126x SHARC Processor Hardware Reference

signal is used for this reference,

for SPORT2/3, and

is generated inter-

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