ADSP-214xx SHARC Processor Hardware Reference 10-5
Serial Ports
SRU Programming
Any of the serial port’s signals can be mapped to digital applications inter-
face (DAI_Px) pins through the signal routing unit (SRU) as shown in
Table 10-3. For more information, see Chapter 9, Digital Applica-
tion/Digital Peripheral Interfaces.
SPORTs 6 and 7 receive their clocks from other routed sources but
cannot route their own clocks to other SPORTs or other peripher-
als internally through the SRU. If SPORTs 6 and 7 are needed
externally, they have to be routed through the DAI pins.
Table 10-3. SPORT DAI/SRU Signal Connections
Internal Node DAI Connection SRU Register
Inputs
SPORT7–0_CLK_I Group A SRU_CLK1–0
SPORT7–0_FS_I Group C SRU_FS0
SPORT7–0_DA_I Group B SRU_DAT2–0
SPORT7–0_DB_I
Outputs
SPORT5–0_CLK_O Group A, D
SPORT7–6_CLK_O Group D
SPORT5–0_FS_O Group C, D, E
SPORT7–6_FS_O Group D
SPORT7–0_DA_O Group B, D
SPORT7–0_DB_O
SPORT7–0_TDV_O
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