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14 PRECISION CLOCK
GENERATOR
The precision clock generators (PCG) consist of four units, each of which
generates a pair of signals (clock and frame sync) derived from a clock
input signal. The units, A B, C, and D, are identical in functionality and
operate independently of each other. The two signals generated by each
unit are normally used as a serial bit clock/frame sync pair.
lists the PCG specifications.
Table 14-1. PCG Specifications
Feature
Connectivity
Multiplexed Pinout
SRU DAI Required
SRU DAI Default Routing
SRU2 DPI Required
SRU2 DPI Default Routing
Interrupt Control
Protocol
Master Capable
Slave Capable
Transmission Simplex
Transmission Half Duplex
Transmission Full Duplex
ADSP-214xx SHARC Processor Hardware Reference
www.BDTIC.com/ADI
PCGA–B
No
Yes
No
No
No
No
Yes
No
N/A
N/A
N/A
Table 14-1
PCGC–D
No
Yes
No
Yes
No
No
Yes
No
N/A
N/A
N/A
14-1
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