PCD5096 Просмотр технического описания (PDF) - Philips Electronics
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PCD5096 Datasheet PDF : 52 Pages
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Philips Semiconductors
Universal codec
Preliminary specification
PCD5096
Table 7 Selection of functional test modes for Codec 1 and Codec 2
CDC2TM2
CDC1TM2
0
0
0
0
1
1
1
1
CDC2TM1
CDC1TM1
0
0
1
1
0
0
1
1
CDC2TM0
CDC1TM0
0
normal operation
1
1 bit analog
0
1 bit digital
1
1 bit closed loop
0
4fs codec
1
4fs DSP
0
4fs closed loop
1
PCM probe
FUNCTIONAL TEST MODE
8.3.3 CONTROL REGISTER 1 (CR1)
Table 8 Control Register 1 (address 79H)
2
IOM2
1
IOM1
0
IOM0
Table 9 Description of CR1 bits
BIT
SYMBOL
DESCRIPTION
2
IOM2 These 3 bits select the IOM mode; see Table 10.
1
IOM1
0
IOM0
Table 10 Selection of IOM mode
IOM2
0
0
0
0
1
1
1
1
IOM1
0
0
1
1
0
0
1
1
IOM0
0
1
0
1
0
1
0
1
IOM MODE
inactive
not used
IOM slave 256 kbits/s in 4 speech-slots/speech-frame
IOM slave 512 kbits/s in 8 speech-slots/speech-frame
IOM slave 768 kbits/s in 12 speech-slots/speech-frame
IOM slave 1024 kbits/s in 16 speech-slots/speech-frame
SpeechPro slave 2048 kbits/s in 32 speech-slots/speech-frame; note 1
IOM slave 2048 kbits/s in 32 speech-slots/speech-frame
Note
1. The SpeechPro mode is similar to the IOM slave 32 slots mode, but with a non-doubled data clock DCL.
1997 Jan 22
14
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