IDT821068 OCTAL PROGRAMMABLE PCM CODEC
INDUSTRIAL TEMPERATURE RANGE
CCLK
CS
Don't Care
CI
7654 3210
65 4321 0 765 4321 0
Command
Byte
Identification
Code
Data
Byte 1
CO
High 'Z'
'1' '0' '0' '0' '0' '0' '0' '1' 7 6 5 4 3 2 1 0
Figure 2. An Example of Serial Interface Read Mode (ID = 81h)
FS
BCLK
Single Clock
BCLK
Double Clock
Bit 7
Time Slot 0
Transmit
Receive
PCM Clock Slope Bits
in Global Command 7:
CS = 000
CS = 001
CS = 010
CS = 011
CS = 100
CS = 101
CS = 110
CS = 111
Figure 3. Sampling Edge Select Waveform
6