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IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
INDUSTRIAL TEMPERATURE RANGE
Table - 4 Local Registers (LREG) Mapping
Name
Function
Register Byte
Read
Command
Write
Command
Default Value
b7
b6
b5
b4
b3
b2
b1
b0
LREG1
Coefficient selection
CS[7]
CS[6]
CS[5]
CS[4]
CS[3]
CS[2]
CS[1]
CS[0]
00H
80H
08H
LREG2
Local loopbacks
control and SLIC input
interrupt enable
IE[4]
IE[3]
IE[2]
IE[1]
IE[0]
DLB_PCM ALB_1BIT DLB_1BIT
01H
81H
00H
LREG3
DSH and GK
debounce filters
configuration
GK[3]
GK[2]
GK[1]
GK[0]
DSH[3]
DSH[2]
DSH[1]
DSH[0]
02H
82H
00H
LREG4
SLIC IO status/control
data
Reserved
SO2
SO1
SB3
SB2
SB1
SI2
SI1
03H
83H
LREG5
Transmit highway and
time slot selection
THS
TT[6]
TT[5]
TT[4]
TT[3]
TT[2]
TT[1]
TT[0]
04H
84H
00H for CH1
01H for CH2
02H for CH3
03H for CH4
LREG6
Receive highway and
time slot selection
RHS
RT[6]
RT[5]
RT[4]
RT[3]
RT[2]
RT[1]
RT[0]
05H
85H
00H for CH1
01H for CH2
02H for CH3
03H for CH4
LREG7
PCM data low byte
PCM[7]
PCM[6]
PCM[5]
PCM[4]
PCM[3]
PCM[2]
PCM[1]
PCM[0]
06H
00H
LREG8
PCM data high byte
PCM[15] PCM[14]
PCM[13]
PCM[12]
PCM[11]
PCM[10]
PCM[9]
PCM[8]
07H
00H
LREG9
Channel power down,
A/D and D/A gains,
PCM cutoff
PD
PCMCT
GAD
GDA
0
08H
88H
80H
LREG10
Tone generator
enable and tone
program enable
Reserved
1
TEN1
TEN0
09H
89H
00H