821054PQF Integrated Device Technology (Idt), 821054PQF Datasheet - Page 26

• Manufacturer Part Number: 821054PQF
• Description: Audio Codec 4ADC / 4DAC 64-Pin PQFP
• Manufacturer: Integrated Device Technology (Idt)
• Type: PCMr

Specifications of 821054PQF

• Package: 64PQFP
• Number Of Channels: 4ADC /4 DAC
• Number Of Dacs: 4
• Operating Supply Voltage: 5 V

IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
GREG8: SLIC Ring Trip Setting and Control, Read/Write (27H/A7H)
GREG9: SI Data, Read Only (28H)
CS[1:0] = 10:
CS[1:0] = 11:
The PCM data Offset Configuration bits (OC[2:0]) determine that the transmit and receive time slots of PCM data offset from the FS
signal by how many periods of BCLK:
OC[2:0] = 000:
OC[2:0] = 001:
OC[2:0] = 010:
OC[2:0] = 011:
OC[2:0] = 100:
OC[2:0] = 101:
OC[2:0] = 110:
OC[2:0] = 111:
The Output Polarity Indicator bit (OPI) indicates the valid polarity of output:
OPI = 0:
OPI = 1:
The Input Polarity Indicator bit (IPI) indicates the valid polarity of input:
IPI = 0:
IPI = 1:
The Input Selection bit (IS) determines which input will be selected as the off-hook indication signal source.
IS = 0:
IS = 1:
The Ring Trip Enable bit (RTE) enables or disables the ring trip function block:
RTE = 0:
RTE = 1:
The Output Selection bits (OS[2:0]) determine which output will be selected as the ring control signal source.
OS[2:0] = 000 - 010:
OS[2:0] = 011:
OS[2:0] = 100:
OS[2:0] = 101:
OS[2:0] = 110:
OS[2:0] = 111:
The SIA[3:0] bits contain the debounced data (off-hook status) on the SI1 pins of Channel 4 to Channel 1 respectively.
The SIB[3:0] bits contain the debounced data (ground key status) on the SI2 pins of Channel 4 to Channel 1 respectively.
Command
Command
I/O data
I/O data
SIB[3]
R/W
OPI
b7
b7
0
SB2 is selected (when SB2 is configured as an output);
SB3 is selected (when SB3 is configured as an output);
transmits data on falling edges of BCLK, receives data on falling edges of BCLK.
transmits data on falling edges of BCLK, receives data on rising edges of BCLK.
0 period of BCLK (default);
1 period of BCLK;
2 periods of BCLK;
3 periods of BCLK;
4 periods of BCLK;
5 periods of BCLK;
6 periods of BCLK;
7 periods of BCLK.
the selected output pin changes from low to high to activate the ring (default);
the selected output pin changes from high to low to activate the ring.
active low (default);
active high.
SI1 is selected (default);
SI2 is selected.
the ring trip function block is disabled (default);
the ring trip function block is enabled.
not defined;
SB1 is selected (when SB1 is configured as an output);
SO1 is selected;
SO2 is selected.
Reserved
SIB[2]
b6
b6
0
0
SIB[1]
IPI
b5
b5
1
1
SIB[0]
26
b4
b4
IS
0
0
SIA[3]
RTE
b3
b3
0
1
OS[2]
SIA[2]
b2
b2
1
0
INDUSTRIAL TEMPERATURE RANGE
SIA[1]
OS[1]
b1
b1
1
0
SIA[0]
OS[0]
b0
b0
1
0