STAC9752A Datasheet, PDF (78/106 Pages) Integrated Device Technology – AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK

STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
PC AUDIO
Default: 0000h
D15
D14
D13
D12
D11
D10
D9
D8
Reserved
D7
D6
D5
D4
D3
D2
D1
D0
Reserved
SPOR
DO1
RSVD
Bit(s) Reset Value
15:3
0
2
0
1
0
0
0
Name
Reserved
SPOR
DO1
Reserved
Description
Bits not used, should read back 0
Over-ride Register 2Ah, D12 write-lock when SPDIF_EN = 1.
All bits except SPDIF sample-rate are affected (D13-D12). Allows for sub-code
changing on-the-fly.
SPDIF Digital Output Source Selection:
DO1 = 0; PCM data from the AC-Link to SPDIF
DO1 = 1; ADC record data to SPDIF
Bits not used, should read back 0
7.4.7.
Sense Details (6Ah Page 01h)
Register 24h must be set to Page 01h to access this register.
Default: NA
D15
D14
D13
D12
D11
D10
D9
D8
ST2
ST1
ST0
S4
S3
S2
S1
S0
D7
D6
D5
D4
D3
D2
D1
D0
OR1
OR0
SR5
SR4
SR3
SR2
SR1
SR1
Bit(s) Reset Value Name
Description
15-13
Connector/Jack location bits
This field describes the location of the jack in the system.
0h - Rear I/O Panel
1h - Front Panel
ST2:ST0 2h - Motherboard
3h - Dock/External
4h:6h - Reserved
7h - No Connection/unused I/O
These bits are Read/Write.
12-8
S4:S0
Sensed bits meaning relates to the I/O being sense as output or inputs.
Sensed bits (outputs): See Table 26: page79.
This field allows for the reporting of the type of output peripheral/device plugged in
the jack. Values specified below should be interrogated in conjunction with the
SR[5:0] and OR[1:0] bits for accurate reporting.
Sensed bits (inputs): See Table 27: page79.
This field allows for the reporting of the type of input peripheral/device plugged in
the jack. Values specified below should be interrogated in conjunction with the
SR[5:0] and OR[1:0] bits for accurate reporting.
This field is Read Only.
IDT™
78
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
V 1.5 1206