STAC9758 Datasheet, PDF (91/119 Pages) Integrated Device Technology – HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS

STAC9758/9759
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
PC AUDIO
8.6.8.
Function Select (66h Page 01h)
Register 24h must be set to Page 01h to access this register.
Default: 0000h
D15
D14
D13
D12
D11
D10
D9
D8
RESERVED
D7
D6
D5
D4
D3
D2
D1
D0
RESERVED
FC3
FC2
FC1
FC0
T/R
Bit(s) Reset Source R/W Reset Value Name
Description
15-5
n/a
RO
0
RESERVED Bit not used, should read back 0
4-1
Reset
RW
00h
FC3:FC0
Function Code bits:
00h - Line Out (Master Out)
01h - Head Phone Out (AUX Out)
02h - DAC 3 (C/LFE)
03h - SPDIF out
04h - Phone In
05h - Mic1 (Mic select =0)
06h - Mic2 (Mic select =1)
07h - Line In
08h - CD In
09h - Video In
0Ah - Aux In
0Bh - Mono Out
0Ch - SPDIF in
0Dh - VREF OUT
0E-0Fh - Reserved
For supported Jack and Mic Sense Functions, see
Table22: page96. The Function Code Bits are used to
read Register 68h (Page 01h) and Register 6Ah
(Page01h).
Mono I/O should report relevant sense and function
information on Tip, and report not supported on Ring. This
is true for the following Function codes:
0Bh (Mono Out) and 0Eh (SPDIF Out)
0
Reset
R/W
0
Setting the function code to unsupported values will return
a 0 when accessing the Information Valid Bit in page 01
register 68h bit 5.
Tip or Ring selection Bit. This bit sets which jack conductor
the sense value is measured from. Software will program
T/R
the corresponding the Ring/Tip selector bit together with
the I/O number in bits FC[3:0].
0 - Tip (Left)
1 - Ring (Right)
IDT™
91
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
STAC9758/9759
V 1.2 1206