stac9752xxtaeb2xr Integrated Device Technology, stac9752xxtaeb2xr Datasheet - Page 71

• Manufacturer Part Number: stac9752xxtaeb2xr
• Description: Two-channel, 20-bit, Ac ?97 2.3 Codecs With Microphone And Jack Sensing
• Manufacturer: Integrated Device Technology

IDT™
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
STAC9752/9753
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
8.4.4.
Bit(s) Reset Value
15-5
4-1
0
Function Code
D15
D7
Function Select (66h
Register 24h must be set to Page 01h to access this register.
Default: 0000h
Note: This register does not reset on RESET#.
00h
01h
05h
06h
00h
0
RESERVED
D14
D6
Reserved Reserved
FC3:FC0
Name
T/R
Table 21. Supported Jack and Microphone Sense Functions
Headphone_Out
Function Code bits:
00h - Line Out (Master Out)
01h - Head Phone Out (AUX Out)
02h - DAC 3 (C/LFE) - Not Supported
03h - SPDIF out
04h - Phone In
05h - Mic1 (Microphone select = 0)
06h - Mic2 (Microphone select = 1)
07h - Line In
08h - CD In
09h - Video In
0Ah - Aux In
0Bh - Mono Out
0C-0Fh - Reserved
For supported Jack and Microphone Sense Functions, see Table21: page71.
The Function Code Bits are used to read Register 68h (Page 01h) and Register
6Ah (Page 01h).
Mono I/O should report relevant sense and function information on Tip, and report
Not-Supported on Ring.
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 the corresponding the Ring/Tip selector bit
together with the I/O number in bits FC[3:0].
0 - Tip (Left)
1 - Ring (Right)
Line_Out
Page 01h
D13
D5
Mic1
Mic2
I/O
)
FC3
D12
71
D4
Setting the T/R bit to 0 = Left,1 = Right
RESERVED
D11
FC2
D3
Description
Microphone Sense
Microphone Sense
Sense Capability
STAC9752/9753
D10
FC1
D2
Jack Sense
Jack Sense
FC0
D9
D1
REV 3.3 1206
T/R
D8
D0