STAC9758 Datasheet, PDF (96/119 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
8.6.12.
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) R/W Reset Value Name
Description
15-13 RW
see table
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 RO
S4:S0
Sensed bits meaning relates to the I/O being sense as output or inputs.
Sensed bits (outputs): See Table 22: page96.
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 22: page96.
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.
7-6 RO
OR1:0
Order Bits. These bits indicate the order the sense result bits SR[5:0] are
using.
00 - 10⁰ (i.e., Ohms)
01 - 10¹ (i.e., 10 Ohms)
10 - 10² (i.e., 100 Ohms)
11 - 10³ (i.e., 1K Ohms)
5-0 RO
Sense Result bits
SR5:SR0 These bits are used to report a vendor specific fingerprint or value.
(Resistance, impedance, reactance, ect). This field is Read Only.
Table 22. Sensed Bits
Reported Value
Input or Output Peripheral/Device
0h
Data not valid. Indicates that the reported value(s) is (are) invalid.
1h
No connection. Indicates that there are no connected devices.
2h-9h
Not used by STAC9758/9759
Ah
Indicates that Sense results are reported as binary values in SR[5:0] and OR[1:0].
Bh-Eh
Reserved
Fh
Not used by STAC9758/9759
IDT™
96
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
STAC9758/9759
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