STAC9766XXTAEC1X IDT, Integrated Device Technology Inc, STAC9766XXTAEC1X Datasheet - Page 68

• Manufacturer Part Number: STAC9766XXTAEC1X
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of STAC9766XXTAEC1X

• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 3.135/4.75V
• Single Supply Voltage (max): 3.465/5.25V
• Package Type: TQFP
• Lead Free Status / RoHS Status: Compliant

IDT™
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
8.3.
Extended CODEC Registers Page Structure Definition
8.3.1.
8.3.2.
8.3.3.
Bit(s)
1
0
Registers 60h-68h are the Extended CODEC Registers: These registers allow for the defi-
nition of further capabilities. These bits provide a paged address space for extended
CODEC information. The Page Selector bits in the Audio Interrupt and Paging register
(Register 24h bits 3:0) control the page of information viewed through this page window.
Extended Registers Page 00
Page 00 of the Extended CODEC Registers is reserved for vendor specific use. Driver writ-
ers should not access these registers unless the Vendor ID register has been checked first
to ensure that the vendor of the AC '97 component has been identified and the usage of the
vendor defined registers understood.
Extended Registers Page 01
The usage of Page 01 of the Extended CODEC Registers is defined in Register 24h found
in Section 8.1.17: page 57.
Extended Registers Page 02, 03
Pages 02 and 03 of the Extended CODEC Registers are reserved for future use.
Read / Write
Read / Write
Access
Reset
Value
x
x
Name
GI1
GI0
When GPIO1 is configured as output and Register h74 bit[0] = 0 (default),
the value of this register will be placed on the GPIO1 pad.
When GPIO1 is configured as output and Register h74 bit[0] = 1, the
GPIO1 pad will get its value from slot12.
When GPIO1 is configured as input and configured as a sticky, writing a
1 does nothing, writing a 0 clears this bit.
When GPIO1 is configured as input, this register reflects the value on the
GPIO1 pad after interpretation of the polarity and sticky configurations.
When GPIO0 is configured as output and Register h74 bit[0] = 0 (default),
the value of this register will be placed on the GPIO0 pad.
When GPIO0 is configured as output and Register h74 bit[0] = 1, the
GPIO0 pad will get its value from slot12.
When GPIO0 is configured as input and configured as a sticky, writing a
1 does nothing, writing a 0 clears this bit.
When GPIO0 is configured as input, this register reflects the value on the
GPIO0 pad after interpretation of the polarity and sticky configurations.
68
Description
STAC9766/9767
PC AUDIO
V 7.4 12/06