STAC9752 datasheet(68/95 Pages) IDT

68 / 95 page

STAC9752/9753

TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING

IDT™

STAC9752/9753

REV 3.3 1206

TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING

8.3.

Extended CODEC Registers Page Structure Definition

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.

8.3.1.

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.

8.3.2.

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.

8.3.3.

Extended Registers Page 02, 03

Pages 02 and 03 of the Extended CODEC Registers are reserved for future use.

STAC9752 Datasheet(PDF) 68 Page - Integrated Device Technology