
82801AA and 82801AB Datasheet
A-15
Register Index
PCM In Position In Current Buffer
08h
Section 12.2.5, “x_PICB—Position In Current Buffer
Register” on page 12-12
PCM In Prefetched Index Value
0Ah
Section 12.2.6, “x_PIV—Prefetched Index Value
Register” on page 12-12
PCM In Control Register
0Bh
Section 12.2.7, “x_CR—Control Register” on
page 12-13
PCM Out Buffer Descriptor list Base
Address Register
10h
Section 12.2.1, “x_BDBAR—Buffer Descriptor Base
Address Register” on page 12-10
PCM Out Current Index Value
14h
Section 12.2.2, “x_CIV—Current Index Value
Register” on page 12-10
PCM Out Last Valid Index
15h
Section 12.2.3, “x_LVI—Last Valid Index Register” on
page 12-10
PCM Out Status Register
16h
Section 12.2.4, “x_SR—Status Register” on
page 12-11
PCM Out Position In Current Buffer
18h
Section 12.2.5, “x_PICB—Position In Current Buffer
Register” on page 12-12
PCM Out Prefetched Index Value
1Ah
Section 12.2.6, “x_PIV—Prefetched Index Value
Register” on page 12-12
PCM Out Control Register
1Bh
Section 12.2.7, “x_CR—Control Register” on
page 12-13
Mic. In Buffer Descriptor list Base
Address Register
20h
Section 12.2.1, “x_BDBAR—Buffer Descriptor Base
Address Register” on page 12-10
Mic. In Current Index Value
24h
Section 12.2.2, “x_CIV—Current Index Value
Register” on page 12-10
Mic. In Last Valid Index
25h
Section 12.2.3, “x_LVI—Last Valid Index Register” on
page 12-10
Mic. In Status Register
26h
Section 12.2.4, “x_SR—Status Register” on
page 12-11
Mic In Position In Current Buffer
28h
Section 12.2.5, “x_PICB—Position In Current Buffer
Register” on page 12-12
Mic. In Prefetched Index Value
2Ah
Section 12.2.6, “x_PIV—Prefetched Index Value
Register” on page 12-12
Mic. In Control Register
2Bh
Section 12.2.7, “x_CR—Control Register” on
page 12-13
Global Control
2Ch
Section 12.2.8, “GLOB_CNT—Global Control
Register” on page 12-14
Global Status
30h
Section 12.2.9, “GLOB_STA—Global Status Register”
on page 12-14
Codec Access Semaphore Register
34h
Section 12.2.10, “CAS—Codec Access Semaphore
Register” on page 12-16
Table A-3. ICH Variable I/O Registers (Sheet 4 of 5)
Register Name
Offset
Datasheet Section and Location