82801CA Datasheet, PDF (504/521 Pages) Intel Corporation – I/O Controller Hub 3-S (ICH3-S)

Register Index
Table A-2. Intel^® ICH3 Fixed I/O Registers (Continued)
Register Name
Aliased at 20–21h
Aliased at 20–21h
Aliased at 20–21h
Aliased at 20–21h
Aliased at 20–21h
Aliased at 20–21h
Aliased at 20–21h
Aliased at 20–21h
Counter 0 Interval Time Status Byte
Format
Counter 0 Counter Access Port
Register
Counter 1 Interval Time Status Byte
Format
Counter 1 Counter Access Port
Register
Counter 2 Interval Time Status Byte
Format
Counter 2 Counter Access Port
Register
Timer Control Word Register
Timer Control Word Register Read
Back
Counter Latch Command
Aliased at 40–43h
NMI Status and Control Register
NMI Enable Register
Real-Time Clock (Standard RAM)
Index Register
Real-Time Clock (Standard RAM)
Target Register
Extended RAM Index Register
Extended RAM Target Register
Aliased at 70–71h
Aliased at 72–73h or 70–71h
Port
24–25h
28–29h
24–25h
2C–2Dh
30–31h
34–35h
38–39h
3C–3Dh
40h
41h
42h
43h
50–53h
61h
70h
70h
71h
72h
73h
74–75h
76–77h
Datasheet Section and Location
Section 9.3.2, “SBYTE_FMT—Interval Timer Status
Byte Format Register” on page 9-307
Section 9.3.3, “Counter Access Ports Register” on
page 9-307
Section 9.3.2, “SBYTE_FMT—Interval Timer Status
Byte Format Register” on page 9-307
Section 9.3.3, “Counter Access Ports Register” on
page 9-307
Section 9.3.2, “SBYTE_FMT—Interval Timer Status
Byte Format Register” on page 9-307
Section 9.3.3, “Counter Access Ports Register” on
page 9-307
Section 9.3.1, “TCW—Timer Control Word Register” on
page 9-305
Section 9.3.1.1, “RDBK_CMD—Read Back Command”
on page 9-306
Section 9.3.1.2, “LTCH_CMD—Counter Latch
Command” on page 9-306
Section 9.7.1, “NMI_SC—NMI Status and Control
Register” on page 9-327
Section 9.7.2, “NMI_EN—NMI Enable (and Real Time
Clock Index) Register” on page 9-328
Table 9-7 “RTC (Standard) RAM Bank” on page 9-323
Section 9.7.2, “NMI_EN—NMI Enable (and Real Time
Clock Index) Register” on page 9-328
Table 9-7 “RTC (Standard) RAM Bank” on page 9-323
Aliased if U128E bit in RTC Configuration Register is
enalbed
Section 9.1.24, “RTC_CONF—RTC Configuration
Register (LPC I/F—D31:F0)” on page 9-289
Aliased to 70–71h if U128E bit in RTC Configuration
Register is enalbed
Section 9.1.24, “RTC_CONF—RTC Configuration
Register (LPC I/F—D31:F0)” on page 9-289
504
Intel^® 82801CA ICH3-S Datasheet