SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 7
SC2200
Manufacturer Part Number
SC2200
Description
Thin Client On a Chip
Manufacturer
NSC [National Semiconductor]
Datasheet
1.SC2200.pdf
(433 pages)
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Revision 3.0
Table of Contents
5.3
5.4
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
5.2.11
5.2.12
REGISTER DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
5.3.1
5.3.2
CHIPSET REGISTER SPACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.4.6
5.4.7
(Continued)
AT Compatibility Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
5.2.6.1
5.2.6.2
5.2.6.3
I/O Ports 092h and 061h System Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
5.2.7.1
5.2.7.2
5.2.7.3
Keyboard Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
5.2.8.1
Power Management Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
5.2.9.1
5.2.9.2
5.2.9.3
5.2.9.4
5.2.9.5
Power Management Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
5.2.10.1
5.2.10.2
5.2.10.3
5.2.10.4
GPIO Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Integrated Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
5.2.12.1
5.2.12.2
5.2.12.3
5.2.12.4
5.2.12.5
5.2.12.6
5.2.12.7
5.2.12.8
PCI Configuration Space and Access Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Bridge, GPIO, and LPC Registers - Function 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
5.4.1.1
5.4.1.2
SMI Status and ACPI Registers - Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
5.4.2.1
5.4.2.2
IDE Controller Registers - Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
5.4.3.1
XpressAUDIO Registers - Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
5.4.4.1
X-Bus Expansion Interface - Function 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
5.4.5.1
USB Controller Registers - PCIUSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
ISA Legacy Register Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
DMA Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Programmable Interval Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Programmable Interrupt Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
I/O Port 092h System Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
I/O Port 061h System Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
SMI Generation for NMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Fast Keyboard Gate Address 20 and CPU Reset . . . . . . . . . . . . . . . . . . . . . . . . 166
CPU States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Sleep States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Power Planes Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Power Management Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Usage Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
APM Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
CPU Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Peripheral Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Power Management Programming Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Data Transport Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
AC97 Codec Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
VSA Technology Support Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
IRQ Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
LPC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
LPC Interface Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Cycle Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
LPC Interface Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
GPIO Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
LPC Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
SMI Status Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
ACPI Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
IDE Controller Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
XpressAUDIO Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
X-Bus Expansion Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
7
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