
Chapter 3
Hardware
CoreModule 420
Reference Manual
21
Address (hex)
Subsystem
0040-0043
Programmable Interrupt Timer (Clock/Timer)
0060-0064
Keyboard Controller
0070-0071
RTC/ NMI enable
0080-008F
DMA Page
0094
Motherboard VGA enable
00A0-00A1
Slave Interrupt Controller (#2)
00C0-00DF
Secondary DMA Controller (#2)
0102
VGA setup register
01F0-01F7
Primary IDE (configurable)
0170-0177
Secondary IDE (configurable)
0201
Watchdog trigger (configurable, disabled by default)
02E8-02EF
COM4 (configurable)
02F8-02FF
COM2 (configurable)
0376
Secondary IDE (see 170)
0378-037B
LPT 1 (configurable, disabled by default)
0378-037F
LPT 1 (only in EPP modes)
03B4-03B5
VGA registers (monochrome mode only)
03BA
VGA registers (monochrome mode only)
03C0-03CF
VGA registers
03D4-03D5
VGA registers (color mode only)
03DA
VGA registers (color mode only)
03E8-03EF
COM3 (configurable)
03F0-03F1
Super I/O Configuration
03F0-03F5
Floppy Disk Controller (configurable)
03F6
Primary IDE (see 1F0)
03F7
Floppy Disk Controller (see 3F0)
03F8-03FF
COM1 (configurable)
0778-077A
LPT 1 (only in ECP modes)
0CF8
PCI Configuration Address
0CFC-0CFF
PCI Configuration Data
46E8
VGA add-in mode enable register
D000-D007
General Purpose I/O for customer use
D400-D407
Board control
E400-E43F
On-Board Ethernet
E800-E80F
IDE Bus Master registers (PCI mode)
EC00-EC0F
Secondary IDE Control (PCI mode)
F000-F00F
Secondary IDE Command (PCI mode)
F400-F40F
Primary IDE Control (PCI mode)
F800-F80F
Primary IDE Command (PCI mode)
Note
: Configurable indicates the device’s base address can be configured and/or
the device can be disabled, either through BIOS Setup or hardware jumpers.
Summary of Contents for CoreModule 420
Page 1: ...CoreModule 420 PC 104 Single Board Computer Reference Manual P N 5001692A Revision A ...
Page 6: ...Contents vi Reference Manual CoreModule 420 ...
Page 10: ...Chapter 1 About this Manual 4 Reference Manual CoreModule 420 ...
Page 22: ...Chapter 2 Product Overview 16 Reference Manual CoreModule 420 ...
Page 50: ...Chapter 3 Hardware 44 Reference Manual CoreModule 420 ...
Page 64: ...Appendix A Technical Support 58 Reference Manual CoreModule 420 ...
Page 66: ...Appendix B Connector Part Numbers 60 Reference Manual CoreModule 420 ...
Page 70: ...Index 64 Reference Manual CoreModule 420 ...
Page 71: ......
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