
Chapter 2. Getting Started
14
8905F02-02
On-board Master DMAC
On-board Master Interrupt Controller
On-board Timer/Counters
Keyboard & System Ports
Fast Reset & Gate A20 Port
STD 32 or PCI
100-1EFh
60-6Fh
40-4Fh
0-1Fh
20-2Fh
On-board Real-Time Clock
70-77h
On-board DMA Page Registers
81-8Fh
92h
IDE Registers
1F0-1F7h
STD 32 or PCI
1F8-1FFh
200-2F7h
COM2
2F8-2FFh
300-3AFh
3B0-3DFh
STD 32 or PCI
3F0-3F7h
PCI
3F8-3FFh
400-3FFFh
4000-4FFFh
5000-BFFFh
C000-CFFFh
D000-DFFFh
E000-FFFFh
VGA Registers
Floppy / IDE Registers
COM1
PCI or STD 32
PCI Config
STD 32 or PCI
(set by VGA location)
PCI
STD 32 or PCI
64 K
0
PCI
30-3Fh
50-5Fh
90-91h
93-9Fh
STD 32 or PCI
3E0-3EFh
(IOEXP driven low for
addresses FC00h-FFFFh)
(878h = System Register 1)
Diagnostic Port
80h
79h-7Fh
78h
ZT 8905 System Register 0
F0-FF
E0-EF
C0-DF
B0-BFh
A0-AF
Coprocessor
On-board Slave DMAC
On-board Slave
Interrupt Controller
I/O Address Map
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com