B. Memory & I/O Maps - Teknor Industrial Computers VIPer 821 Technical Reference Manual

B. MEMORY & I/O MAPS
B.1 MEMORY MAPPING
Address
00000-9FFFF
A0000-BFFFF
C0000-CBFFF
D000-D3FF
D400-D700
E0000-FFFFF
100000-Top of DRAM
B.2 I/O MAPPING
Address Optional Add.
000-01F
020-03F
040-05F
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0-0F1, 0F8-0FF
190-197 290-297
1F0-1F7, 3F6
170-177, 376
3F0-3F7 370-377
378-37A 3BC-3BE
3F8-3FF (COM1) 2F8-2FF (COM2)
2F8-2FF (COM2) 3F8-3FF (COM1)
3C0-3CF, 3D0-3DF, 3B0-3BB
Function
0-640 KB DRAM
64KB Video Memory
32KB Video BIOS
Optional: Flash window
Optional: TEKNOR BIOS Extension
64KB Main BIOS
1 MB - Top of DRAM
Optional Add.
390-397
278-27A
3E8-3EF (COM3)
3E8-3EF (COM3)
B-1
Optional Add.
DMA Controller 1
Interrupt Controller 1
Timers
Keyboard
Real-time clock
DMA Page Register
Interrupt Controller 2
DMA Controller 2
Math Coprocessor
TEKNOR Control Port
Primary IDE
Secondary IDE
Floppy Disk
Parallel Port (LPT1 by default)
2E8-2EF (COM4) Serial Port 1 (COM1 by default)
2E8-2EF (COM4) Serial Port 2 (COM2 by default)
Graphics Controller (I2C Port)
Function