2 direct memory access channels, 3 legacy i/o map, Direct memory access channels – ADLINK Express-HR User Manual
Page 32: Legacy i/o map

Express-HR User’s Manual
Page 32
8.2 Direct Memory Access Channels
Channel Number
Data Width
System Resource
Comment
0
8-bits
Open
1
8-bits
Open
2
8-bits
Open
3
8-bits
Open
4
Reserved - cascade channel
5
16-bits
Open
6
16-bits
Open
7
16-bits
Open
8.3 Legacy I/O Map
Address Range (hex)
Description
000-01F
DMA controller 1, 8237A-5 equivalent
020-02D and 030-03F
Interrupt controller 1, 8259 equivalent
02E-02F
LPC SIO (Win 83627DHG) configuration index/data registers
04E-04F
TPM
040-042, 050-052
Timer, 8254-2 equivalent
060, 062, 064, 066
8742 equivalent (keyboard)
061
NMI control and status
070-077
Real Time Clock Controller( bit 7 -NMI mask)
080-091
DMA page register
092
Reset (Bit 0)/ Fast Gate A20 (Bit 1)
093-09F
DMA page registers continued
0A0-0B1 and 0B4-0BD
Interrupt controller 2, 8259 equivalent
0B2 and 0B3
APM control
0C0-0DF
DMA controller 2, 8237A-5 equivalent
0F0
Read: PCI and Master abort. (Note 1)
Write: FERR#/ IGNNE# /Interrupt controller
170-177 and 1F0-1F7
SATA controller or PCI
376 and 3F6
2F8
COM2
3F8
COM1
4D0 and 4D1
Interrupt controller
CF9
Reset Control register (8 bit I/O)
4700
TPM
E000-E03F
Graphics
E040-E05F
SMbus
E060-E07F
82579Lan
E080-E137
SATA
E140-E147
Remote Keyboard and Text (KT)(When iAMT support)