ETX-CV
User’s Manual
Page 32
7.2
I/O Address Map
Address (hex)
Size
Description
0000 – 001F
32 bytes
DMA controller
0020 – 0021
2 bytes
Interrupt controller
0024 – 0025
2 bytes
Interrupt controller
0028 – 0029
2 bytes
Interrupt controller
002C – 002D
2 bytes
Interrupt controller
002E - 002F
2 bytes
LPC SIO
0030 – 0031
2 bytes
Interrupt controller
0034 – 0035
2 bytes
Interrupt controller
0038 – 0039
2 bytes
Interrupt controller
003C – 003D
2 bytes
Interrupt controller
0040 – 0043
4 bytes
Counter/Timer
0048 – 004B
4 bytes
Counter/Timer
004E – 004F
2 bytes
TPM configuration port
0050 – 0053
4 bytes
Counter/Timer
0060
1 byte
Keyboard controller
0061
1 byte
NMI, speaker control
0063
1 byte
NMI controller
0064
1 byte
Keyboard controller
0065
1 byte
NMI controller
0067
1 byte
NMI controller
0070 – 0071
2 bytes
Real time clock controller
0072 – 0073
2 bytes
Real time clock controller
0074 – 0075
2 bytes
Real time clock controller
0076 – 0077
2 bytes
Real time clock controller
0080 – 0091
18 bytes
DMA controller
0092
1 bytes
Reset Generator
0093 – 009F
13 bytes
DMA controller
00A0 – 00A1
2 bytes
Interrupt controller
00A4 – 00A5
2 bytes
Interrupt controller
00A8 – 00A9
2 bytes
Interrupt controller
00AC – 00AD
2 bytes
Interrupt controller
00B0 – 00B1
2 bytes
Interrupt controller
00B2 – 00B3
2 bytes
Power Management
00B4 – 00B5
2 bytes
Interrupt controller
00B8 – 00B9
2 bytes
Interrupt controller
00BC – 00BD
2 bytes
Interrupt controller
00C0 – 00DF
32 bytes
DMA controller
00F0 – 00FF
16 bytes
Numeric processor
0170 – 0177
8 bytes
Secondary IDE controller
01F0 – 01F7
8 bytes
Primary IDE controller
0274 – 0277
4 bytes
ISA PnP read port
0278 – 027F
8 bytes
LPT2
0290 – 029F
16 bytes
Onboard Sensor index(0x295)/data port (0x296)
02E8 – 02EF
8 bytes
COM4/Video