50 CP9*, CR9*, CT9* Celeron M/Pentium M
Publication No. HRMCP9 Rev. B
6.2.1
Standard Register Set
The standard register set is the same as the standard PC/AT systems. The table
below provides an overview of the address ranges occupied by these registers.
Table 6-2 Standard Register Set
I/O Address Range (Hex)
Function
0000 - 000F
DMA Controller 1
0020 - 0021
Interrupt Controller 1
0040 - 0043
Counter / Timer
0060
Keyboard Controller
0061
NMI Status and Control
0064
Keyboard Controller
0070 - 0071
RTC, NMI Mask
0080 - 008F
DMA Page register
00A0 - 00A1
Interrupt Controller 2
00B2 - 00B3
Power Management
00C0 - 00DE
DMA Controller 2
00F0 - 00F1
Coprocessor
0160 - 016F
Reserved
b
0170 - 0177
Secondary EIDE
01F0 - 01F7
Primary EIDE
0278 - 027F
LPT
a
02E8 - 02EF
COM port
a
02F8 - 02FF
COM port
a
0378 - 037F
LPT
a
03BC - 03BF
LPT
a
03E8 - 03EF
COM port
a
03F2 - 03F7
Floppy
03F8 - 03FF
COM1 port
a
a
Via setup three address ranges can be defined for the parallel interfaces and four address ranges for the serial
interfaces.
b
Used for onboard programmable options. They are not intended to be used from normal users. For more
explanation please check the ‘Board Specific Hardware Programmer’s Manual’
6.2.2
Plug and Play Devices
See ‘Board Specific Hardware Programmer’s Manual’.