Allocation Of The System Resources Used By Bios/Dos; I/O Address Allocation - Siemens Simatic IPC647C Operating Instructions Manual

Detailed descriptions
16.4 System resources
16.4.2

Allocation of the system resources used by BIOS/DOS

The following table describes the system resources for the factory state of the device.
16.4.2.1

I/O address allocation

I/O address (hex)
from
0000
0010
0020
0022
0040
0044
0060
0061
0062
0064
0067
0070
0076
0081
0090
00A0
00A2
00C0
00E0
00F0
0110
0170
0178
01F0
01F8
0200
0208
02E8
02F8
0300
0320
174
Size Description of the basic function
(bytes)
to
000F 16 DMA controller
001F 16 Motherboard resources
0021 2 Programmable interrupt controller
003F 30 Motherboard resources
0043 4 System timer
005F 28 Motherboard resources
0060 1 Keyboard controller
0061 1 System loudspeaker
0063 2 Motherboard resources
0064 1 Keyboard controller
006F 9 Motherboard resources
0075 6 System CMOS/real-time clock
0080 11 Motherboard resources
008F 15 DMA controller
009F 16 Motherboard resources
00A1 2 Programmable interrupt controller
00BF 30 Motherboard resources
00DF 32 DMA controller
00EF 16 Motherboard resources
00FE 15 Numeric data processor
016F 96 Not used
0177 8 Secondary EIDE channel
01EF 120 Not used
01F7 8 Primary EIDE channel
01FF 8 Not used
0207 8 Reserved for game port
02E7 224 Not used
02EF 8 Reserved
02FF 8 COM2
031F 32 Not used
032F 16 Not used
Possible alternative
function
Switchable in Setup,
then free
Switchable in Setup,
then free
Operating Instructions, 12/2010, A5E02669337-02
SIMATIC IPC647C