Siemens SIMATIC IPC677D - Page 144

Technical information
8.5 Hardware descriptions
SIMATIC IPC677D
144 Operating Instructions, 09/2014, A5E32995420-AC
I/O address
(hex)
Size
[byte]
Description of the basic function
Alternative function
From
To
0040
0043
4
System timer
0044
004D
10
<Not used>
004E
004F
2
Motherboard resources
0050
0053
4
System timer
0054 005F 12 <Not used>
0060
0060
1
Keyboard controller
0061
0061
1
Motherboard resources
0062
0062
1
<Not used>
0063
0063
1
Motherboard resources
0064
0064
1
Keyboard controller
0065
0065
1
Motherboard resources
0066
0066
1
<Not used>
0067
0067
1
Motherboard resources
0068
006F
8
<Not used>
0070
0070
1
Motherboard resources
Cascaded
0070
0077
8
System CMOS/real-time clock
0078
007F
8
<Not used>
0080
0080
1
Motherboard resources
0081
0091
17
DMA controller
0092
0092
1
Motherboard resources
0093
009F
13
DMA controller
00A0
00A1
2
Programmable interrupt controller
00A2
00A3
2
<Not used>
00A4 00A5 2 Programmable interrupt controller
00A6
00A7
2
<Not used>
00A8
00A9
2
Programmable interrupt controller
00AA
00AB
2
<Not used>
00AC
00AD
2
Programmable interrupt controller
00AE
00AF
2
<Not used>
00B0
00B1
2
Programmable interrupt controller
00B2
00B3
2
Motherboard resources
00B4
00B5
2
Programmable interrupt controller
00B6
00B7
2
<Not used>
00B8
00B9
2
Programmable interrupt controller
00BA
00BB
2
<Not used>
00BC
00BD
2
Programmable interrupt controller
00BE
00BF
2
<Not used>
00C0
00DF
32
DMA controller
00E0
00EF
16
<Not used>
00F0
00F0
1
Numeric data processor