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C161 Datasheet(PDF) 139 Page - Infineon Technologies AG

Part # C161
Description  16-Bit Single-Chip Microcontroller
PDF  400 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

C161 Datasheet(HTML) 139 Page - Infineon Technologies AG

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&3,
3DUDOOHO 3RUWV
User’s Manual
7-13
1999-08
7.5
PORT1
The two 8-bit ports P1H and P1L represent the higher and lower part of PORT1,
respectively. Both halfs of PORT1 can be written (e.g. via a PEC transfer) without
effecting the other half.
If this port is used for general purpose IO, the direction of each line can be configured
via the corresponding direction registers DP1H and DP1L.
P1L
PORT1 Low Register
SFR (FF04
H/82H)
Reset Value: - - 00
H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
P1L
.7
P1L
6
P1L
.5
P1L
.4
P1L
.3
P1L
.2
P1L
.1
P1L
.0
-
-
-
-
-
-
-
-
rw
rw
rw
rw
rw
rw
rw
rw
P1H
PORT1 High Register
SFR (FF06
H/83H)
Reset Value: - - 00
H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
P1H
.7
P1H
.6
P1H
.5
P1H
.4
P1H
.3
P1H
.2
P1H
.1
P1H
.0
-
-
-
-
-
-
-
-
rw
rw
rw
rw
rw
rw
rw
rw
Bit
Function
P1X.y
Port data register P1H or P1L bit y
DP1L
P1L Direction Ctrl. Register
ESFR (F104
H/82H)
Reset Value: - - 00
H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
DP1
L.7
DP1
L.6
DP1
L.5
DP1
L.4
DP1
L.3
DP1
L.2
DP1
L.1
DP1
L.0
-
-
-
-
-
-
-
-
rw
rw
rw
rw
rw
rw
rw
rw
DP1H
P1H Direction Ctrl. Register
ESFR (F106
H/83H)
Reset Value: - - 00
H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
DP1
H.7
DP1
H.6
DP1
H.5
DP1
H.4
DP1
H.3
DP1
H.2
DP1
H.1
DP1
H.0
-
-
-
-
-
-
-
-
rw
rw
rw
rw
rw
rw
rw
rw



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