C868_02 Datasheet, PDF (47/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
On-Chip Peripheral Components
P1
Port 1 Register
-
-
r
r
[Reset value: XXX11111_B]
94_H
93_H
92_H
91_H
90_H
-
P1[4:0]
r
rw
Field
P1.4-0
-
Bits Typ Description
[4:0] rw Port 1 Latch.
This SFR appears at address 90_H, only if bit RMAP
(SYSCON0.4) is ‘0’.
[7:5] r
reserved;
returns ’0’ if read; should be written with ’0’;
P1DIR
Port 1 Direction Register
-
-
-
r
r
r
[Reset value: XXX11111_B]
94_H
93_H
92_H
91_H
90_H
P1DIR[4:0]
rw
Field
P1DIR.4-0
-
Bits Typ Description
[4:0] rw Port 1 Direction Register.
This SFR appears at address 90_H, only if bit RMAP
(SYSCON0.4) is ‘1’
0: The associated pin is an output.
1: The associated pin is an input (default).
[7:5] r
reserved;
returns ’0’ if read; should be written with ’0’;
User’s Manual
4-3
V 0.4, 2002-01