ST10F269Z2QX View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST10F269Z2QX' PDF : 161 Pages View PDF
ST10F269Z2Qx
12.3 - PORT0
The two 8-bit ports P0H and P0L represent the
higher and lower part of PORT0, respectively.
Both halves of PORT0 can be written (via a PEC
transfer) without effecting the other half.
If this port is used for general purpose I/O, the
direction of each line can be configured via the
corresponding direction registers DP0H and
DP0L.
P0L (FF00h / 80h)
SFR
Reset Value: --00h
15 14 13 12 11 10 9
-
-
-
-
-
-
-
8
7
6
5
4
3
2
1
0
- P0L.7 P0L.6 P0L.5 P0L.4 P0L.3 P0L.2 P0L.1 P0L.0
RW RW RW RW RW RW RW RW
P0H (FF02h / 81h)
SFR
Reset Value: --00h
15 14 13 12 11 10 9
-
-
-
-
-
-
-
8
7
6
5
4
3
2
1
0
- P0H.7 P0H.6 P0H.5 P0H.4 P0H.3 P0H.2 P0H.1 P0H.0
RW RW RW RW RW RW RW RW
P0X.y
Port Data Register P0H or P0L Bit y
DP0L (F100h / 80h)
ESFR
Reset Value: --00h
15 14 13 12 11 10 9 8
7
6
5
4
3
2
1
0
- - - - - - - - DP0L.7 DP0L.6 DP0L.5 DP0L.4 DP0L.3 DP0L.2 DP0L.1 DP0L.0
RW
RW
RW
RW
RW
RW
RW
RW
DP0H (F102h / 81h)
ESFR
Reset Value: --00h
15 14 13 12 11 10 9 8
7
6
5
4
3
2
1
0
- - - - - - - - DP0H.7 DP0H.6 DP0H.5 DP0H.4 DP0H.3 DP0H.2 DP0H.1 DP0H.0
RW
RW
RW
RW
RW
RW
RW
RW
DP0X.y
Port Direction Register DP0H or DP0L Bit y
DP0X.y = 0: Port line P0X.y is an input (high-impedance)
DP0X.y = 1: Port line P0X.y is an output
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