st10f269z1 STMicroelectronics, st10f269z1 Datasheet - Page 86

• Manufacturer Part Number: st10f269z1
• Description: St10f269 16-bit Mcu With Mac Unit, 256k Byte Flash Memory And 12k Byte Ram
• Manufacturer: STMicroelectronics

12 - PARALLEL PORTS
12.10 - Port 7
If this 8-bit port is used for general purpose I/O, the direction of each line can be configured via the
corresponding direction register DP7. Each port line can be switched into push-pull or open drain mode
via the open drain control register ODP7.
P7 (FFD0h / E8h)
DP7 (FFD2h / E9h)
ODP7 (F1D2h / E9h)
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P7.y
DP7.y
ODP7.y
15
15
15
-
-
-
14
-
14
14
-
-
13
-
13
13
-
-
12
Port Data Register P7 Bit y
Port Direction Register DP7 Bit y
DP7.y = 0: Port line P7.y is an input (high impedance)
DP7.y = 1: Port line P7.y is an output
Port 7 Open Drain Control Register Bit y
ODP7.y = 0: Port line P7.y output driver in push-pull mode
ODP7.y = 1: Port line P7.y output driver in open drain mode
-
12
12
-
-
11
-
10
11
11
-
-
-
9
-
10
10
-
-
8
-
9
9
-
-
ODP7.7 ODP7.6 ODP7.5 ODP7.4 ODP7.3 ODP7.2 ODP7.1 ODP7.0
RW
7
8
8
-
-
ESFR
SFR
SFR
RW
DP7.7 DP7.6 DP7.5 DP7.4 DP7.3 DP7.2 DP7.1 DP7.0
P7.7
6
RW
RW
7
7
P7.6
RW
RW
RW
5
6
6
P7.5
RW
RW
RW
5
5
4
P7.4
RW
RW
4
4
RW
3
P7.3
RW
RW
3
3
RW
2
Reset Value: --00h
Reset Value: --00h
Reset Value: --00h
P7.2
RW
RW
2
2
RW
1
ST10F269
P7.1
RW
RW
1
1
RW
P7.0
RW
RW
0
0
0