st10f269z1 STMicroelectronics, st10f269z1 Datasheet - Page 72

• 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
(pins P3.15, P3.14 and P3.12 do not support open
drain mode).
P3 (FFC4h / E2h)
DP3 (FFC6h / E3h)
ODP3 (F1C6h / E3h)
72/184
P3.15
P3.y
DP3.y
ODP3.y
DP3
RW
RW
RW
.15
15
15
15
-
RW
RW
RW
14
14
14
-
-
-
ODP3
P3.13 P3.12 P3.11 P3.10 P3.9
DP3
RW
RW
RW
.13
.13
13
13
13
Port Data Register P3 Bit y
Port Direction Register DP3 Bit y
DP3.y = 0: Port line P3.y is an input (high-impedance)
DP3.y = 1: Port line P3.y is an output
Port 3 Open Drain Control Register Bit y
ODP3.y = 0: Port line P3.y output driver in push-pull mode
ODP3.y = 1: Port line P3.y output driver in open drain mode
DP3
RW
RW
RW
.12
12
12
12
-
ODP3
DP3
RW
RW
RW
.11
.11
11
11
11
ODP3
DP3
RW
RW
RW
.10
.10
10
10
10
ODP3
DP3
RW
RW
RW
.9
.9
9
9
9
ODP3
P3.8
DP3
RW
RW
RW
.8
.8
8
8
8
ESFR
SFR
SFR
ODP3
P3.7
DP3
RW
RW
RW
Due to pin limitations register bit P3.14 is not
connected to an output pin.
.7
.7
7
7
7
ODP3
P3.6
DP3
RW
RW
RW
.6
.6
6
6
6
ODP3
P3.5
DP3
RW
RW
RW
.5
.5
5
5
5
ODP3
P3.4
DP3
RW
RW
RW
.4
.4
4
4
4
ODP3
P3.3
DP3
RW
RW
RW
.3
.3
3
3
3
Reset Value: 0000h
Reset Value: 0000h
Reset Value: 0000h
ODP3
P3.2
DP3
RW
RW
RW
.2
.2
2
2
2
ODP3
ST10F269
P3.1
DP3
RW
RW
RW
.1
.1
1
1
1
ODP3
P3.0
DP3
RW
RW
RW
.0
.0
0
0
0