st10f269z1 STMicroelectronics, st10f269z1 Datasheet - Page 80

• 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
Figure 33 : Block Diagram of P4.6 and P4.7 Pins
12.8 - Port 5
This 16-bit input port can only read data. There is no output latch and no direction register. Data written to
P5 will be lost.
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P5 (FFA2h / D1h)
P5.15 P5.14 P5.13 P5.12 P5.11 P5.10 P5.9
P5.y
15
R
CANy.TxD
Data output
XPERCON.a
(CANyEN)
XPERCON.b
(CANzEN)
14
R
Write ODP4.x
Read ODP4.x
13
Write DP4.x
Open Drain
Port Output
R
Read DP4.x
Write P4.x
Read P4.x
Direction
Port Data Register P5 Bit y (Read only)
Latch
Latch
Latch
12
R
11
R
MUX
1
1
0
Alternate
Function
Enable
Alternate
Data
Output
10
R
"0"
"1"
R
9
1
0
1
0
1
0
P5.8
MUX
MUX
MUX
R
8
SFR
"0"
P5.7
R
7
P5.6
1
0
R
6
MUX
MUX
"1"
P5.5
1
0
R
5
MUX
MUX
P5.4
1
0
R
MUX
MUX
4
Clock
Latch
Input
Output
Buffer
P5.3
x = 6, 7
y = 1, 2 (CAN Channel)
z = 2, 1
a = 0, 1
b = 1, 0
R
3
Reset Value: XXXXh
P5.2
R
2
ST10F269
P5.1
R
1
P4.x
P5.0
R
0