Datasheet

12 - PARALLEL PORTS ST10F269
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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.
P5 (FFA2h / D1h) SFR Reset Value: XXXXh
1514131211109876543210
P5.15 P5.14 P5.13 P5.12 P5.11 P5.10 P5.9 P5.8 P5.7 P5.6 P5.5 P5.4 P5.3 P5.2 P5.1 P5.0
RRRRRRRRRRRRRRRR
P5.y Port Data Register P5 Bit y (Read only)
MUX
0
1
"0"
Open Drain
Latch
Write ODP4.x
Read ODP4.x
Direction
Latch
Write DP4.x
Read DP4.x
Internal Bus
MUX
0
1
Input
Latch
Clock
P4.xOutput
Buffer
Port Output
Latch
Read P4.x
Write P4.x
Alternate
Data
Output
MUX
0
1
MUX
0
1
"1"
MUX
Alternate
Function
Enable
MUX
0
1
"1"
MUX
MUX
0
1
"0"
MUX
0
1
MUX
≤ 1
CANy.TxD
XPERCON.a
(CANyEN)
XPERCON.b
(CANzEN)
Data output
x = 6, 7
y = 1, 2 (CAN Channel)
z = 2, 1
a = 0, 1
b = 1, 0