Datasheet

ST10F269 12 - PARALLEL PORTS
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Figure 32 : Block Diagram of P4.4 and P4.5 Pins
Direction
Latch
Write DP4.x
Read DP4.x
Port Output
Latch
Write P4.x
Read P4.x
Internal Bus
MUX
0
1
MUX
0
1
Alternate
Data
Output
MUX
0
1
“1”
Input
Latch
Clock
P4.x
x = 5, 4
Alternate
Function
Enable
0
1
“0”
MUX
MUX
0
1
“0”
Output
Buffer
&
≤ 1
y = 1, 2 (CAN Channel)
z = 2, 1
a = 0, 1
b = 1, 0
CANy.RxD
XPERCON.a
XPERCON.b
(CANyEN)
(CANzEN)