st10f269z1 STMicroelectronics, st10f269z1 Datasheet - Page 78

• 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 31 : Block Diagram of a Port 4 Pin
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Read DP4.y
Write DP4.y
Port Output
Write P4.y
Read P4.y
Direction
Latch
Latch
MUX
Alternate
Data
Output
1
0
Alternate
Function
Enable
“1”
1
0
1
0
MUX
MUX
Clock
Latch
Input
Output
Buffer
y = 7...0
ST10F269
P4.y