Z51F3220FNX Datasheet, PDF (76/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
9.9 Port Function
9.9.1 Port Function Description
Port function control registers consist of Port function selection register 0 ~ 5. (P0FSRH/L ~ P5FSR).
9.9.2 Register description for P0FSRH/L ~ P5FSR
P0FSRH (Port 0 Function Selection High Register) : D3H
7
6
5
4
3
–
–
P0FSRH5 P0FSRH4 P0FSRH3
–
–
R/W
R/W
R/W
2
P0FSRH2
R/W
1
0
P0FSRH1 P0FSRH0
R/W
R/W
Initial value : 00H
P0FSRH[5:4]
P0FSRH[3:2]
P0FSRH[1:0]
P07 Function Select
P0FSRH5 P0FSRH4 Description
0
0
I/OPort (EINT5 function possible when
input)
0
1
SEG22 Function
1
0
AN5 Function
1
1
PWM4CB Function
P06 Function Select
P0FSRH3 P0FSRH2 Description
0
0
I/OPort (EINT4 function possible when
input)
0
1
SEG23 Function
1
0
AN4 Function
1
1
PWM4CA Function
P05 Function Select
P0FSRH1 P0FSRH0 Description
0
0
I/OPort (EINT3 function possible when
input)
0
1
SEG24 Function
1
0
AN3 Function
1
1
PWM4BB Function
PS029902-0212
PRELIMINARY
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