Z51F3220FNX Datasheet, PDF (67/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
9.2.7 Register Map
Table 9-1 Port Register Map
Name
P0
P0IO
P0PU
P0OD
P0DB
P0FSRH
P0FSRL
P1
P1IO
P1PU
P1OD
P15DB
P1FSRH
P1FSRL
P2
P2IO
P2PU
P2OD
P2FSRH
P2FSRL
P3
P3IO
P3PU
P3FSR
P4
P4IO
P4PU
P4OD
P4FSR
P5
P5IO
P5PU
P5FSR
Address
80H
A1H
ACH
91H
DEH
D3H
D2H
88H
B1H
ADH
92H
DFH
D5H
D4H
90H
B9H
AEH
93H
D7H
D6H
98H
C1H
AFH
EEH
A0H
C9H
A3H
94H
EFH
B0H
D1H
95H
EFH
Dir
Default
Description
R/W
00H
P0 Data Register
R/W
00H
P0 Direction Register
R/W
00H
P0 Pull-up Resistor Selection Register
R/W
00H
P0 Open-drain Selection Register
R/W
00H
P0 Debounce Enable Register
R/W
00H
P0 Function Selection High Register
R/W
00H
P0 Function Selection Low Register
R/W
00H
P1 Data Register
R/W
00H
P1 Direction Register
R/W
00H
P1 Pull-up Resistor Selection Register
R/W
00H
P1 Open-drain Selection Register
R/W
00H
P1/P5 Debounce Enable Register
R/W
00H
P1 Function Selection High Register
R/W
00H
P1 Function Selection Low Register
R/W
00H
P2 Data Register
R/W
00H
P2 Direction Register
R/W
00H
P2 Pull-up Resistor Selection Register
R/W
00H
P2 Open-drain Selection Register
R/W
00H
P2 Function Selection High Register
R/W
00H
P2 Function Selection Low Register
R/W
00H
P3 Data Register
R/W
00H
P3 Direction Register
R/W
00H
P3 Pull-up Resistor Selection Register
R/W
00H
P3 Function Selection Register
R/W
00H
P4 Data Register
R/W
00H
P4 Direction Register
R/W
00H
P4 Pull-up Resistor Selection Register
R/W
00H
P4 Open-drain Selection Register
R/W
00H
P4 Function Selection Register
R/W
00H
P5 Data Register
R/W
00H
P5 Direction Register
R/W
00H
P5 Pull-up Resistor Selection Register
R/W
00H
P5 Function Selection Register
PS029902-0212
PRELIMINARY
64