CHAPTER 3 CPU FUNCTIONS
User’s Manual U13850EJ4V0UM
96
(1/7)
Bit Units for Manipulation
Address
Function Register Name
Symbol
R/W
1 Bit
8 Bits 16 Bits 32 Bits
After Reset
FFFFF000H
Port 0
P0
√
√
FFFFF002H
Port 1
P1
√
√
FFFFF004H
Port 2
P2
√
√
FFFFF006H
Port 3
P3
√
√
FFFFF008H
Port 4
P4
√
√
FFFFF00AH
Port 5
P5
√
√
FFFFF00CH
Port 6
P6
R/W
√
√
00H
Note
FFFFF00EH
Port 7
P7
√
√
FFFFF010H
Port 8
P8
R
√
√
Undefined
FFFFF012H
Port 9
P9
√
√
FFFFF014H
Port 10
P10
√
√
FFFFF016H
Port 11
P11
√
√
00H
Note
FFFFF020H
Port 0 mode register
PM0
√
√
FFH
FFFFF022H
Port 1 mode register
PM1
√
√
3FH
FFFFF024H
Port 2 mode register
PM2
√
√
FFFFF026H
Port 3 mode register
PM3
√
√
FFFFF028H
Port 4 mode register
PM4
√
√
FFFFF02AH
Port 5 mode register
PM5
√
√
FFH
FFFFF02CH
Port 6 mode register
PM6
√
√
3FH
FFFFF032H
Port 9 mode register
PM9
√
√
7FH
FFFFF034H
Port 10 mode register
PM10
√
√
FFH
FFFFF036H
Port 11 mode register
PM11
√
√
1FH
FFFFF040H
Port alternate function control register
PAC
√
√
FFFFF04CH
Memory expansion mode register
MM
√
√
00H
FFFFF060H
Data wait control register
DWC
√
FFFFH
FFFFF062H
Bus cycle control register
BCC
√
AAAAH
FFFFF064H
System control register
SYC
R/W
√
√
FFFFF068H
Memory address output mode register
MAM
W
√
00H
FFFFF070H
Power save control register
PSC
√
√
C0H
FFFFF074H
Processor clock control register
PCC
√
√
03H
FFFFF078H
System status register
SYS
√
√
FFFFF080H
Pull-up resistor option register 0
PU0
√
√
FFFFF082H
Pull-up resistor option register 1
PU1
√
√
FFFFF084H
Pull-up resistor option register 2
PU2
√
√
FFFFF086H
Pull-up resistor option register 3
PU3
√
√
FFFFF094H
Pull-up resistor option register 10
PU10
R/W
√
√
00H
Note
Resetting initializes registers to input mode and 00H cannot actually be read.