UPD75238GJ NEC [NEC], UPD75238GJ Datasheet - Page 25

• Manufacturer Part Number: UPD75238GJ
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC [NEC]

Address
FDAH
FDCH
FD0H
FD4H
FD6H
FD8H
FE0H
FE2H
FE4H
FE6H
FE8H
FECH
Clock output mode register (CLOM)
Static mode register B (STATB)
Static mode register A (STATA)
A/D conversion mode register (ADM)
SA register (SA)
Pull-up resistor specification register group
A (POGA)
Serial operation mode register (CSIM0)
SBI control register (SBIC)
Serial I/O shift register 0 (SIO0)
Slave address register (SVA)
Port mode register group A (PMGA)
Port mode register group B (PMGB)
CMDD
CSIE0
BSYE
PM33
PM63
SOC
PM7
b3
–
Hardware name (symbol)
ACKD
PM32
PM62
RELD
EOC
PM2
COI
b2
–
CMDT
ACKE
PM31
PM61
WUP
PM5
b1
Table 2-4
–
ACKT
PM30
PM60
RELT
PM4
b0
–
PD75238 I/O Map (3/4)
R/W
R/W
R/W
R/W
R/W
W
W
W
W
W
W
W
W
R
1 bit 4 bits 8 bits
Number of ma-
nipulatable bits
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit manipu-
lation ad-
dressing
mem.bit
mem.bit
ADM is write only
during 8-bit manipu-
lation.
CSIM0 is write only
during 8-bit manipu-
lation.
PD75238
Remarks
25