UPD780138 Datasheet, PDF (75/558 Pages) NEC – 8-Bit Single-Chip Microcontrollers

CHAPTER 3 CPU ARCHITECTURE
Table 3-6. Special Function Register List (2/4)
Address
Special Function Register (SFR) Name
Symbol R/W
Manipulatable Bit Unit
1 Bit
8 Bits 16 Bits
FF2CH Port mode register 12
PM12
R/W
√
√
−
FF2EH Port mode register 14
PM14
R/W
√
√
−
FF30H Pull-up resistor option register 0
PU0
R/W
√
√
−
FF31H Pull-up resistor option register 1
PU1
R/W
√
√
−
FF33H Pull-up resistor option register 3
PU3
R/W
√
√
−
FF34H Pull-up resistor option register 4
PU4
R/W
√
√
−
FF35H Pull-up resistor option register 5
PU5
R/W
√
√
−
FF37H Pull-up resistor option register 7
PU7
R/W
√
√
−
FF38H Correction address register 0^{Note 1}
CORAD0
R/W
−
−
√
FF39H
FF3AH Correction address register 1^{Note 1}
CORAD1
R/W
−
−
√
FF3BH
FF3CH Pull-up resistor option register 12
PU12
R/W
√
√
−
FF3EH Pull-up resistor option register 14
PU14
R/W
√
√
−
FF40H Clock output selection register
CKS
R/W
√
√
−
FF41H 8-bit timer compare register 51
CR51
R/W
−
√
−
FF43H 8-bit timer mode control register 51
TMC51
R/W
√
√
−
FF48H External interrupt rising edge enable register
EGP
R/W
√
√
−
FF49H External interrupt falling edge enable register
EGN
R/W
√
√
−
FF4AH Serial I/O shift register 11^{Note 2}
SIO11
R
−
√
−
FF4CH Transmit buffer register 11^{Note 2}
SOTB11
R/W
−
√
−
FF4FH Input switch control register
ISC
R/W
√
√
−
FF50H Asynchronous serial interface operation mode ASIM6
R/W
√
√
−
register 6
FF53H Asynchronous serial interface reception error
ASIS6
R
−
√
−
status register 6
FF55H Asynchronous serial interface transmission
ASIF6
R
−
√
−
status register 6
FF56H Clock selection register 6
CKSR6
R/W
−
√
−
FF57H Baud rate generator control register 6
BRGC6
R/W
−
√
−
FF58H Asynchronous serial interface control register 6 ASICL6
R/W
√
√
−
FF60H Remainder data register 0
SDR0 SDR0L
R
−
√
√
FF61H
SDR0H
−
√
FF62H Multiplication/division data register A0
MDA0L MDA0LL R/W
−
√
√
FF63H
MDA0LH
−
√
FF64H
MDA0H MDA0HL R/W
−
√
√
FF65H
MDA0HH
−
√
FF66H Multiplication/division data register B0
MDB0 MDB0L R/W
−
√
√
FF67H
MDB0H
−
√
Notes 1. µPD780136, 780138, and 78F0138 only.
2. µPD780133, 780134, 78F0134, 780136, 780138, and 78F0138 only.
After
Reset
FFH
FFH
00H
00H
00H
00H
00H
00H
0000H
0000H
00H
00H
00H
00H
00H
00H
00H
00H
Undefined
00H
01H
00H
00H
00H
FFH
16H
00H
00H
00H
00H
00H
00H
00H
00H
User’s Manual U16228EJ2V0UD
75