UPD784031 Datasheet, PDF (25/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD784031
Table 7-1. Special Function Registers (SFRs) (3/4)
Address^{Note 1}
Special function register (SFR) name
Manipulatable bits
Abbreviation R/W
When reset
1 bit 8 bits 16 bits
0FF84H
Synchronous serial interface mode register 1 CSIM1
R/W o
o
- 00H
0FF85H
Synchronous serial interface mode register 2 CSIM2
o
o
-
0FF86H
Serial shift register
SIO
-
o
-
0FF88H
Asynchronous serial interface mode register ASIM
o
o
-
0FF89H
Asynchronous serial interface mode register 2 ASIM2
o
o
-
0FF8AH
Asynchronous serial interface status register ASIS
R
o
o
-
0FF8BH
Asynchronous serial interface status register 2 ASIS2
o
o
-
0FF8CH
Serial receive buffer: UART0
RXB
-
o
- Undefined
Serial transmission shift register: UART0
TXS
W
-
o
-
Serial shift register: IOE1
SIO1
R/W -
o
-
0FF8DH
Serial receive buffer: UART2
RXB2
R
-
o
-
Serial transmission shift register: UART2
TXS2
W
-
o
-
Serial shift register: IOE2
SIO2
R/W -
o
-
0FF90H
Baud rate generator control register
BRGC
-
o
- 00H
0FF91H
Baud rate generator control register 2
BRGC2
-
o
-
0FFA0H
External interrupt mode register 0
INTM0
o
o
-
0FFA1H
External interrupt mode register 1
INTM1
o
o
-
0FFA4H
Sampling clock selection register
SCS0
-
o
-
0FFA8H
In-service priority register
ISPR
R
o
o
-
0FFAAH
Interrupt mode control register
IMC
R/W o
o
- 80H
0FFACH
Interrupt mask register 0L
MK0L MK0
o
o
o FFFFH
0FFADH
Interrupt mask register 0H
MK0H
o
o
0FFAEH
Interrupt mask register 1L
MK1L
o
o
- FFH
0FFC0H
Standby control register
STBC
- o^{Note 2} -
30H
0FFC2H
Watchdog timer mode register
WDM
- o^{Note 2} -
00H
0FFC4H
Memory expansion mode register
MM
o
o
- 20H
0FFC5H
Hold mode register
HLDM
o
o
- 00H
0FFC6H
Clock output mode register
CLOM
o
o
-
0FFC7H
Programmable wait control register 1
PWC1
-
o
- AAH
0FFC8H
Programmable wait control register 2
PWC2
-
-
o AAAAH
Notes 1. Applicable when the LOCATION 0 instruction is executed. When the LOCATION 0FH instruction is
executed, F0000H is added to each address.
2. A write operation can be performed only with special instructions MOV STBC,#byte and MOV
WDM,#byte. Other instructions cannot perform a write operation.
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