UPD784020 Datasheet, PDF (27/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCOMPUTER

mPD784020, 784021
Table 7-1 Special Function Registers (SFRs) (4/4)
Address^Note
Special function register (SFR) name
0FFCCH
0FFCDH
0FFCFH
0FFD0H-
0FFDFH
0FFE0H
0FFE1H
0FFE2H
0FFE3H
0FFE4H
0FFE5H
0FFE6H
0FFE7H
0FFE8H
0FFE9H
0FFEAH
0FFEBH
0FFECH
0FFEDH
0FFEEH
0FFEFH
0FFF0H
0FFF1H
0FFF2H
0FFF3H
0FFF4H
Refresh mode register
Refresh area specification register
Oscillation settling time specification register
External SFR area
Interrupt control register (INTP0)
Interrupt control register (INTP1)
Interrupt control register (INTP2)
Interrupt control register (INTP3)
Interrupt control register (INTC00)
Interrupt control register (INTC01)
Interrupt control register (INTC10)
Interrupt control register (INTC11)
Interrupt control register (INTC20)
Interrupt control register (INTC21)
Interrupt control register (INTC30)
Interrupt control register (INTP4)
Interrupt control register (INTP5)
Interrupt control register (INTAD)
Interrupt control register (INTSER)
Interrupt control register (INTSR)
Interrupt control register (INTCSI1)
Interrupt control register (INTST)
Interrupt control register (INTCSI)
Interrupt control register (INTSER2)
Interrupt control register (INTSR2)
Interrupt control register (INTCSI2)
Interrupt control register (INTST2)
Abbreviation
RFM
RFA
OSTS
–
R/W
R/W
Manipulatable bits
When reset
1 bit 8 bits 16 bits
l
l
– 00H
l
l
–
–
l
–
l
l
–
–
PIC0
PIC1
PIC2
PIC3
CIC00
CIC01
CIC10
CIC11
CIC20
CIC21
CIC30
PIC4
PIC5
ADIC
SERIC
SRIC
CSIIC1
STIC
CSIIC
SERIC2
SRIC2
CSIIC2
STIC2
l
l
– 43H
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
l
l
–
Note Applicable when the LOCATION 0 instruction is executed. When the LOCATION 0FH instruction is
executed, F0000H is added to each address.
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