CHAPTER 3 CPU ARCHITECTURE
User's Manual U11919EJ3V0UM00
59
Table 3-4. Special Function Registers (2/2)
Bit Units for Manipulation
Address
Special Function Register (SFR) Name
Symbol
R/W
1 Bit
8 Bits
16 Bits
After Reset
FFE0H
Interrupt request flag register 0
IF0
Ο
Ο
−
FFE1H
Interrupt request flag register 1
IF1
Ο
Ο
−
00H
FFE4H
Interrupt mask flag register 0
MK0
Ο
Ο
−
FFE5H
Interrupt mask flag register 1
MK1
Ο
Ο
−
FFH
FFECH
External interrupt mode register 0
INTM0
−
Ο
−
FFF5H
Key return mode register 00
KRM00
Ο
Ο
−
FFF7H
Pull-up resistor option register
PUO
Ο
Ο
−
FFF9H
Watchdog timer mode register
WDTM
Ο
Ο
−
00H
FFFAH
Oscillation settling time select register
OSTS
−
Ο
−
04H
FFFBH
Processor clock control register
PCC
R/W
Ο
Ο
−
02H
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