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CHAPTER 3 CPU ARCHITECTURE
Address Special-Function Register (SFR) Name Symbol R/W After Reset
FFEAH Priority order specify flag register 1L PR1L R/W √√— FFH
FFECH External interrupt mode register 0 INTM0 — √ — 00H
FFEDH External interrupt mode register 1 INTM1 — √ —
FFF0H Memory size switching register IMS — √ —
(Note)
FFF2H Oscillation mode selection register OSMS W — √ — 00H
FFF3H Pull-up resistor option register H PUOH R/W √√—
FFF7H Pull-up resistor option register L PUOL √√—
FFF9H Watchdog timer mode register WDTM √√—
FFFAH
Oscillation stabilization time select register
OSTS — √ — 04H
FFFBH Processor clock control register PCC √√—
Table 3-2. Special-Function Register List (2/2)
Manipulatable Bit Unit
8 bits1 bit 16 bits
Note The value after reset depends on products.
µ
PD78081 : 82H,
µ
PD78082 : 64H,
µ
PD78P083 : 46H.