CHAPTER 3 CPU ARCHITECTURE
User’s Manual U12978EJ3V0UD
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Table 3-2. Special Function Register List (3/3)
Address Special Function Register (SFR) Name Symbol R/W Manipulatable Bit Unit After Reset
1 Bit 8 Bits 16 Bits
FFECH External interrupt mode register 0 INTM0 R/W — √ — 00H
FFF5H Key return mode register 00 KRM00 √√—
FFF7H Pull-up resistor option register 0 PU0 √√—
FFF9H Watchdog timer mode register WDTM √√—
FFFAH Oscillation stabilization time select register OSTS — √ — 04H
FFFBH Processor clock control register PCC √√— 02H
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