RL78/G15 CHAPTER 3 CPU ARCHITECTURE
R01UH0959EJ0110 Rev.1.10 Page 71 of 765
Mar 7, 2023
Remark For extended SFRs (2nd SFRs), see 3.3.5 Extended special function registers (2nd SFRs: 2nd Special
Function Registers).
Table 3-5. SFR List (1/2)
Address Special Function Register (SFR) Name Symbol R/W Manipulable Bit Range After Reset
1-bit 8-bit 16-bit
FFF00H Port register 0 P0 R/W — 00H
FFF02H Port register 2 P2 R/W — 00H
FFF04H Port register 4 P4 R/W — 00H
FFF0CH Port register 12 P12 R/W — Undefined
FFF0DH Port register 13 P13 R/W — Undefined
FFF10H Serial data register 00 TXD0/SIO00 SDR00 R/W — 0000H
FFF11H — — —
FFF12H Serial data register 01 RXD0/SIO01 SDR01 R/W — 0000H
FFF13H — — —
FFF18H Timer data register 00 TDR00 R/W — — 0000H
FFF19H
FFF1AH Timer data register 01 TDR01L TDR01 R/W — 00H
FFF1BH TDR01H — 00H
FFF1EH 10-bit A/D conversion result register ADCR R — — 0000H
FFF1FH 8-bit A/D conversion result register ADCRH R — — 00H
FFF20H Port mode register 0 PM0 R/W — FFH
FFF22H Port mode register 2 PM2 R/W — FFH
FFF24H Port mode register 4 PM4 R/W — FFH
FFF2CH Port mode register 12 PM12 R/W — FFH
FFF30H A/D converter mode register 0 ADM0 R/W — 00H
FFF31H Analog input channel specification register ADS R/W — 00H
FFF38H External interrupt rising edge enable register 0 EGP0 R/W — 00H
FFF39H External interrupt falling edge enable register 0 EGN0 R/W — 00H
FFF50H IICA shift register 0 IICA0 R/W — — 00H
FFF51H IICA status register 0 IICS0 R — 00H
FFF52H IICA flag register 0 IICF0 R/W — 00H
FFF60H Comparator mode setting register COMPMDR R/W — 00H
FFF61H Comparator filter control register COMPFIR R/W — 00H
FFF62H Comparator output control register COMPOCR R/W — 00H
FFF64H Timer data register 02 TDR02 R/W — — 0000H
FFF65H
FFF66H Timer data register 03 TDR03L TDR03 R/W — 00H
FFF67H TDR03H — 00H
FFF68H Timer data register 04 TDR04 R/W — — 0000H
FFF69H
FFF6AH Timer data register 05 TDR05 R/W — — 0000H
FFF6BH
FFF6CH Timer data register 06 TDR06 R/W — — 0000H
FFF6DH
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