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RL78/G1A CHAPTER 3 CPU ARCHITECTURE
R01UH0305EJ0200 Rev.2.00 68
Jul 04, 2013
Table 3-5. SFR List (2/5)
Manipulable Bit Range Address
Special Function Register (SFR) Name
Symbol R/W
1-bit 8-bit 16-bit
After Reset
FFF34H Key return control register KRCTL R/W
√ √ −
00H
FFF35H Key return flag register KRF R/W
√ √ −
00H
FFF36H Key return mode control register 1 KRM1 R/W
√ √ −
00H
FFF37H Key return mode control register 0 KRM0 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
FFF3AH External interrupt rising edge
enable register 1
EGP1 R/W
√ √ −
00H
FFF3BH External interrupt falling edge
enable register 1
EGN1 R/W
√ √ −
00H
FFF44H TXD1/
SIO10
− √
FFF45H
Serial data register 02
−
SDR02 R/W
− −
√
0000H
FFF46H RXD1/
SIO11
− √
FFF47H
Serial data register 03
−
SDR03 R/W
− −
√
0000H
FFF48H TXD2/
SIO20
− √
FFF49H
Serial data register 10
−
SDR10 R/W
− −
√
0000H
FFF4AH RXD2/
SIO21
− √
FFF4BH
Serial data register 11
−
SDR11 R/W
− −
√
0000H
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
FFF64H
FFF65H
Timer data register 02 TDR02 R/W
− − √
0000H
FFF66H
TDR03L
− √
00H
FFF67H
Timer data register 03
TDR03H
TDR03 R/W
− √
√
00H
FFF68H
FFF69H
Timer data register 04 TDR04 R/W
− − √
0000H
FFF6AH
FFF6BH
Timer data register 05 TDR05 R/W
− − √
0000H
FFF6CH
FFF6DH
Timer data register 06 TDR06 R/W
− − √
0000H
FFF6EH
FFF6FH
Timer data register 07 TDR07 R/W
− − √
0000H