R32C121 datasheet(37/113 Pages) RENESAS

37 / 113 page

REJ03B0237-0050 Rev.0.50 Jul 31, 2008

Page 37 of 111

Under development

Preliminary Specification

This is a preliminary specification and is subject to change.

R32C/121 Group

4. Special Function Registers (SFR)

Table 4.19

SFR List (19)

Address

Symbol

Reset Value

040030h to

04003Fh

040040h

040041h

040042h

040043h

040044h Processor Mode Register 0

PM0

1000 0000b

040045h

040046h System Clock Control Register 0

CM0

0000 1000b

040047h System Clock Control Register 1

CM1

0010 0000b

040048h Processor Mode Register 3

PM3

00h

040049h

04004Ah Protect Register

PRCR

XXXX X000b

04004Bh

04004Ch Protect Register 3

PRCR3

0000 0000b

04004Dh Oscillator Stop Detection Register

CM2

00h

04004Eh

04004Fh

040050h

040051h

040052h

040053h Processor Mode Register 2

PM2

00h

040054h

040055h

040056h

040057h

040058h

040059h

04005Ah Low Speed Mode Clock Control Register

CM3

XXXX XX00b

04005Bh

04005Ch

04005Dh

04005Eh

04005Fh

040060h Voltage Regulator Control Register

VRCR

0000 0000b

040061h

040062h Low Voltage Detector Control Register

LVDC

0000 XX00b

040063h

040064h Detection Voltage Configuration Register

DVCR

0000 XXXXb

040065h

040066h

040067h

040068h to

04008Fh

X: Undefined

Blanks are reserved. No access is allowed.

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