M32C87 datasheet(49/627 Pages) RENESAS

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M32C/87 Group (M32C/87, M32C/87A, M32C/87B)

4. Special Function Registers (SFRs)

REJ09B0180-0151 Rev.1.51 Jul 31, 2008

Page 27 of 587

Special Function Registers (SFRs)

Special Function Registers (SFRs) are the control registers of peripheral functions. Tables 4.1 to 4.20 list SFR address

maps.

Table 4.1

SFR Address Map (1/20)

X: Undefined

Blank spaces are all reserved. No access is allowed.

NOTE:

1. Bits PM01 and PM00 in the PM0 register maintain values set before reset, even after software reset or watchdog timer reset has been

performed.

Address

Symbol

After Reset

0000h

0001h

0002h

0003h

0004h

Processor Mode Register 0(1)

PM0

1000 0000b(CNVSS=”L”)

0000 0011b(CNVSS=”H”)

0005h

Processor Mode Register 1

PM1

00h

0006h

System Clock Control Register 0

CM0

0000 1000b

0007h

System Clock Control Register 1

CM1

0010 0000b

0008h

0009h

Address Match Interrupt Enable Register

AIER

00h

000Ah

Protect Register

PRCR

XXXX 0000b

000Bh

External Data Bus Width Control Register

XXXX 1000b(BYTE=”L”)

XXXX 0000b(BYTE=”H”)

000Ch

Main Clock Division Register

MCD

XXX0 1000b

000Dh

Oscillation Stop Detection Register

CM2

00h

000Eh

Watchdog Timer Start Register

WDTS

XXh

000Fh

Watchdog Timer Control Register

WDC

00XX XXXXb

0010h

Address Match Interrupt Register 0

RMAD0

000000h

0011h

0012h

0013h

Processor Mode Register 2

PM2

00h

0014h

Address Match Interrupt Register 1

RMAD1

000000h

0015h

0016h

0017h

Voltage Detection Register 2

VCR2

00h

0018h

Address Match Interrupt Register 2

RMAD2

000000h

0019h

001Ah

001Bh

Voltage Detection Register 1

VCR1

0000 1000b

001Ch

Address Match Interrupt Register 3

RMAD3

000000h

001Dh

001Eh

001Fh

0020h

0021h

0022h

0023h

0024h

0025h

0026h

PLL Control Register 0

PLC0

0001 X010b

0027h

PLL Control Register 1

PLC1

000X 0000b

0028h

Address Match Interrupt Register 4

RMAD4

000000h

0029h

002Ah

002Bh

002Ch

Address Match Interrupt Register 5

RMAD5

000000h

002Dh

002Eh

002Fh

Vdet4 Detection Interrupt Register

D4INT

XX00 0000b

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