R8C-2K Datasheet, PDF(17/47 Page) Renesas Technology Corp

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R8C-2K Datasheet, PDF (17/47 Pages) Renesas Technology Corp – MCU

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R8C/2K Group, R8C/2L Group

4. Special Function Registers (SFRs)

An SFR (special function register) is a control register for a peripheral function. Tables 4.1 to 4.7 list the special

function registers.

Table 4.1 SFR Information (1)(1)

Address

0000h

0001h

0002h

0003h

0004h

0005h

0006h

0007h

0008h

0009h

000Ah

000Bh

000Ch

000Dh

000Eh

000Fh

0010h

0011h

0012h

0013h

0014h

0015h

0016h

0017h

0018h

0019h

001Ah

001Bh

001Ch

Processor Mode Register 0

Processor Mode Register 1

System Clock Control Register 0

System Clock Control Register 1

Protect Register

Oscillation Stop Detection Register

Watchdog Timer Reset Register

Watchdog Timer Start Register

Watchdog Timer Control Register

Address Match Interrupt Register 0

Address Match Interrupt Enable Register

Address Match Interrupt Register 1

Count Source Protection Mode Register

001Dh

001Eh

001Fh

0020h

0021h

0022h

0023h

0024h

0025h

0026h

0027h

0028h

0029h

002Ah

002Bh

002Ch

High-Speed On-Chip Oscillator Control Register 0

High-Speed On-Chip Oscillator Control Register 1

High-Speed On-Chip Oscillator Control Register 2

High-Speed On-Chip Oscillator Control Register 6

High-Speed On-Chip Oscillator Control Register 7

Symbol

After reset

PM0

PM1

CM0

CM1

PRCR

OCD

WDTR

WDTS

WDC

RMAD0

AIER

RMAD1

00h

01101000b

00100000b

00h

00000100b

XXh

00X11111b

00h

CSPR

00h

10000000b(6)

FRA0

FRA1

FRA2

FRA6

FRA7

00h

When shipping

00h

When Shipping

0030h

0031h

0032h

0033h

0034h

0035h

0036h

0037h

0038h

0039h

003Ah

Voltage Detection Register 1(2)

Voltage Detection Register 2(2)

Voltage Monitor 1 Circuit Control Register(5)

Voltage Monitor 2 Circuit Control Register(5)

Voltage Monitor 0 Circuit Control Register(2)

VCA1

VCA2

VW1C

VW2C

VW0C

00001000b

00h(3)

00100000b(4)

00001000b

00h

0000X000b(3)

0100X001b(4)

003Eh

003Fh

X: Undefined

NOTES:

1. The blank regions are reserved. Do not access locations in these regions.

2. Software reset, watchdog timer reset, voltage monitor 1 reset, or voltage monitor 2 reset do not affect this register.

3. The LVD0ON bit in the OFS register is set to 1 and hardware reset.

4. Power-on reset, voltage monitor 0 reset, or the LVD0ON bit in the OFS register is set to 0 and hardware reset.

5. Software reset, watchdog timer reset, voltage monitor 1 reset, or voltage monitor 2 reset do not affect b2 and b3.

6. The CSPROINI bit in the OFS register is set to 0.

Rev.1.10 Dec 21, 2007 Page 17 of 45

REJ03B0219-0110

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