R8C/2G Group

4. Special Function Registers (SFRs)

Rev.1.00

Apr 04, 2008

Page 13 of 41

REJ03B0223-0100

Table 4.2

SFR Information (2)(1)

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.

Address

Register

Symbol

After reset

0030h

0031h

Voltage Detection Register 1(2)

VCA1

00001000b

0032h

Voltage Detection Register 2(2)

VCA2

00h(3)

00100000b(4)

0033h

0034h

0035h

0036h

Voltage Monitor 1 Circuit Control Register(5)

VW1C

00001010b

0037h

Voltage Monitor 2 Circuit Control Register(5)

VW2C

00000010b

0038h

Voltage Monitor 0 Circuit Control Register(2)

VW0C

1000X010b(3)

1100X011b(4)

0039h

003Ah

003Bh

Voltage Detection Circuit External Input Control Register

VCAB

00h

003Ch

Comparator Mode Register

ALCMR

00h

003Dh

Voltage Monitor Circuit Edge Select Register

VCAC

00h

003Eh

BGR Control Register

BGRCR

00h

003Fh

BGR Trimming Register

BGRTRM

When Shipping

0040h

0041h

Comparator 1 Interrupt Control Register

VCMP1IC

XXXXX000b

0042h

Comparator 2 Interrupt Control Register

VCMP2IC

XXXXX000b

0043h

0044h

0045h

0046h

0047h

0048h

0049h

004Ah

Timer RE Interrupt Control Register

TREIC

XXXXX000b

004Bh

UART2 Transmit Interrupt Control Register

S2TIC

XXXXX000b

004Ch

UART2 Receive Interrupt Control Register

S2RIC

XXXXX000b

004Dh

Key Input Interrupt Control Register

KUPIC

XXXXX000b

004Eh

004Fh

0050h

Compare 1 Interrupt Control Register

CMP1IC

XXXXX000b

0051h

UART0 Transmit Interrupt Control Register

S0TIC

XXXXX000b

0052h

UART0 Receive Interrupt Control Register

S0RIC

XXXXX000b

0053h

0054h

0055h

INT2 Interrupt Control Register

INT2IC

XX00X000b

0056h

Timer RA Interrupt Control Register

TRAIC

XXXXX000b

0057h

0058h

Timer RB Interrupt Control Register

TRBIC

XXXXX000b

0059h

INT1 Interrupt Control Register

INT1IC

XX00X000b

005Ah

005Bh

Timer RF Interrupt Control Register

TRFIC

XXXXX000b

005Ch

Compare 0 Interrupt Control Register

CMP0IC

XXXXX000b

005Dh

INT0 Interrupt Control Register

INT0IC

XX00X000b

005Eh

INT4 Interrupt Control Register

INT4IC

XX00X000b

005Fh

Capture Interrupt Control Register

CAPIC

XXXXX000b

0060h

0061h

0062h

0063h

0064h

0065h

0066h

0067h

0068h

0069h

006Ah

006Bh

006Ch

006Dh

006Eh

006Fh