Rev. 1.0, 02/00, page 462 of 1141
23.1.4
Register Configuration
Table 23.2 summarizes the registers of the I
2
C bus interface.
Table 23.2
Register Configuration
Channel
Name
Abbrev.
R/W
Initial Value
Address
*1
0
I
2
C bus control register
ICCR0
R/W
H'01
H'D0E8
I
2
C bus status register
ICSR0
R/W
H'00
H'D0E9
I
2
C bus data register
ICDR0
R/W
H'D0EE*
2
I
2
C bus mode register
ICMR0
R/W
H'00
H'D0EF*
2
Slave address register
SAR0
R/W
H'00
H'D0EF*
2
Second slave address register
SARX0
R/W
H'01
H'D0EE*
2
1
I
2
C bus control register
ICCR1
R/W
H'01
H'D158
I
2
C bus status register
ICSR1
R/W
H'00
H'D159
I
2
C bus data register
ICDR1
R/W
H'D15E*
2
I
2
C bus mode register
ICMR1
R/W
H'00
H'D15F*
2
Slave address register
SAR1
R/W
H'00
H'D15F*
2
Second slave address register
SARX1
R/W
H'01
H'D15E*
2
0 and 1
DDC switch register
DDCSWR
R/W
H'0F
H'D0E5
Module stop control register
MSTPCRH
MSTPCRL
R/W
H'FF
H'FF
H'FFEC
H'FFED
Notes: 1. Lower 16 bits of the address.
2. The registers that can be read from or written to depend on the ICE bit in the I
2
C bus
control register. The slave address registers can be accessed when ICE = 0, and the
I
2
C bus mode registers can be accessed when ICE = 1.