Datasheet

Section 18 I
2
C Bus Interface [Option]
(This function is not available in the H8S/2695)
R01UH0166EJ0600 Rev. 6.00 Page 841 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
18.1.4 Register Configuration
Table 18.2 summarizes the registers of the I
2
C bus interface.
Table 18.2 Register Configuration
Channel Name Abbreviation R/W Initial Value Address
*
1
0 I
2
C bus control register ICCR0 R/W H'01 H'FF78
*
3
I
2
C bus status register ICSR0 R/W H'00 H'FF79
*
3
I
2
C bus data register ICDR0 R/W — H'FF7E
*
2
*
3
I
2
C bus mode register ICMR0 R/W H'00 H'FF7F
*
2
*
3
Slave address register SAR0 R/W H'00 H'FF7F
*
2
*
3
Second slave address
register
SARX0 R/W H'01 H'FF7E
*
2
*
3
1 I
2
C bus control register ICCR1 R/W H'01 H'FF80
*
3
I
2
C bus status register ICSR1 R/W H'00 H'FF81
*
3
I
2
C bus data register ICDR1 R/W — H'FF86
*
2
*
3
I
2
C bus mode register ICMR1 R/W H'00 H'FF87
*
2
*
3
Slave address register SAR1 R/W H'00 H'FF87
*
2
*
3
Second slave address
register
SARX1 R/W H'01 H'FF86
*
2
*
3
Common Serial control register X SCRX R/W H'00 H'FDB4
DDC switch register DDCSWR R/W H'0F H'FDB5
Module stop control
register B
MSTPCRB R/W H'FF H'FDE9
Notes: 1. Lower 16 bits of the address.
2. The register that can be written or read depends on the ICE bit in the I
2
C bus control
register. The slave address register can be accessed when ICE = 0, and the I
2
C bus
mode register can be accessed when ICE = 1.
3. The I
2
C bus interface registers are assigned to the same addresses as other registers.
Register selection is performed by means of the IICE bit in the serial control register X
(SCRX).