RX610 Group
22. I
2
C Bus Interface (RIIC)
R01UH0032EJ0120 Rev.1.20
Page 708 of 1006
Feb 20, 2013
22.2.7
I
2
C Bus Status Enable Register (ICSER)
SAR1E
Addresses: RIIC0.ICSER 0008 8306h, RIIC1.ICSER 0008 8326h
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
1
0
0
0
1
HOAE
—
DIDE
—
GCAE
SAR2E
SAR0E
Bit
Symbol
Bit Name
Description
R/W
b0
SAR0E
Slave Address Register 0 Enable
0: Slave address in SARL0 and SARU0 is disabled
1: Slave address in SARL0 and SARU0 is enabled
R/W
b1
SAR1E
Slave Address Register 1 Enable
0: Slave address in SARL1 and SARU1 is disabled
1: Slave address in SARL1 and SARU1 is enabled
R/W
b2
SAR2E
Slave Address Register 2 Enable
0: Slave address in SARL2 and SARU2 is disabled
1: Slave address in SARL2 and SARU2 is enabled
R/W
b3
GCAE
General Call Address Enable
0: General call address detection is disabled
1: General call address detection is enabled
R/W
b4
Reserved
This bit is always read as 0. The write value should
always be 0.
R/W
b5
DIDE
Device-ID Address Detection Enable
0: Device-ID address detection is disabled
1: Device-ID address detection is enabled
R/W
b6
Reserved
This bit is always read as 0. The write value should
always be 0.
R/W
b7
HOAE
Host Address Enable
0: Host address detection is disabled
1: Host address detection is enabled
R/W
ICSER enables or disables comparison of slave addresses, general call address detection, device-ID command detection,
and host address detection.
SARyE Bit (Slave Address Register y Enable) (y = 0 to 2)
This bit is used to enable or disable the received slave address and the slave address set in SARLy and SARUy.
When this bit is set to 1, the slave address set in SARLy and SARUy is enabled and is compared with the received slave
address.
When this bit is cleared to 0, the slave address set in SARLy and SARUy is disabled and is ignored even if it matches the
received slave address.