Renesas R5S72623 User Manual
Section 21 IEBus
TM
Controller
Page 1110 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
21.3.5
IEBus Master Unit Address Register 2 (IEAR2)
IEAR2 sets the upper eight bits of the master unit address. In master communications, this register
becomes the master address field value. In slave communications, this register is compared with
the received slave address field.
becomes the master address field value. In slave communications, this register is compared with
the received slave address field.
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
IARU8
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
7 to 0
IARU8
All 0
R/W
Upper 8 Bits of IEBus Master Unit Address
Set the upper 8 bits of the master unit address. This
register becomes the master address field value. In
slave communications, the master unit address is
compared with the received slave address field.
register becomes the master address field value. In
slave communications, the master unit address is
compared with the received slave address field.
21.3.6
IEBus Slave Address Setting Register 1 (IESA1)
IESA1 sets the lower four bits of the communications destination slave unit address.
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R
R
R
R
Bit:
Initial value:
R/W:
ISAL4
-
-
-
-
Bit Bit
Name
Initial
Value
Value
R/W Description
7 to 4
ISAL4
0000
R/W
Lower 4 Bits of IEBus Slave Address
These bits set the lower 4 bits of the communication
destination slave unit address.
destination slave unit address.
3 to 0
All
0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
always be 0.