Renesas R5S72621 User Manual
Section 21 IEBus
TM
Controller
R01UH0134EJ0400 Rev. 4.00
Page 1137 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
21.4.2
Reception Format
Figure 21.7 shows the relationship between the transfer format and each register during the IEBus
data reception.
data reception.
Note: * Received slave address is compared with IEAR1 and IEAR2. If they match,
the subsequent operations are performed.
the subsequent operations are performed.
IERBFL
IERCTL
[In slave reception]
[In master reception]
Communications frame
Communications frame
Register
Register
IERB001 to IERB128
Message length bits
Data bits
Slave address
Master address
Control bits
Message length bits
Data bits
Slave address
Master address
Control bits
IEAR1, IEAR2
IEMA1, IEMA2
IERBFL
IEMCR
IERB001 to IERB128
IESA1, IESA2
IEAR1, IEAR2
(*)
Figure 21.7 Relationship between Transfer Format and Each Register during IEBus Data
Reception