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SH7261 Datasheet(PDF) 960 Page - Renesas Technology Corp

Part # SH7261
Description  32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series
PDF  1348 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7261 Datasheet(HTML) 960 Page - Renesas Technology Corp

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Section 20 IEBus
TM Controller (IEB) [R5S72612] [R5S72613]
Rev. 2.00 Sep. 07, 2007 Page 928 of 1312
REJ09B0320-0200
20.4
Data Format
20.4.1
Transmission Format
Figure 20.6 shows the relationship between the transfer format and each register during the IEBus
data transmission.
IETBFL
IEMCR
[In master transmission]
[In slave transmission]
Communications frame
Communications frame
Register
Register
Notes:
1.
In slave transmission, the received master address is not saved. If the unit is locked,
address comparison performed.
2.
The received slave address is compared with IEAR1 and IEAR2, and if these addresses
match, operation continues.
3.
In slave transmission, the received control bits are not saved. The received control bits
are decoded to decide the subsequent operation.
IETB001 to IETB128
Message length bits
Data bits
Slave address
Master address
Control bits
Message length bits
Data bits
Slave address
Master address
Control bits
IESA1, IESA2
IEAR1, IEAR2
(*1)
(*3)
(*2)
IEAR1, IEAR2
IETBFL
IETB001 to IETB128
Figure 20.6 Relationship between Transfer Format
and Each Register during IEBus Data Transmission



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