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SH7261 Datasheet(PDF) 925 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) 925 Page - Renesas Technology Corp

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Section 20 IEBus
TM Controller (IEB) [R5S72612] [R5S72613]
Rev. 2.00 Sep. 07, 2007 Page 893 of 1312
REJ09B0320-0200
Table 20.6
Functions of Each Block
Block
Function
Internal bus interface
Internal bus interface
• Data width: 8 bits
• IEB register access
Interface conforms to IEBus specifications
IEBus interface
• Outputs data from transmit controller to IEBus in IEBus
specification bit format
• Picks out frame data in IEBus specification bit format to transfer
to receive controller
IEB control register
Register
• Register to control IEB
• Readable/writable from internal bus
Transmits data in transmit buffer to IEBus
Transmit controller
• Generates transmit frame combining header information in
register and data in transmit buffer to transmits
• Detects transmit error
Stores data from IEBus in receive buffer
Receive controller
• Stores header information and data in received frame in register
and receive buffer, respectively
• Detects receive error
Buffer for data transmission
Transmit data buffer
• Buffer that stores data to be transmitted to IEBus
• Buffer size: 128 bytes
Buffer for data reception
Receive data buffer
• Buffer that stores data received from IEBus
• Buffer size: 128 bytes



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