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SH7261 Datasheet, PDF (925/1348 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series | |||
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Section 20 IEBusTM Controller (IEB) [R5S72612] [R5S72613]
Table 20.6 Functions of Each Block
Block
Internal bus interface
IEBus interface
Register
Transmit controller
Receive controller
Transmit data buffer
Receive data buffer
Function
Internal bus interface
⢠Data width: 8 bits
⢠IEB register access
Interface conforms to IEBus specifications
⢠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 to control IEB
⢠Readable/writable from internal bus
Transmits data in transmit buffer to IEBus
⢠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
⢠Stores header information and data in received frame in register
and receive buffer, respectively
⢠Detects receive error
Buffer for data transmission
⢠Buffer that stores data to be transmitted to IEBus
⢠Buffer size: 128 bytes
Buffer for data reception
⢠Buffer that stores data received from IEBus
⢠Buffer size: 128 bytes
Rev. 2.00 Sep. 07, 2007 Page 893 of 1312
REJ09B0320-0200
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