HD6432633 Datasheet, PDF (746/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

 One serial data transfer format
Data length
: 8 bits
 Receive error detection : Overrun errors detected
• Full-duplex communication capability
 The transmitter and receiver are mutually independent, enabling transmission and reception
to be executed simultaneously
 Double-buffering is used in both the transmitter and the receiver, enabling continuous
transmission and continuous reception of serial data
• Choice of LSB-first or MSB-first transfer
 Can be selected regardless of the communication mode* (except in the case of
asynchronous mode 7-bit data)
Note: * Descriptions in this section refer to LSB-first transfer.
• On-chip baud rate generator allows any bit rate to be selected
• Choice of serial clock source: internal clock from baud rate generator or external clock from
SCK pin
• Four interrupt sources
 Four interrupt sources — transmit-data-empty, transmit-end, receive-data-full, and receive
error — that can issue requests independently
 The transmit-data-empty interrupt and receive data full interrupts can activate the DMA
controller (DMAC) or data transfer controller (DTC) to execute data transfer
• Module stop mode can be set
 As the initial setting, SCI operation is halted. Register access is enabled by exiting module
stop mode
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