Datasheet

Section 15 Serial Communication Interface (SCI, IrDA)
Rev.7.00 Mar. 18, 2009 page 691 of 1136
REJ09B0109-0700
RxD
TxD
SCK
Clock
External clock
φ
φ/4
φ/16
φ/64
TEI
TXI
RXI
ERI
SCMR
SSR
SCR
SMR
SEMR
Transmission/
reception control
Baud rate
generator
BRR
Module data bus
RDR
TSRRSR
Parity generation
Parity check
TDR
Bus interface
Internal
data bus
Average transfer
rate generator
(SCI_2)
10.667-MHz operation
• 115.152 kbps
• 460.606 kbps
16-MHz operation
• 115.196 kbps
• 460.784 kbps
• 720 kbps
32-MHz operation
• 720 kbps
Legend:
RSR : Receive shift register
RDR : Receive data register
TSR : Transmit shift register
TDR : Transmit data register
SMR : Serial mode register
SCR : Serial control register
SSR : Serial status register
SCMR : Smart card mode register
BRR : Bit rate register
SEMR : Serial extension mode register (only in SCI_2)
Figure 15.1 Block Diagram of SCI