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Section 12 Serial Communication Interface (SCI)
Rev. 3.00 Mar. 14, 2006 Page 378 of 804
REJ09B0104-0300
Clocked Synchronous Mode:
•
Data length: 8 bits
•
Receive error detection: Overrun errors
Smart Card Interface:
•
An error signal can be automatically transmitted on detection of a parity error during reception
•
Data can be automatically re-transmitted on receiving an error signal during transmission
•
Both direct convention and inverse convention are supported
RxD
TxD
SCK
Clock
P
φ
P
φ
/4
P
φ
/16
P
φ
/64
TEI
TXI
RXI
ERI
SCMR
SSR
SCR
SMR
Transmission/
reception control
Baud rate
generator
BRR
Module data bus
RDR
TSR
RSR
Parity generation
Parity check
[Legend]
RSR:
Receive shift register
RDR:
Receive data register
TSR:
Transmit shift register
TDR: Transmit
data
register
SMR:
Serial mode register
TDR
Bus interface
Internal data bus
External clock
SCR:
Serial control register
SSR:
Serial status register
SCMR: Smart card mode register
BRR:
Bit rate register
Figure 12.1 Block Diagram of SCI
electronic components distributor