HD6413007F20 Datasheet, PDF (457/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

13.1.2 Block Diagram
Figure 13.1 shows a block diagram of the SCI.
13. Serial Communication Interface
RxD
TxD
SCK
RDR
RSR
Module data bus
TDR
SSR
BRR
SCR
TSR
SMR
SCMR
Transmit/receive
control
Baud rate
generator
Parity generate
Parity check
Clock
External clock
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
BRR: Bit rate register
SCMR: Smart card mode register
Figure 13.1 SCI Block Diagram
φ
φ/ 4
φ/16
φ/64
TEI
TXI
RXI
ERI
Internal
data bus
Rev.5.00 Sep. 12, 2007 Page 427 of 764
REJ09B0396-0500