HD6473032F16 Datasheet, PDF (467/847 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.
Section 13 Serial Communication Interface
Module data bus
Internal
data bus
RxD
TxD
SCK
RDR
RSR
TDR
TSR
SSR
SCR
SMR
Transmit/
receive control
BRR
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
Figure 13.1 SCI Block Diagram
φ
φ/4
φ/16
φ/64
TEI
TXI
RXI
ERI
Rev. 3.00 Mar 21, 2006 page 437 of 814
REJ09B0302-0300