hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 369

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

2. Block Diagram
Figure 10.1 shows a block diagram of SCI1.
SCK
SI
SO
Legend:
SCR1:
SCSR1: Serial control status register 1
SDRU:
SDRL:
IRRS1:
PSS:
W
/4
1
1
1
Serial control register 1
Serial data register U
Serial data register L
Serial 1 interrupt request flag
Prescaler S
PSS
Transmit/receive
Figure 10.1 SCI1 Block Diagram
control circuit
Section 10 Serial Communication Interface
Rev. 6.00 Aug 04, 2006 page 333 of 680
Transfer bit counter
SCSR1
SDRU
SCR1
SDRL
REJ09B0145-0600
IRRS1