h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 443

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

15.1.2
Figure 15.1 shows a block diagram of the SCI.
SCK
RxD
Legend:
RSR:
RDR:
TSR:
TDR:
SMR:
SCR:
SSR:
SCMR: Serial interface mode register
BRR:
TxD
Block Diagram
Receive shift register
Receive data register
Transmit shift register
Transmit data register
Serial mode register
Serial control register
Serial status register
Bit rate register
RDR
RSR
Parity generation
Parity check
Figure 15.1 Block Diagram of SCI
TDR
TSR
Module data bus
reception control
Section 15 Serial Communication Interface (SCI, IrDA)
Transmission/
SCMR
SMR
SSR
SCR
External clock
Clock
Rev. 4.00 Jun 06, 2006 page 389 of 1004
Baud rate
generator
BRR
TEI
TXI
RXI
ERI
/4
/16
/64
REJ09B0301-0400
data bus
Internal