HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 438

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

13. Serial Communication Interface (SCI)
Clocked synchronous mode
• Data length: 8 bits
• Receive error detection: Overrun errors detected
Smart card interface
• Data is automatically retransmitted if an error signal is received while data is being transmitted
• Direct convention and inverse convention both supported
Note: * The description in this section is based on LSB-first transfer.
Figure 13.1 shows a block diagram of the SCI.
Rev.4.00 Mar. 27, 2008 Page 394 of 882
REJ09B0108-0400
RxD
TxD
SCK
[Legend]
RSR:
RDR:
TSR:
TDR:
SMR:
SCR:
SSR:
BRR:
SDCR: Serial direction control register
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
Figure 13.1 Block Diagram of SCI
Parity generation
Parity check
TDR
TSR
Module data bus
Transmission/
reception
control
SDCR
SMR
SCR
SSR
External clock
Clock
Baud rate
generator
BRR
TEI
TXI
RXI
ERI
Pφ
Pφ/8
Pφ/32
Pφ/128
Internal
data bus