Hitachi H8S/2633 Hardware Manual page 603

Block Diagram

Figure 16-1 shows a block diagram of the SCI.

: Receive shift register

: Receive data register

: Transmit shift register

: Transmit data register

: Serial mode register

: Serial control register

: Serial status register

: Smart card mode register

: Bit rate register

Module data bus

Transmission/

reception control

Parity generation

Parity check

Figure 16-1 Block Diagram of SCI

External clock