Hitachi H8S/2199 Hardware Manual page 407

Single-chip microcomputer
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• Full-duplex communication capability
 The transmitter and receiver are mutually independent, enabling transmission and reception
to be executed simultaneously
 Double-buffering is used in both the transmitter and the receiver, enabling continuous
transmission and continuous reception of serial data
• Built-in baud rate generator allows any bit rate to be selected
• Choice of serial clock source: internal clock from baud rate generator or external clock from
SCK1 pin
• Four interrupt sources
 Four interrupt sources (transmit-data-empty, transmit-end, receive-data-full, and receive
error) that can issue requests independently
Rev. 1.0, 02/00, page 398 of 1141

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