HD6473837H Datasheet, PDF (242/562 Pages) Renesas Technology Corp – Hardware Manual

Section 10 Serial Communication Interface
10.1 Overview
The H8/3834 Series is provided with a three-channel serial communication interface (SCI). Table
10.1 summarizes the functions and features of the three SCI channels.
Table 10.1 Serial Communication Interface Functions
Channel
SCI1
SCI2
SCI3
Functions
Features
Synchronous serial transfer
• Choice of 8-bit or 16-bit data
length
• Continuous clock output
• Choice of 8 internal clocks (φ/1024 to φ/2)
or external clock
• Open drain output possible
• Interrupt requested at completion of
transfer
Synchronous serial transfer
• Automatic transfer of up to 32 bytes
of data (send, receive, or
simultaneous send/receive)
• Chip select input
• Strobe pulse output
• Choice of 7 internal clocks (φ/256 to φ/2) or
external clock
• Open drain output possible
• Interrupt requested at completion of
transfer or error
Synchronous serial transfer
• 8-bit data transfer
• Send, receive, or simultaneous
send/receive
Asynchronous serial transfer
• Built-in baud rate generator
• Receive error detection
• Break detection
• Interrupt requested at completion of
transfer or error
• Multiprocessor communication
function
• Choice of 7-bit or 8-bit data length
• Choice of 1-bit or 2-bit stop bit
length
• Parity addition
10.2 SCI1
10.2.1 Overview
Serial communication interface 1 (SCI1) performs synchronous serial transfer of 8-bit or 16-bit
data.
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