Section 10 Serial Communication Interface; Overview; Sci1 - Renesas H8 Series Hardware Manual

Section 10 Serial Communication Interface

10.1

Overview

The H8/3644 Group is provided with a two-channel serial communication interface (SCI). Table
10.1 summarizes the functions and features of the two SCI channels.
Table 10.1 Serial Communication Interface Functions
Channel Functions

SCI1

Synchronous serial transfer
•
Choice of 8-bit or 16-bit data length
•
Continuous clock output
SCI3 Synchronous serial transfer
•
8-bit data length
•
Send, receive, or simultaneous
send/receive
Asynchronous serial transfer
•
Multiprocessor communication
•
Choice of 7-bit or 8-bit data length
•
Choice of 1 or 2 stop bits
•
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. SSB (Synchronized Serial Bus) communication is also provided, enabling multiple ICs to be
controlled.
Section 10 Serial Communication Interface
Features
• Choice of 8 internal clocks (φ/1024 to φ/2)
or external clock
•
Open drain output possible
•
Interrupt requested at completion of
transfer
•
On-chip baud rate generator
•
Receive error detection
•
Break detection
•
Interrupt requested at completion of
transfer or error
Rev. 6.00 Sep 12, 2006 page 277 of 526
REJ09B0326-0600