Renesas Hitachi H8S/2191, Hardware Manual

Page: 526 / 1065

Rev. 2.0, 11/00, page 499 of 1037
Section 24 Serial Communication Interface 2 (SCI2)
24.1 Overview
The serial communication interface 2 (SCI2) that has a 32-byte data buffer carries out clocked
synchronous serial transmission of 32 bytes by a single operation.
24.1.1 Features
SCI2 features are listed below.
•
32 bytes data transfer can be automatically carried out
•
Choice of 7 internal clocks (
φ
/256,
φ
/64,
φ
/32,
φ
/16,
φ
/8,
φ
/4, and
φ
/2) and an external clock
as serial clock source
•
Interrupt occurs when transmission has been completed or an error has occurred
•
Data transfer at intervals of 1 byte can be set
Data transfer can be carried out at intervals of 1 byte. The interval can be selected from a
multiple of internal clock cycle by 56, 24, or 8 times
•
Start of data transfer can be controlled by input of chip select
•
Strobe pulse is output for each 1-byte transfer