HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 789

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

15.3.11 Serial Extension Mode Register (SEMR)
SEMR selects the clock source in asynchronous mode. The basic clock can be automatically set by
selecting the average transfer rate.
Bit
7
to
4
3
Bit Name
⎯
ABCS
Initial Value
Undefined
0
R/W
⎯
R/W
Section 15 Serial Communication Interface (SCI, IrDA)
Description
Reserved
If these bits are read, an undefined value will be
returned and cannot be modified.
Asynchronous basic clock selection (valid only in
asynchronous mode)
Selects the basic clock for 1-bit period in
asynchronous mode.
0: Operates on a basic clock with a frequency of
1: Operates on a basic clock with a frequency of 8
16 times the transfer rate.
times the transfer rate.
Rev.7.00 Mar. 18, 2009 page 721 of 1136
REJ09B0109-0700