r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 887
r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
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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
2
1, 0
Bit
7 to 4
3
Bit Name
IrRxINV
Bit Name
ABCS
Initial Value
0
All 0
Initial Value
Undefined
0
R/W
R/W
R/W
R/W
Description
IrRx Data Invert
Specifies the logic level of the IrRxD output to be
inverted. When inversion is performed, the high
pulse width specified by bits 6 to 4 becomes the
low pulse width.
0: Transmit data is used as IrRxD output without
1: Transmit data is inverted before used as IrRxD
Reserved
These bits are always read as 0 and cannot be
modified.
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
Section 15 Serial Communication Interface (SCI, IrDA)
change
output
16 times the transfer rate.
times the transfer rate.
Rev. 1.00 Sep. 19, 2008 Page 857 of 1342
REJ09B0467-0100
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