Scratch Pad Register (Fscr) - Renesas H8S/2100 Series Hardware Manual

Bit Bit Name
1 DDSR
0 DCTS

17.3.13 Scratch Pad Register (FSCR)

FSCR is not used for SCIF control, but is used to temporarily store program data.
Bit Bit Name
7 to 0 Bit 7 to bit 0
Section 17 Serial Communication Interface with FIFO (SCIF)
Initial Value R/W
0 R
0 R
Initial Value R/W
All 0 R/W
Description
Delta Data Set Ready Indicator
Indicates a change in the DSR input signal after the
DDSR bit is read.
0: No change in the DSR input signal after FMSR
read
[Clearing condition]
FMSR read
1: A change in the DSR input signal after FMSR
read
[Setting condition]
A change in the DSR input signal
Delta Clear to Send Indicator
Indicates a change in the CTS input signal after the
DCTS bit is read.
0: No change in the CTS input signal after FMSR
read
[Clearing condition]
FMSR read
1: A change in the CTS input signal after FMSR
read
[Setting condition]
A change in the CTS input signal
Description
Temporarily stores program data.
Rev. 1.00 Apr. 28, 2008 Page 511 of 994
REJ09B0452-0100