Hitachi H8S/2646 Hardware Manual page 1072

Hitachi 16-bit single-chip microcomputer h8s/2646 series
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SSR0—Serial Status Register 0
Bit
7
TDRE
Initial value
1
Read/Write
R/(W)*
Operate in the same way as for
the normal SCI.
Note: * Only 0 can be written, to clear the flag.
RDR0—Receive Data Register 0
Bit
7
Initial value
0
Read/Write
R
1040
6
5
RDRF
ORER
0
0
R/(W)*
R/(W)*
Error Signal Status
0 Normal reception, with no error signal
[Clearing condition]
• Upon reset, and in standby mode or module stop mode
• When 0 is written to ERS after reading ERS = 1
1 Error signal sent from receiver indicating detection of parity error
[Setting condition]
When the low level of the error signal is sampled
Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag,
which retains its previous state.
6
5
0
0
R
R
Store serial receive data
H'FF7C
SCI0, Smart Card Interface 0
4
3
ERS
PER
TEND
0
0
R/(W)*
R/(W)*
H'FF7D
SCI0, Smart Card Interface 0
4
3
0
0
R
R
2
1
MPB
MPBT
1
0
R
R
R/W
Operate in the same way as for
the normal SCI.
2
1
0
0
R
R
0
0
0
0
R

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