Rev. 2.00, 09/03, page 390 of 690
16.3.8
Serial Status Register (SCSSR)
SCSSR is a 16-bit readable/writable register that indicates the SCIF status.
However, 1 cannot be written to the ORER, TSF, ER, TDFE, BRK, RDF, and DR flags. Also note
that in order to clear these flags to 0, they must be read as 1 beforehand. The TEND, FER, and
PER flags are read-only flags and cannot be modified.
Bit
Bit
Name
Initial
Value
R/W
Description
15 to 10
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
9
ORER
0
R/(W)
*
Overrun Error
Indicates that an overrun error occurred during
reception.
This bit is only valid in asynchronous mode.
0: Reception in progress, or reception has ended
successfully
*
1
[Clearing conditions]
•
Power-on reset or manual reset
•
When 0 is written to ORER after reading ORER =
1
1: An overrun error occurred during reception
*
2
[Setting condition]
When serial reception is completed while receive
FIFO is full
Notes: 1. The ORER flag is not affected and retains
its previous state when the RE bit in
SCSCR is cleared to 0.
2. The receive data prior to the overrun error
is retained in SCFRDR, and the data
received subsequently is lost. Serial
reception cannot be continued while the
ORER flag is set to 1.
Содержание SH7705
Страница 2: ......
Страница 46: ...Rev 2 00 09 03 page xlvi of xlvi Appendix Table A 1 I O Port States in Each Processing State 679 ...
Страница 70: ...Rev 2 00 09 03 page 24 of 690 ...
Страница 194: ...Rev 2 00 09 03 page 148 of 690 ...
Страница 284: ...Rev 2 00 09 03 page 238 of 690 ...
Страница 338: ...Rev 2 00 09 03 page 292 of 690 ...
Страница 354: ...Rev 2 00 09 03 page 308 of 690 ...
Страница 374: ...Rev 2 00 09 03 page 328 of 690 ...
Страница 420: ...Rev 2 00 09 03 page 374 of 690 ...
Страница 476: ...Rev 2 00 09 03 page 430 of 690 ...
Страница 482: ...Rev 2 00 09 03 page 436 of 690 ...
Страница 552: ...Rev 2 00 09 03 page 506 of 690 ...
Страница 630: ...Rev 2 00 09 03 page 584 of 690 ...
Страница 739: ...SH7705 Group Hardware Manual REJ09B0082 0200O ...