21. Serial Communication Interface with FIFO (SCIF)
Rev.1.00 Jan. 10, 2008 Page 1055 of 1658
REJ09B0261-0100
21.3.7 Serial Status Register n (SCFSR)
SCFSR is a 16-bit register that consists of status flags that indicate the operating status of the
SCIF.
SCFSR can be always read from or written to by the CPU. However, 1 cannot be written to the
ER, TEND, TDFE, BRK, RDF, and DR flags. Also note that in order to clear these flags they
must be read as 1 beforehand. The FER flag and PER flag are read-only flags and cannot be
modified.
01234567891011121315 14
0000011000000000
DRRDFPERFERBRKTDFETENDER⎯⎯
R/W*R/W*RRR/W*R/W*R/W*R/W*RRRRRRRR
BIt:
Initial value:
R/W:
Note: * Only 0 can be written to clear the flag.
Bit Bit Name
Initial
Value R/W Description
15 to 8 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.