Line Status Register (Flsr) - Renesas H8S/2100 Series Hardware Manual

Section 16 Serial Communication Interface with FIFO (SCIF)

16.3.11 Line Status Register (FLSR)

FLSR is a read-only register that indicates the status information of data transmission.
Bit Bit Name
7 RXFIFOERR 0
6 TEMT
Rev. 1.00 May 09, 2008 Page 468 of 954
REJ09B0462-0100
Initial Value R/W
R
1 R
Description
Receive FIFO Error
Indicates that at least one data error (parity error,
framing error, or break interrupt) has occurred when
the FIFO is enabled.
0: No receive FIFO error
[Clearing condition]
When FRBR is read or FLSR is read while there is
no remaining data that could cause an error after an
FIFO clear.
1: A receive FIFO error
[Setting condition]
When at least one data error (parity error, framing
error, or break interrupt) has occurred in the FIFO.
Transmitter Empty
Indicates whether transmit data remains.
•
When the FIFO is disabled
0: Transmit data remains in FTHR or FTSR.
[Clearing condition]
Transmit data is written to FTHR.
1: No transmit data remains in FTHR and FTSR.
[Setting condition]
When no transmit data remains in FTHR and FTSR.
•
When the FIFO is enabled
0: Transmit data remains in the transmit FIFO or
FTSR.
[Clearing condition]
Transmit data is written to FTHR.
1: No transmit data remains in the transmit FIFO and
FTSR.
[Setting condition]
When no transmit data remains in the transmit FIFO
and FTSR.