Checking The Receive Error Information - Toshiba V Series User Manual

7.3 Checking the Receive Error Information

When a receive data error is detected, the error code is stored in the receive error
information (7W).
Receive error
information
［7W］
Receive error code description and status
Error
code
01H
02H
03H
Error signal description and status
bit
Ａ
Check for receive errors with a routine built into the receive program. When error
occurs, turn off receive start (RX_ST) once and re-execute the receive program
because the error data is discarded and receive is performed from the next data.
6F8C0843
F E D C B
No use
Bit Name Description
1:Parity error
A PE
0:No error
Type
Receive timeout Interval between received
data characters exceeded the
receive timeout interval.
Receive text Receive data exceeded 320
length error bytes.
(The trailing code isn't
detected.)
Receive buffer Receive buffer has overflow.
overflow
Type
Parity error Parity error has been
detected.
7.3 Checking the Receive Error Information
A 9 8 7 6 5
Receive error code
PE
No use
Error
code
00H Normal
01H Receive timeout
02H Receive text length error
(The trailing code isn't
detected.)
03H Receive buffer overflow
Description
CIF module discards the
receive data and is ready
to receive the next data.
If this occurs frequently,
check whether the data
configuration and trailing
code of the opposite end
is correct.
Description
The CIF module discards
the received data and is
ready to receive the next
data.
If this occurs frequently,
check whether the data
configuration of the data
opposite end is correct.
4 3 2 1 0
Description
(when ERR=1)
Status
Status
27
7