X20 system modules • X20 electronics module communication • X20CS1070
1626
X20 system User's Manual 3.10
4.18.7.7.7.5 Configuration of error messages
Name:
CfO_ErrorID0007
This register must be used first to configure the error messages that have to be transferred. If the corresponding
enable bit is not set, no error status will be sent to the higher-level system when the error occurs.
Data type
Value
USINT
See bit structure.
Bit structure:
Bit
Description
Value
Information
0
Disabled
0
CANwarning
1
Enabled
0
Disabled
1
CANpassive
1
Enabled
0
Disabled
2
CANbussoff
1
Enabled
0
Disabled
3
CANRXoverrun
1
Enabled
4 - 7
Reserved
-
4.18.7.7.7.6 Size of the transmit buffer
Name:
Cfo_FIFOTXlimit
"TX FIFO size" in the AS I/O configuration.
Determines the size of the transmit buffer for the respective interface.
Data type
Value
Meaning
USINT
0 to 18
Size of the transmit buffer (default = 1)
4.18.7.7.7.7 Display of unprocessed elements remaining in transmit/receive buffer
Name:
Cfo_TXRXinfoFlags
This register can be used to specify that the number of unprocessed elements in the transmit and receive buffers
is indicated in the upper 4 bits of the "TxCountReadback" and "RxCount" registers for the interface.
Data type
Value
USINT
See bit structure.
Bit structure:
Bit
Description
Value
Information
0
The "TXCountReadBack" on page 1628 and "TXCount-
LatchReadBack" on page 1628 registers are used to read back
"TXCount".
0
TxFifoInfo
"Mode of channel TXCountReadBack" in the AS I/O configura-
tion
1
The lower 4 bits of the "TXCountReadBack" on page 1628 and
"TXCountLatchReadBack" on page 1628 registers are used to
read back "TXCount".
The upper 4 bits are used to return the number of frames in the
transmit buffer that have not been transmitted.
0
The "RXCount" on page 1628 and "RXCountLatch" on page
1629 registers are used to indicate the number of telegrams that
have been received.
1
RxFifoInfo
"Mode of channel RXCount" in the AS I/O configuration
1
The lower 4 bits of the "RXCount" on page 1628 and "RXCount-
Latch" on page 1629 registers are used to indicate the number
of telegrams received.
The upper 4 bits are used to indicate the number of received but
not acknowledged telegrams in the receive buffer.
2 - 7
Reserved
-