MIL-STD-1553 Rev A/B

The KMXF_MIL1553_MILSTD1553_REV attribute holds the channel standard revision A/B selection.
For Hybrid mode, see mxfMIL1553RtsHybridRevSet() to set the revision of each RT.

Constant	Value
VMXF_MIL1553_MILSTD1553_REVB	MIL-1553 Revision B (default)
VMXF_MIL1553_MILSTD1553_REVA	MIL-1553 Revision A
VMXF_MIL1553_MILSTD1553_REVHYBRID	Hybrid Revision (FX1553 only)

Electrical Interface

The KMXF_MIL1553_INTERFACE attribute holds the channel transmitter/receiver electrical interface selection.

The RS-485 transceivers are shared with ASYNC channels.
Changing this attribute will automatically set the speed to 1Mbps for MIL-STD-1553 or 10Mbps for RS485 (EBR).
This attribute is available with FX1553-4, FM1553-4 and FMX-M1553-4 devices only.

Constant	Value
VMXF_MIL1553_INTERFACE_MILSTD1553	MIL-1553 interface (default)
VMXF_MIL1553_INTERFACE_RS485	RS485 (EBR) interface

Transmitter Line Voltage

The KMXF_MIL1553_TX_VOLTAGE attribute holds the channel transmitter output swing voltage (percentage of the output signal).

Range	Value
Minimum	0 [0%]
Maximum	65535 [100%] (default)

Transmitter Enable

The KMXF_MIL1553_TRANSMITTER_ENABLE attribute holds the channel A/B transmitters enable state. When a transmitter is disabled, nothing from its corresponding bus is transmitted.

Constant	Value
VMXF_MIL1553_TRANSMITTER_NONE	Bus A and B transmitters disable
VMXF_MIL1553_TRANSMITTER_A	Bus A transmitter enable
VMXF_MIL1553_TRANSMITTER_B	Bus B transmitter enable
VMXF_MIL1553_TRANSMITTER_BOTH	Bus A and B transmitters enable (default)

Receiver Enable

The KMXF_MIL1553_RECEIVER_ENABLE attribute holds the channel A/B receivers enable state. When a receiver is disabled, nothing from its corresponding bus is received.

Constant	Value
VMXF_MIL1553_RECEIVER_NONE	Bus A and B receivers disable
VMXF_MIL1553_RECEIVER_A	Bus A receiver enable
VMXF_MIL1553_RECEIVER_B	Bus B receiver enable
VMXF_MIL1553_RECEIVER_BOTH	Bus A and B receivers enable (default)

Loopback Mode

The KMXF_MIL1553_TX_RX_TEST_LB attribute holds the channel internal loopback enable state. When the loopback mode is enabled, the received data will come from the corresponding transceiver channel instead of the normal behavior where the received data comes from the transceiver line interface. This feature is intended for a demo application or for test purposes. Transmissions are still sent on the bus when loopback mode is enabled.

Constant	Value
VMXF_DISABLE	Disable loopback (default)
VMXF_ENABLE	Enable loopback

Bus Function

The KMXF_MIL1553_BUS_FUNCTION attribute holds the single function channel bus function mode. This attribute controls which bus function between BC, BM or RT is active.

The following modes are available:

Constant	Value
VMXF_MIL1553_BUS_FUNCTION_BM	Bus Monitor (default)
VMXF_MIL1553_BUS_FUNCTION_BC	Bus Controller
VMXF_MIL1553_BUS_FUNCTION_RT	Remote Terminal

EBR Termination

The KMXF_MIL1553_EBR_TERMINATION attribute holds the actual RS-485 EBR channel termination resistor state.
Only supported on MXF_MODULE_FLEX1553.

The following modes are available:

Constant	Value
VMXF_MIL1553_EBR_TERMINATION_NONE	No termination resistor (default)
VMXF_MIL1553_EBR_TERMINATION_120OHM	120 ohm termination resistor enabled