The following ASYNC attributes are available only for the IO-MULTI device.

Electrical Selection

The KMXF_ASYNCEH_ELECTRICAL_SELECTION attribute holds the actual channel electrical selection. When the electrical selection is set to default, all electrical attributes below are set to a default value and are read only. To modify any of these attributes, set electrical selection to custom.

Constant	Value
VMXF_ASYNCEH_MULTI_ELECTRICAL_SELECT_DEFAULT	Select default electrical parameters (default)
VMXF_ASYNCEH_MULTI_ELECTRICAL_SELECT_CUSTOM	Select custom electrical parameters

TX Differential Voltage High

The KMXF_ASYNCEH_TX_DIFF_VOLTAGE_HIGH attribute defines the high TX differential voltage value. This is a floating point attribute. To modify this attribute value, the KMXF_ASYNCEH_ELECTRICAL_SELECTION attribute must be set to custom.

The supported range is:

Module	Range (Volt)
MXF_MODULE_MULTI_EH	see table below
MXF_MODULE_MULTI	-9.16 – +9.16

Default value: +2.50 volt

MXF_MODULE_MULTI_EH

Device Type	Revision	MXF Version	Range (Volt)
FlexMulti 629	Up to 2.4	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	2.5 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5
FlexMulti 1553	Up to 3.2	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	3.3 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5
FlexMulti 429 FlexMulti 664 FlexMulti	Up to 3.0	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	3.1 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5

TX Differential Voltage Low

The KMXF_ASYNCEH_TX_DIFF_VOLTAGE_LOW attribute defines the low TX differential voltage value. This is a floating point attribute. To modify this attribute value, the KMXF_ASYNCEH_ELECTRICAL_SELECTION attribute must be set to custom.

The supported range is:

Module	Range (Volt)
MXF_MODULE_MULTI_EH	see table below
MXF_MODULE_MULTI	-9.16 – +9.16

Default value: -2.50 volt

MXF_MODULE_MULTI_EH

Device Type	Revision	MXF Version	Range (Volt)
FlexMulti 629	Up to 2.4	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	2.5 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5
FlexMulti 1553	Up to 3.2	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	3.3 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5
FlexMulti 429 FlexMulti 664 FlexMulti	Up to 3.0	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	3.1 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5

TX Voltage Offset

The KMXF_ASYNCEH_TX_VOLTAGE_OFFSET attribute defines the TX voltage offset. This is a floating point attribute. To modify this attribute value, the KMXF_ASYNCEH_ELECTRICAL_SELECTION attribute must be set to custom.

The supported range is:

Module	Range (Volt)
MXF_MODULE_MULTI_EH	see table below
MXF_MODULE_MULTI	-10.0 – +10.0

Default value: 2.50 volt

MXF_MODULE_MULTI_EH

Device Type	Revision	MXF Version	Range (Volt)
FlexMulti 629	Up to 2.4	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	2.5 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5
FlexMulti 1553	Up to 3.2	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	3.3 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5
FlexMulti 429 FlexMulti 664 FlexMulti	Up to 3.0	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.1 – +6.1
	3.1 and later	Up to 4.2.5	-5.0 – +5.0
		4.3.0 to 4.4.1	-6.0 – +6.0
		4.4.2 and later	-6.5 – +6.5

TX Slew Rate Selection

The KMXF_ASYNCEH_TX_SLEW_RATE_SELECTION attribute defines the TX slew rate selection. MX Foundation automatically sets the default slew rate based to its minimum value. When the default option is selected, the KMXF_ASYNCEH_TX_SLEW_RATE attribute will be read only. Otherwise, the custom option allows specifying the slew rate with the KMXF_ASYNCEH_TX_SLEW_RATE attribute. To modify this attribute value, the KMXF_ASYNCEH_ELECTRICAL_SELECTION attribute must be set to custom.

Constant	Value
VMXF_ASYNCEH_MULTI_TX_SLEW_RATE_SELECT_DEFAULT	Select default slew rate parameter (default)
VMXF_ASYNCEH_MULTI_TX_SLEW_RATE_SELECT_CUSTOM	Select custom slew rate parameter

TX Signal Slew Rate

The KMXF_ASYNCEH_TX_SLEW_RATE attribute defines the TX signal slew rate. MX Foundation automatically sets the default slew rate to its minimum value. When the default option is selected, the KMXF_ASYNCEH_TX_SLEW_RATE attribute will be read only. Otherwise, the custom option of the KMXF_ASYNCEH_TX_SLEW_RATE_SELECTION attribute allows specifying the slew rate with this attribute. This is a floating point attribute.

The supported range is:

Module	Range (nsec/volt)	Default (nsec/volt)	Formula
MXF_MODULE_MULTI_EH	2.0 - 13429.5	2.0	(204800/1.22) / (n*3.125) with 4 ≤ n ≤ 26856
MXF_MODULE_MULTI	2.0 - 25600.0	2.0	102400/n with 4 ≤ n ≤ 51200

RX Differential Voltage Threshold

The KMXF_ASYNCEH_RX_DIFF_VOLTAGE_THRESHOLD attribute defines the RX differential voltage threshold. This is a floating point attribute. To modify this attribute value, the KMXF_ASYNCEH_ELECTRICAL_SELECTION attribute must be set to custom.

Range	Value (Volt)
Minimum	0.0
Maximum	25.0

Resolution: 0.05 volt Default value: 0.20 volt