User Left Bus Selection

The KMXF_ASCB_USER_LEFT_BUS_SELECT attribute holds the actual user left bus selection. Note that it is not possible to set VMXF_ASCB_USER_BUS_SELECT_BACKUP or VMXF_ASCB_USER_BUS_SELECT_BOTH if the clock mode is already enabled.

Constant	Value
VMXF_ASCB_USER_BUS_SELECT_NONE	All buses disabled (default)
VMXF_ASCB_USER_BUS_SELECT_PRIMARY	Primary bus enabled
VMXF_ASCB_USER_BUS_SELECT_BACKUP	Backup bus enabled
VMXF_ASCB_USER_BUS_SELECT_BOTH	Primary and backup buses enabled

User Right Bus Selection

The KMXF_ASCB_USER_RIGHT_BUS_SELECT attribute holds the actual user left bus selection. Note that it is not possible to set VMXF_ASCB_USER_BUS_SELECT_BACKUP or VMXF_ASCB_USER_BUS_SELECT_BOTH if the clock mode is already enabled.

Note: For version A and B busses, only one user is allowed to respond to a user request, on either of the left or right bus. For version C, two users may respond on each bus with a different address.

Constant	Value
VMXF_ASCB_USER_BUS_SELECT_NONE	All buses disabled (default)
VMXF_ASCB_USER_BUS_SELECT_PRIMARY	Primary bus enabled
VMXF_ASCB_USER_BUS_SELECT_BACKUP	Backup bus enabled
VMXF_ASCB_USER_BUS_SELECT_BOTH	Primary and backup buses enabled

User Left Response Address

The KMXF_ASCB_USER_LEFT_BUS_ADRS attribute holds the actual user left response address value. This value must differ from the right bus address. In order to generate an error with two users using the same address, the MXF_ASCB_TX_REC_CTRL_ADRS_NOT_SENT bit must be set in the data sent on one side.

Range	Value
Minimum	0 (default)
Maximum	127

User Right Response Address

The KMXF_ASCB_USER_RIGHT_BUS_ADRS attribute holds the actual user right response address value. This value must differ from the left bus address. In order to generate an error with two users using the same address, the MXF_ASCB_TX_REC_CTRL_ADRS_NOT_SENT bit must be set in the data sent on one side.

Range	Value
Minimum	0 (default)
Maximum	127

User Message Phase

The KMXF_ASCB_USER_MSG_PHASE attribute holds the user message phase value. For all the user messages, transmissions always occur MXF_ASCB_DATAREC.msgPhase time or KMXF_ASCB_USER_MSG_PHASE time after the reception of a user request. The attribute value resolution is based on the timebase resolution.

Range	Value (microseconds)
minimum	0 (default)
maximum	65535

Default value: 92 microseconds