Datasheet

Programming manual L6480
60/75 DocID023278 Rev 4
When the HiZ flag is high it indicates that the bridges are in high impedance state. Any
motion command causes the device to exit from High Z state (HardStop and SoftStop
included), unless error flags forcing a High Z state are active.
The UVLO flag is active low and is set by an undervoltage lockout or reset events (power-up
included).
The UVLO_ADC flag is active low and indicates an ADC undervoltage event.
The OCD flag is active low and indicates an overcurrent detection event.
The STEP_LOSS_A and STEP_LOSS_B flags are forced low when a stall condition is
detected on bridge A or bridge B respectively.
The CMD_ERROR flag is active high and indicates that the command received by SPI can't
be performed or does not exist at all.
The SW_F reports the SW input status (low for open and high for closed).
The SW_EVN flag is active high and indicates a switch turn-on event (SW input falling
edge).
TH_STATUS bits indicate the current device thermal status (Section 6.12 on page 30):
UVLO, UVLO_ADC, OCD, STEP_LOSS_A, STEP_LOSS_B, CMD_ERROR, SW_EVN and
TH_STATUS bits are latched: when the respective conditions make them active (low or
high) they remain in that state until a GetStatus command is sent to the IC.
The BUSY bit reflects the BUSY pin status. The BUSY flag is low when a constant speed,
positioning or motion command is under execution and is released (high) after the
command has been completed.
The STCK_MOD bit is an active high flag indicating that the device is working in Step-clock
mode. In this case the step-clock signal should be provided through the STCK input pin.
The DIR bit indicates the current motor direction:
Table 45. STATUS register TH_STATUS bits
TH_STATUS Status
0 0 Normal
01Warning
1 0 Bridge shutdown
1 1 Device shutdown
Table 46. STATUS register DIR bit
DIR Motor direction
1Forward
0 Reverse