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L6480 Datasheet(PDF) 59 Page - STMicroelectronics |
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L6480 Datasheet(HTML) 59 Page - STMicroelectronics |
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59 / 73 page  L6480 Programming manual Doc ID 023278 Rev 3 59/73 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): 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: MOT_STATUS indicates the current motor status: Any attempt to write to the register causes the command to be ignored and the NOTPERF_CMD to rise (Section 9.1.24). Table 45. STATUS register TH_STATUS bits TH_STATUS Status 00 Normal 01 Warning 1 0 Bridge shutdown 1 1 Device shutdown Table 46. STATUS register DIR bit DIR Motor direction 1Forward 0Reverse Table 47. STATUS register MOT_STATE bits MOT_STATUS Motor status 0 0 Stopped 01 Acceleration 10 Deceleration 1 1 Constant speed |
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