AMIS−30523
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33
Table 18. SPI STATUS FLAGS OVERVIEW
Mnemonic Flag
Length
(bit)
Related
SPI Register
Comment
Reset
State
CPFail Charge pump failure 1 Status Register 0 ‘0’ = no failure
‘1’ = failure: indicates that the charge pump
does not reach the required voltage level.
‘0’
MSP[6:0] Micro−step position 7 Status Register 3 Translator micro step position ‘0000000’
OPENX OPEN Coil X 1 Status Register 0 ‘1’ = Open coil detected ‘0’
OPENY OPEN Coil Y 1 Status Register 0 ‘1’ = Open coil detected ‘0’
OVCXNB OVer Current on X
H−bridge; MOTXN terminal;
Bottom tran.
1 Status Register 1 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at bottom transistor XN−terminal
‘0’
OVCXNT OVer Current on X
H−bridge; MOTXN terminal;
Top transist.
1 Status Register 1 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at top transistor XN−terminal
‘0’
OVCXPB OVer Current on X
H−bridge; MOTXP terminal;
Bottom transist.
1 Status Register 1 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at bottom transistor XP−terminal
‘0’
OVCXPT OVer Current on X
H−bridge; MOTXP terminal;
Top transist.
1 Status Register 1 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at top transistor XP−terminal
‘0’
OVCYNB OVer Current on Y
H−bridge; MOTYN terminal;
Bottom transist.
1 Status Register 2 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at bottom transistor YN−terminal
‘0’
OVCYNT OVer Current on Y
H−bridge; MOTYN terminal;
Top transist.
1 Status Register 2 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at top transistor YN−terminal
‘0’
OVCYPB OVer Current on Y
H−bridge; MOTYP terminal;
Bottom transist.
1 Status Register 2 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at bottom transistor YP−terminal
‘0’
OVCYPT OVer Current on Y
H−bridge; MOTYP terminal;
Top transist.
1 Status Register 2 ‘0’ = no failure
‘1’ = failure: indicates that over current is
detected at top transistor YP−terminal
‘0’
TSD Thermal shutdown 1 Status Register 2 ‘0’
TW Thermal warning 1 Status Register 0 ‘0’
WD Watchdog event (Note 21) 1 Status Register 0 ‘1’ = watchdog reset after time−out ‘0’
21. WD – This bit indicates that the watchdog timer has not been cleared properly. If the master reads that WD is set to “1” after reset, it means
that a watchdog reset occurred (warm boot) instead of POR (cold boot). WD bit will be cleared only when the master writes “0” to WDEN
bit.