AMIS-30523 Datasheet, PDF (33/35 Pages) ON Semiconductor – CAN Micro-Stepping Motor Driver

AMIS−30523
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
‘0’
‘1’ = failure: indicates that the charge pump
does not reach the required voltage level.
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
1
Status Register 1 ‘0’ = no failure
‘0’
H−bridge; MOTXN terminal;
‘1’ = failure: indicates that over current is
Bottom tran.
detected at bottom transistor XN−terminal
OVCXNT
OVer Current on X
1
Status Register 1 ‘0’ = no failure
‘0’
H−bridge; MOTXN terminal;
‘1’ = failure: indicates that over current is
Top transist.
detected at top transistor XN−terminal
OVCXPB
OVer Current on X
1
Status Register 1 ‘0’ = no failure
‘0’
H−bridge; MOTXP terminal;
‘1’ = failure: indicates that over current is
Bottom transist.
detected at bottom transistor XP−terminal
OVCXPT
OVer Current on X
1
Status Register 1 ‘0’ = no failure
‘0’
H−bridge; MOTXP terminal;
‘1’ = failure: indicates that over current is
Top transist.
detected at top transistor XP−terminal
OVCYNB
OVer Current on Y
1
Status Register 2 ‘0’ = no failure
‘0’
H−bridge; MOTYN terminal;
‘1’ = failure: indicates that over current is
Bottom transist.
detected at bottom transistor YN−terminal
OVCYNT
OVer Current on Y
1
Status Register 2 ‘0’ = no failure
‘0’
H−bridge; MOTYN terminal;
‘1’ = failure: indicates that over current is
Top transist.
detected at top transistor YN−terminal
OVCYPB
OVer Current on Y
1
Status Register 2 ‘0’ = no failure
‘0’
H−bridge; MOTYP terminal;
‘1’ = failure: indicates that over current is
Bottom transist.
detected at bottom transistor YP−terminal
OVCYPT
OVer Current on Y
1
Status Register 2 ‘0’ = no failure
‘0’
H−bridge; MOTYP terminal;
‘1’ = failure: indicates that over current is
Top transist.
detected at top transistor YP−terminal
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.
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