AMIS-30512 Datasheet, PDF (28/30 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30512
Table 30. SPI Status Register 3 (SR3)
Address
Content
Bit 7
Bit 6
Access
R
R
07h
Reset
0
0
Data
PAR
Where:
R
Reset
PAR
MSP[6:0]
Remark:
Read only mode access
Status after power−on or hard reset
Parity check
Translator micro−step position
Data is not latched
Table 31. SPI Status Flags Overview
Flag
Length
Mnemonic (bit)
Charge pump failure
CPFail
1
Related
SPI Register
Status Register 0
Micro−step position
MSP [6:0]
7
OPEN Coil X
OPENX
1
OPEN Coil Y
OPENY
1
OVer Current on X
OVCXNB
1
H−bridge; MOTXN
terminal; Bottom tran.
OVer Current on X
OVCXNT
1
H−bridge; MOTXN
terminal; Top tran.
OVer Current on X
OVCXPB
1
H−bridge; MOTXP
terminal; Bottom tran.
OVer Current on X
OVCXPT
1
H−bridge; MOTXP
terminal; Top tran.
OVer Current on Y
OVCYNB
1
H−bridge; MOTYN
terminal; Bottom tran.
OVer Current on Y
OVCYNT
1
H−bridge; MOTYN
terminal; Top tran.
OVer Current on Y
OVCYPB
1
H−bridge; MOTYP
terminal; Bottom tran.
OVer Current on Y
OVCYPT
1
H−bridge; MOTYP
terminal; Top tran.
Thermal shutdown
TSD
1
Thermal warning
TW
1
Watchdog event
WD
1
Status Register 3
Status Register 0
Status Register 0
Status Register 1
Status Register 1
Status Register 1
Status Register 1
Status Register 2
Status Register 2
Status Register 2
Status Register 2
Status Register 2
Status Register 0
Status Register 0
Bit 5
R
0
Structure
Bit 4
Bit 3
R
R
0
0
MSP[6:0]
Bit 2
R
0
Bit 1
R
0
Bit 0
R
0
Comment
‘0’ = no failure
‘1’ = failure: indicates that the charge pump does
not reach the required voltage level.
Translator micro−step position
Reset
State
‘0’
‘0000000’
‘1’ = Open coil detected
‘0’
‘1’ = Open coil detected
‘0’
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at bottom transistor XN−terminal
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at top transistor XN−terminal
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at bottom transistor XP−terminal
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at top transistor XP−terminal
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at bottom transistor YN−terminal
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at top transistor YN−terminal
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at bottom transistor YP−terminal
‘0’ = no failure
‘0’
‘1’ = failure: indicates that over current is detected
at top transistor YP−terminal
‘0’
‘0’
‘1’ = watchdog reset after time−out
‘0’
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