AMIS-30512 Datasheet, PDF (27/30 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30512
SPI Status Register Description
All four SPI status registers have Read Access and are default to “0” after power−on or hard reset.
Table 27. Status Register 0 (SR0)
Structure
Address
Content
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Access
R
R
R
R
R
R
R
R
04h
Reset
0
0
0
0
0
0
0
0
Data
PAR
TW
CPfail
−
OPENX OPENY
−
−
Where:
R
Reset
PAR
TW
Cpfail
OPENX
OPENY
Remark:
Read only mode access
Status after power−on or hard reset
Parity check
Thermal warning
Charge pump failure
Open Coil X detected
Open Coil Y detected
Data is not latched
Table 28. Status Register 1 (SR1)
Structure
Address
Content
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Access
R
R
R
R
R
R
R
R
05h
Reset
0
0
0
0
0
0
0
0
Data
PAR
OVCXPT OVCXPB OVCXNT OVCXNB
−
−
−
Where:
R
Reset
PAR
OVXPT
OVXPB
OVXNT
OVXNB
Remark:
Read only mode access
Status after power−on or hard reset
Parity check
Over−current detected on X H−bridge: MOTXP terminal, top transistor
Over−current detected on X H−bridge: MOTXP terminal, bottom transistor
Over−current detected on X H−bridge: MOTXN terminal, top transistor
Over−current detected on X H−bridge: MOTXN terminal, bottom transistor
Data is latched
Table 29. SPI Status Register 2 (SR2)
Structure
Address
Content
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Access
R
R
R
R
R
R
R
R
06h
Reset
0
0
0
0
0
0
0
0
Data
PAR
OVCYPT OVCYPB OVCYYNT OVCYNB
TSD
−
−
Where:
R
Reset
PAR
OVCYPT
OVCYPB
OVCYNT
OVCYNB
TSD
Remark:
Read only mode access
Status after power−on or hard reset
Parity check
Over−current detected on Y H−bridge: MOTYP terminal, top transistor
Over−current detected on Y H−bridge: MOTYP terminal, bottom transistor
Over−current detected on Y H−bridge: MOTYN terminal, top transistor
Over−current detected on Y H−bridge: MOTYN terminal, bottom transistor
Thermal shutdown
Data is latched
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