AMIS-30521 AMI Semiconductor, Inc., AMIS-30521 Datasheet - Page 21

• Manufacturer Part Number: AMIS-30521
• Description: Micro-stepping Motor Driver
• Manufacturer: AMI Semiconductor, Inc.

AMIS-30521 Micro-stepping Motor Driver
EMC[1:0]
Table 25: SPI Control Parameter Overview EMC[1:0]
SM[2:0]
Table 26: SPI Control Parameter Overview SM[2:0]
9.4 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: SPI Status Register 0
Table 28: SPI Status Register 1
Address
04h
Address
05h
AMI Semiconductor – June 2007, M-20683-001
www.amis.com
Index
Index
Where:
R
Reset
PAR
TW
Cpfail
OPENX
OPENY
Remark:
Where:
R
Reset
PAR
OVXPT
OVXPB
OVXNT
OVXNB
Remark:
0
1
2
3
4
5
6
7
0
1
2
3
Content
Access
Reset
Data
EMC[1:0]
0
0
0
0
1
1
1
1
Content
Access
Reset
Data
0
0
1
1
SM[2:0]
Adjusts the dV/dt of the PWM voltage slopes on the motor pins.
Selects the micro-stepping mode.
Read only mode access
Status after power-pn or hard reset
Parity check
Thermal warning
Charge pump failure
Open Coil X detected
Open Coil Y detected
Data is not latched
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
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
Bit 7
PAR
Bit 7
R
0
PAR
R
0
Slope (V/µs)
150
100
50
25
OVCXPT
Step Mode
Bit 6
Bit 6
TW
R
0
R
0
Full
N/A
1
1
Status Register 0 (SR0)
Status Register 1 (SR1)
1
¼
½
½
/
/
/
32
16
8
CPfail
OVCXPB
Bit 5
Bit 5
R
0
R
0
OVCXNT
Bit 4
Bit 4
Structure
R
0
-
Structure
R
0
21
OPENX
OVCXNB
Bit 3
Bit 3
R
0
Turn-on and turn-off voltage slope 10% to 90%
R
0
OPENY
Bit 2
Bit 2
R
0
R
0
-
Uncompensated half-step
Compensated half-step
Remark
For future use
Bit 1
Bit 1
Micro-step
Micro-step
Micro-step
Micro-step
R
0
-
Remark
Full step
R
0
-
“
“
“
Bit 0
Bit 0
R
0
-
R
0
-
Data Sheet