AMIS-30624 AMI Semiconductor, Inc., AMIS-30624 Datasheet - Page 51

• Manufacturer Part Number: AMIS-30624
• Description: I2c Microstepping Motordriver
• Manufacturer: AMI Semiconductor, Inc.

AMIS-30624 I
SetPosition
This command is provided to the circuit by the I
details. The priority encoder table
SoftStop
This command will be internally triggered when the chip temperature rises above the thermal shutdown threshold (see Table 5 and
Section 15.2.5). It provokes an immediate deceleration to Vmin (see
reached. Once the motor is stopped, TagPos register is overwritten with value in ActPos register to ensure keeping the stop position.
The I
TestBemf
This command is provided to the circuit by the I
Once activated, it can be stopped only after POR. During the Bemf observation, reading of the SWI state is internally forbidden.
AMI Semiconductor – Apr. 2007, Rev 3.1, M-20664-003
www.amis.com
SetPosition corresponds to the following I
SoftStop corresponds to the following I
TestBemf corresponds to the following I
2
C Master for some safety reasons can also issue a SoftStop command.
Byte
Byte
Byte
0
1
2
3
4
5
0
1
0
1
Where:
Pos [15:0] Signed 16-bit position set-point for motor.
Command
Command
Command
Content
Address
Content
Address
Content
Address
Data 1
Data 2
Data 3
Data 4
2
C Microstepping Motordriver
(see Priority Encoder)
Bit 7
Bit 7
Bit 7
1
1
1
1
1
1
1
1
2
2
C command frame:
C command frame:
2
2
Bit 6
Bit 6
Bit 6
C command frame:
2
C master in order to output the Bemf integrator output to the SWI output of the chip.
C master to drive the motor to a given absolute position. See
1
0
1
0
1
0
1
1
SetPosition Command Frame
TestBemf Command Frame
SoftStop Command Frame
acknowledges the cases where a SetPosition command will be ignored.
OTP3
OTP3
OTP3
Bit 5
Bit 5
Bit 5
0
1
1
0
0
51
Minimum
OTP2
OTP2
OTP2
Bit 4
Bit 4
Bit 4
0
1
1
0
1
Structure
Structure
Structure
Pos[15:8]
Pos[7:0]
Velocity) followed by a stop, regardless of the position
OTP1
OTP1
OTP1
Bit 3
Bit 3
Bit 3
1
1
1
1
1
OTP0
OTP0
OTP0
Bit 2
Bit 2
Bit 2
0
1
1
1
1
Bit 1
Bit 1
Bit 1
HW
HW
HW
1
1
1
1
1
Bit 0
Bit 0
Bit 0
Positioning
0
1
0
1
0
1
1
1
Data Sheet
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