AMIS-30624 AMI Semiconductor, Inc., AMIS-30624 Datasheet - Page 47

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

AMIS-30624 I
GetFullStatus2
This command is provided to the circuit by the master to get the actual, target and secure position of the steppermotor. Both the actual
and target position are returned in signed two’s complement 16-bit format. Secure position is coded in 10-bit format. According to the
programmed stepping mode the LSBs of ActPos[15:0] and TagPos[15:0] may have no meaning and should be assumed to be ‘0’.
This command also gives additional information concerning stall detection. Refer to Table 18 and Table 19 to see the meaning of the
parameters sent back to the I
AMI Semiconductor – Apr. 2007, Rev 3.1, M-20664-003
www.amis.com
GetFullStatus2 corresponds to the following I
Byte
Byte
0
1
0
1
2
3
4
5
6
7
8
Where:
OTP(n)
HW
ActPos[15:0]
TagPos[15:0]
SecPos[10:0]
FS2StallEn[2:0]
DC100
AbsStall
DelStallLo
DelStallHi :
MinSamples[2:0]
DC100StEn
PWMJEn
Command
Content
Content
Address
Address
Address
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
2
C Microstepping Motordriver
2
C master.
AbsStall
Bit 7
Bit 7
1
1
1
1
OTP address bits PA[3:0]
Hardwired address bit
Actual position
Target position
Secure position
Number of full steps after stall detection is enabled
Flag indicating PWM is at 100 percent duty cycle
Stall detected because the absolute threshold is not reached
Stall detected because the delta threshold is under crossed
Stall detected because the delta threshold is crossed
Back-emf sampling delay time
Enables the switch off of stall detection when DC100 = 1
PWM jitter enable
FS2StallEn[2:0]
DelStallLo
Bit 6
Bit 6
GetFullStatus2 Command Frame
1
1
1
1
GetFullStatus2 Response Frame
2
C command frame:
DelStallHi
OTP3
OTP3
Bit 5
Bit 5
1
1
47
ActPos[15:8]
TagPos[15:8]
ActPos[7:0]
TagPos[7:0]
SecPos[7:0]
OTP2
OTP2
OTP3
Bit 4
Bit 4
Structure
Structure
1
1
MinSamples[2:0]
DC100
OTP1
OTP1
OTP2
Bit 3
Bit 3
1
OTP0
OTP0
OTP1
Bit 2
Bit 2
1
SecPos[10:8]
DC100StEn
OTP0
Bit 1
Bit 1
HW
HW
0
PWMJEn
Bit 0
Bit 0
HW
0
0
1
Data Sheet