參數(shù)資料
型號(hào)： AMIS-30621-AGA
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 0.8 A, PDSO20
封裝： 300 INCH, PLASTIC, SOIC-20
文件頁(yè)數(shù)： 18/57頁(yè)
文件大?。?/td> 1017K
代理商： AMIS-30621-AGA
AMIS-30621 LIN Micro-stepping Motor Driver
Data Sheet
25
AMI Semiconductor
– Sept. 2007, Rev 1.5
www.amis.com
14.2.8. OTP Register
OTP Memory Structure
Table 16 shows how the parameters to be stored in the OTP memory are located.
Table 16: OTP Memory Structure
Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x00
OSC3
OSC2
OSC1
OSC0
IREF3
IREF2
IREF1
IREF0
0x01
EnableLIN
TSD2
TSD1
TSD0
BG3
BG2
BG1
BG0
0x02
ADM
PA3
PA2
PA1
PA0
0x03
Irun3
Irun2
Irun1
Irun0
Ihold3
Ihold2
Ihold1
Ihold0
0x04
Vmax3
Vmax2
Vmax1
Vmax0
Vmin3
Vmin2
Vmin1
Vmin0
0x05
SecPos10
SecPos9
SecPos8
Shaft
Acc3
Acc2
Acc1
Acc0
0x06
SecPos7
SecPos6
SecPos5
SecPos4
SecPos3
SecPos2
SecPos1
SecPos0
0x07
StepMode1
StepMode0
LOCKBT
LOCKBG
Parameters stored at address 0x00 and 0x01 and bit LOCKBT are already programmed in the OTP memory at circuit delivery. They
correspond to the calibration of the circuit and are just documented here as an indication.
Each OPT bit is at ‘0’ when not zapped. Zapping a bit will set it to ‘1’. Thus only bits having to be at ‘1’ must be zapped. Zapping of a bit
already at ‘1’ is disabled.
Each OTP byte will be programmed separately (see command SetOTPparam). Once OTP programming is completed, bit LOCKBG can
be zapped, to disable future zapping; otherwise any OTP bit at ‘0’ could still be zapped by using a SetOTPparam command.
Table 17: OTP Overwrite Protection
Lock Bit
Protected Bytes
LOCKBT
(factory zapped before delivery)
0x00 to 0x01
LOCKBG
0x00 to 0x07
The command used to load the application parameters via the LIN bus in the RAM prior to an OTP Memory programming is
. This allows for a functional verification before using a SetOTPparam command to program and zap separately one
OTP memory byte. A GetOTPparam command issued after each SetOTPparam command allows verifying the correct byte zapping.
Note:
zapped bits will really be “active” after a GetOTPparam or a ResetToDefault command or after a power-up.
Application Parameters Stored in OTP Memory
Except for the physical address PA[3:0] these parameters, although programmed in a non-volatile memory can still be overridden in
RAM by a LIN writing operation.
PA[3:0]
In combination with HW[2:0] it forms the physical address AD[6:0] of the stepper motor. Up to 128 stepper motors can
theoretically be connected to the same LIN bus.
ADM
Addressing mode bit enabling to swap the combination of OTP memory bits PA[3:0] with hardwired address bits
HW[2:0] to form the physical address AD[6:0] of the stepper motor.
StepMode
Indicator of stepping mode to be used.
Step Mode
0
1/2 stepping
0
1
1/4 stepping
1
0
1/8 stepping
1
1/16 stepping
Shaft
Indicator of reference position. If Shaft = ‘0’, the reference position is the maximum inner position, whereas if
Shaft
= ‘1’, the reference position is the maximum outer position.
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AMIS30621C6216G 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 LIN STEPPER DRIVER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
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