參數(shù)資料
型號(hào)： ST72141K2B3/XXX
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
封裝： 0.400 INCH, PLASTIC, SDIP-32
文件頁(yè)數(shù)： 99/133頁(yè)
文件大小： 2615K
代理商： ST72141K2B3/XXX
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Obsolete
Product(s)
- Obsolete
Product(s)
ST72141K2
68/133
MOTOR CONTROLLER (Cont’d)
INTERRUPT MASK REGISTER (MIMR)
Read/Write (except bits 7:6)
Reset Value: 0000 0000 (00h)
Bit 7 = HST: Hysteresis Comparator Value.
This read only bit contains the hysteresis compa-
rator output.
0: Demagnetisation/BEMF comparator is under
VREF
1: Demagnetisation/BEMF comparator is above
VREF
Bit 6 = CL: Current Loop Comparator Value.
This read only bit contains the current loop compa-
rator output value.
0: Current detect voltage is under VCREF
1: Current detect voltage is above VCREF
Bit 5 = RIM: Ratio update Interrupt Mask bit.
0: Ratio update interrupts (R+ and R-) disabled
1: Ratio update interrupts (R+ and R-) enabled
Bit 4 = OIM: Multiplier Overflow Interrupt Mask bit.
0: Multiplier Overflow interrupt disabled
1: Multiplier Overflow interrupt enabled
Bit 3 = EIM: Emergency stop Interrupt Mask bit.
0: Emergency stop interrupt disabled
1: Emergency stop interrupt enabled
Bit 2 = ZIM: Back EMF Zero-crossing Interrupt
Mask bit.
0: BEMF Zero-crossing Interrupt disabled
1: BEMF Zero-crossing Interrupt enabled
Bit 1 = DIM: End of Demagnetization Interrupt
Mask bit.
0: End of Demagnetization interrupt disabled
1: End of Demagnetization interrupt enabled if the
HDM or SDM bit in the MCRB register is set
Bit 0 = CIM: Commutation Interrupt Mask bit
0: Commutation Interrupt disabled
1: Commutation Interrupt enabled
INTERRUPT STATUS REGISTER (MISR)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7 = Reserved. Forced by hardware to 0.
Bit 6 = RPI: Ratio Increment interrupt flag.
Autoswitched mode (SWA bit =0):
0: No R+ interrupt pending
1: R+ Interrupt pending
Switched mode (SWA bit =1):
0: No R+ action
1: The hardware will increment the ST[3:0] bits
when the next commutation occurs and shift all
timer registers right.
Bit 5 = RMI: Ratio Decrement interrupt flag.
Autoswitched mode (SWA bit =0):
0: No R- interrupt pending
1: R- Interrupt pending
Switched mode (SWA bit =1):
0: No R- action
1: The hardware will decrement the ST[3:0] bits
when the next commutation occurs and shift all
timer registers left.
Bit 4 = OI: Multiplier Overflow interrupt flag.
0: No Multiplier Overflow interrupt pending
1: Multiplier Overflow interrupt pending
Bit 3 = EI: Emergency stop Interrupt flag.
0: No Emergency stop interrupt pending
1: Emergency stop interrupt pending
Bit 2 = ZI: BEMF Zero-crossing interrupt flag.
0: No BEMF Zero-crossing Interrupt pending
1: BEMF Zero-crossing Interrupt pending
Bit 1 = DI: End of Demagnetization interrupt flag.
0: No End of Demagnetization interrupt pending
1: End of Demagnetization interrupt pending
Bit 0 = CI: Commutation interrupt flag
0: No Commutation Interrupt pending
1: Commutation Interrupt pending
70
HST
CL
RIM
OIM
EIM
ZIM
DIM
CIM
70
0
RPI
RMI
OIEI
ZI
DICI
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