ST7FMC1K2TC STMICROELECTRONICS [STMicroelectronics], ST7FMC1K2TC Datasheet - Page 169
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ST7FMC1K2TC
Manufacturer Part Number
ST7FMC1K2TC
Description
8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST7FMC1K2TC.pdf
(308 pages)
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Manufacturer
Quantity
Price
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Part Number:
ST7FMC1K2TCE
Manufacturer:
STMicroelectronics
Quantity:
10 000
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MOTOR CONTROLLER (Cont’d)
Figure 92. Step Ratio Functional Diagram
** Only in Auto-switched mode (SWA=1 in MCRA register)
MCOMP = MCOMP/2**
MZREG = MZREG / 2
MDREG = MDREG/2
MTIM Timer Overflow
Ratio = Ratio + 1
MZPRV = MZPRV/2
Counter = Counter/2
MPRSR Register
Slow-down control
Ratio < Fh?
Begin
End
Yes
MTIM Timer control over T
No
+1
-1
ST[3:0] Bits
MTIM Timer = 100h?
R-
R+
Zn < 55h?
4
ratio
Z Capture with MTIM Timer Underflow (Zn < 55h)
and register operation
2 MHz - 62.5 Hz
1 / 2Ratio
f
PERIPH
1 / 2
MDREG = MDREG x 2
MZREG = MZREG x 2
MZPRV = MZPRV x 2
Counter = Counter x 2
Ratio = Ratio - 1
Compute MCOMP
Tratio
ck
Speed-up control
Ratio > 0?
Begin
End
Yes
No
ST7MC1/ST7MC2
169/308
1
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