ST7MC2 datasheet(147/308 Pages) STMICROELECTRONICS

Part #	ST7MC2

Description	8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI

PDF	308 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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147 / 308 page

ST7MC1/ST7MC2

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MOTOR CONTROLLER (Cont’d)

Figure 78. Input Stage in Sensorless or Sensor Mode

(bits TES[1:0] = 00)

VREF

Inputn Sel Reg

VR[2:0]

MCIC

MCIA

MCIB

IS[1:0]

CS,H

Input Block

Input Comparator Block

Event Detection

ZVD bit

HDMn bit*

to ZH Generation

CPBn bit*

REO bit

CS,H

DS,H

CPBn bit*

12-bit PWM generator Signal U

Sampling frequency

V0C1 bit

Sample

CS,H

DS,H

* = Preload register, changes taken into account at next C event

MPHST Register

MPOL Register

MCRA Register

MCRB Register MPOL Register

MCRB Register

Reg

DS,H

events:

Commutation

BEMF Zero-crossing

End Of Demagnetization

Emergency Stop

Notes:

Updated/Shifted on R

Ratio Updated (+1 or -1)

Multiplier Overflow

R+/-

Current Mode

Voltage Mode

Regn

Updated with Regn+1 on C

Branch taken after C event

Branch taken after D event

MCRC Register

MCVREF

PZ bit

MCRA Register

111

Sample

SPLG bit

MCRC Register

SR bit

MCRA Register

MCONF Register

DS[3:0] bits

DWF[3:0]

MDFR Register

ZWF[3:0]

MZFR Register

SR bit

MCRA Register

to DH Generation

Z Event Generation

D Event Generation

fSCF

ST7MC2 Datasheet(PDF) 147 Page - STMicroelectronics

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