ST7FMC1M2T3 查看數據表（PDF） - STMicroelectronics

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ST7FMC1M2T3

8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI™

STMicroelectronics 

ST7MC1xx/ST7MC2xx

MOTOR CONTROLLER (Cont’d)

Table 23. MTC Registers

Register

MTIM

MTIML

MZPRV

MZREG

MCOMP

MDREG

MWGHT

MPRSR

MIMR

MISR

MCRA

MCRB

MCRC

MPHST

MDFR

MCFR

MREF

MPCR

MREP

MCPWH

MCPWL

MCPVH

MCPVL

MCPUH

MCPUL

MCP0H

MCP0L

MDTG

MPOL

MPWME

MCONF

MPAR

MZFR

MSCR

Description

Timer Counter Register

Timer LSB (mode depend-

ent)

Capture Zn-1 Register

Capture Zn Register

Compare Cn+1 Register

Demagnetization Reg.

An Weight Register

Prescaler & Sampling Reg.

Interrupt Mask Register

Interrupt Status Register

Control Register A

Control Register B

Control Register C

Phase State Register

D Event Filter Register

Current Feedback Filter

Register

Reference register

PWM Control Register

Repetition Counter Reg.

Compare W Register High

Compare W Register Low

Compare V Register High

Compare V Register Low

Compare U Register High

Compare U Register Low

Compare 0 Register High

Compare 0 Register Low

Dead Time Generator reg.

Polarity Register

PWM register

Configuration register

Parity register

Z Event Filter Register

Sampling Clock Register

Register

page

(RPGS

bit)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

Page

207

207

207

207

207

207

208

208

208

209

210

212

213

214

216

215

217

218

219

219

219

219

219

220

220

220

220

221

222

223

224

225

226

227

10.6.2 Main Features

■ Two on-chip analog comparators, one for BEMF

zero-crossing detection, the other for current

regulation or limitation

■ Seven selectable reference voltages for the

hysteresis comparator (0.2 V, 0.6 V, 1 V, 1.5 V,

2 V, 2.5 V, 3.5 V) and the possibility to select an

external reference pin (MCVREF).

■ 8-bit timer (MTIM) with three compare registers

and two capture features, which may be used as

the Delay manager of a speed measurement

unit

■ Measurement window generator for BEMF

zero-crossing detection

■ Filter option for the zero-crossing detection.

■ Auto-calibrated prescaler with 16 division steps

■ 8x8-bit multiplier

■ Phase input multiplexer

■ Sophisticated output management:

– The six output channels can be split into two

groups (high & low)

– The PWM signal can be multiplexed on high,

low or both groups, alternatively or simultane-

ously, for six-step motor drives

– 12-bit PWM generator with full modulation ca-

pability (0 and 100% duty cycle), edge or cent-

er-aligned patterns

– Dedicated interrupt for PWM duty cycles up-

dating and associated PWM repetition coun-

ter.

– Programmable deadtime insertion unit.

– Programmable High frequency Chopper in-

sertion and high current PWM outputs for di-

rect optocoupler drives.

– The output polarity is programmable channel

by channel.

– A programmable bit (active low) forces the

outputs in HiZ, Low or High state, depending

on option byte 1 (refer to “ST7FMC Device

Configuration And Ordering Information” sec-

tion).

– An “emergency stop” input pin (active low)

asynchronously forces the outputs in HiZ, Low

or High state, depending on option byte 1 (re-

fer to “ST7FMC Device Configuration And Or-

dering Information” section).

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