ST7FMC2N6B6(2004) 查看數據表（PDF） - STMicroelectronics

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ST7FMC2N6B6
(Rev.:2004)

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

STMicroelectronics 

ST7MC1/ST7MC2

MOTOR CONTROLLER (Cont’d)

Note

If only one encoder output is available, it may be

input either on MCIA or MCIB and an encoder

clock signal will still be generated (in this case the

frequency will be 50% less than with two inputs.

The state of EDIR bit will depend on signals

present on MCIA and MCIB pins, the result will be

given by the sampling of MCIA with MCIB falling

edges.

9.6.6.14 Summary

Input Detection block set-up for the different avail-

able modes is summarized in the Table 35.

Table 35. Input Detection Block set-up

Input Detection

Block Mode

Sensor Type

Edge sensitivity

Position Sensor Hall, Optical,... Both rising and falling edges

Sensorless

N/A

N/A

Incremental

Encoder

Both rising and falling edges

(imposed)

Speed Sensor

Tachogenerator,

Hall, Optical...

Rising edge

Falling edge

Both rising and falling edges

SR

TES[1:0] bits

IS[1:0] bits

bit

(Tacho Edge

Selection)

(Input Selection)

00

1

00

01

10

00

0

00

01

10

Any configuration dif-

ferent from 00:

11

01 10 11

00

01

01

x

10

00

10

01

10

00

11

01

10

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