L6470PD datasheet(49/70 Pages) STMICROELECTRONICS

部件名	L6470PD

功能描述	dSPIN fully integrated microstepping motor driver with motion engine and SPI

PDF	70 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

49 / 70 page

L6470

Programming manual

Doc ID16737 Rev 5

49/70

9.1.21

CONFIG

The CONFIG register has the following structure:

The OSC_SEL and EXT_CLK bits set the system clock source:

Table 21.

ALARM_EN register

ALARM_EN bit

Alarm condition

0 (LSB)

Overcurrent

Thermal shutdown

Thermal warning

Undervoltage

Stall detection (Bridge A)

Stall detection (Bridge B)

Switch turn-on event

7 (MSB)

Wrong or non-performable command

Table 22.

CONFIG register

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

F_PWM_INT

F_PWM_DEC

POW_SR

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

OC_SD

RESERVED EN_VSCOMP SW_MODE EXT_CLK

OSC_SEL

Table 23.

Oscillator management

EXT_C

OSC_SEL[2..0]

Clock source

OSCIN

OSCOUT

0000

Internal oscillator: 16 MHz

Unused

0001

0010

0011

1000

Internal oscillator: 16 MHz

Unused

Supplies a 2-MHz

clock

1001

Internal oscillator: 16 MHz

Unused

Supplies a 4-MHz

clock

1010

Internal oscillator: 16 MHz

Unused

Supplies an 8-MHz

clock

1011

Internal oscillator: 16 MHz

Unused

Supplies a 16-MHz

clock

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