TMC423_1 TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.], TMC423_1 Datasheet

TMC423_1

Manufacturer Part Number

TMC423_1

Description

Serial Triple Incremental Encoder Interface

Manufacturer

TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.]

Datasheet

1.TMC423_1.pdf (22 pages)

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TMC423 Data Sheet – (V1.13 / June 20

TRINAMIC Motion Control GmbH & Co. KG

Sternstrasse 67

D – 20357 Hamburg

GERMANY

WWW.TRINAMIC.COM

TMC423 Main Features

The TMC423 is a triple incremental encoder input chip, which interfaces to any SPI

controller. The TMC423 can especially be used in conjunction with the TMC428 triple stepper motor

controller to provide position verification or stabilization using some additional software. It integrates

24 bit counters for each encoder to provide a high position resolution without CPU interaction.

Further it allows dynamic resolution adaptation to allow direct comparison of encoder counters with

motors using different micro step resolution. All encoder counters can be latched synchronously, or

whenever a null channel event occurs, providing a position on strobe holding function. The TMC423

also provides a step / direction output with programmable signal shaping for the TMC428 as an

optional function. A multiplexer function is also integrated for the TMC428 reference switches.

Furthermore control and drive of a LED and switch matrix is implemented. All functions can also be

used in conjunction.

Applications

•

Features

•

Note: SPI is Trademark of Motorola, Inc.

Stepper Motor Position Verification

Position Maintenance

Incremental Encoder Interface Readout

Step / Direction conversion for TMC428 systems

Control of LED 6 x 4 Matrix and Switch 6 x 4 Matrix

Supports 2 and 3 channel incremental encoders with a wide range of resolutions

Allows step / direction signal extraction from TMC428 output data stream

Programmable pulse shaping for step / direction interface

24 bit integrated position resolution

Programmable prescaler for Incremental Encoder Interface

4-times evaluation of encoder signals

Fast 32 bit SPI

Can share SPI

Integrates Reference Switch Multiplexers

Package: TQ100

interface with TMC428 and supplies separate interrupt output

interface

, 2007)

ENC1_A

ENC1_B

ENC1_N

ENC2_A

ENC2_B

ENC2_N

ENC3_A

ENC3_B

ENC3_N

STEP1

STEP2

STEP3

TRST

VCCI

GND

TMS

GND

DIR1

DIR2

DIR3

TDI

TMC 423 – Datasheet

Serial Triple Incremental

Encoder Interface

TQFP-100 Package

TMC423

compatible

COLUMN_PIN(0)

COLUMN_PIN(1)

COLUMN_PIN(2)

COLUMN_PIN(3)

GND

VKS (GND)

VPP (VCCA)

SW_ROW_PIN(0)

SW_ROW_PIN(1)

SW_ROW_PIN(2)

SW_ROW_PIN(3)

SW_ROW_PIN(4)

SW_ROW_PIN(5)

LED_ROW_PIN(0)

VCCI

VSV (VCCA)

LED_ROW_PIN(1)

LED_ROW_PIN(2)

LED_ROW_PIN(3)

LED_ROW_PIN(4)

LED_ROW_PIN(5)

GND

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