Datasheet
TMC429 DATASHEET (v. 1.07 / 2012-AUG-01) 63
Copyright © 2010-2012, TRINAMIC Motion Control GmbH & Co. KG
Table 10-2: TMC429 interface configuration register ............................................................................ 33
Table 10-3: Stepper motor global parameter register............................................................................ 35
Table 10-4: Global parameter LSMD (last stepper motor driver) .......................................................... 35
Table 10-5: Association of reference inputs depending on configuration bits refmux & mot1r ............. 38
Table 11-1: Partitioning of the on-chip RAM address space ................................................................. 41
Table 12-1: Primary signal codes .......................................................................................................... 42
Table 12-2: Datagram example and RAM contents for three stepper motor driver chain ..................... 44
Table 12-- ......................... 45
Table 13-1: Scheme of ¼ sine wave period with 6 bit resolution and 64 ( 32 x 2 ) values .................... 46
Table 13-2 Datagrams for initialization of a quarter sine wave period microstep look-up-table ......... 47
Table 13-3: Phase Bits and Fast Decay Control Bits ............................................................................. 48
Table 13-4: Wave look-up table (LUT) indices for different microstep resolutions ............................... 48
Table 16-1: Dimensions of Package SSOP16, 150 MILS (Note: BSC Best Case) ............................ 52
Table 16-2: Dimensions of Package SOP24, 300 MILS (Note: BSC Best Case) .............................. 53
Table 16-3: Dimensions of 5x5mm Package QFN32 ............................................................................ 54
Table 18-1: Characteristics of the on-chip voltage regulator ................................................................. 56
Table 19-1: Characteristics of the on-chip power-on-reset.................................................................... 57
Table 20-1 : Absolute maximum ratings ................................................................................................ 58
Table 20-2: DC characteristics .............................................................................................................. 58
Table 20-3: DC characteristics 3.3V supply mode ............................................................................. 58
Table 20-4: DC characteristics 5V supply mode ................................................................................ 58
Table 20-5: Power dissipation ............................................................................................................... 59
Table 20-6: General timing parameters (TMC429 with EMI optimized output drivers) ......................... 59
25 Table of Contents
1 Features........................................................................................................................................... 1
2 TMC429 vs. TMC428 ....................................................................................................................... 3
3 General Description ....................................................................................................................... 3
3.1 Step Frequencies ...................................................................................................................... 5
3.2 Modes of Motion ........................................................................................................................ 5
3.3 Notation of Number Systems & Notation of Two to the Power of n .......................................... 6
3.4 Signal Polarities ......................................................................................................................... 6
3.5 Units of Motion Parameters ....................................................................................................... 6
3.6 ......................................................... 7
3.7 Tables of Contents .................................................................................................................... 7
4 Package Variants ............................................................................................................................ 7
5 Pinning ............................................................................................................................................ 7
6 Functional Description and Block Diagram ............................................................................... 10
7 Serial Peripheral Interfaces ......................................................................................................... 11
7.1 Automatic Power-On Reset ..................................................................................................... 11
7.2 Serial Peripheral Interface for µC ............................................................................................ 11
7.3 Serial Peripheral Interface to Stepper Motor Driver Chain ...................................................... 13
7.4 Datagram Structure ................................................................................................................. 14
7.5 Simple Datagram Examples ................................................................................................... 16
8 Address Space Partitions ............................................................................................................ 17
8.1 Read and Write ....................................................................................................................... 17
8.2 Register Set............................................................................................................................. 17
8.3 RAM Area ................................................................................................................................ 17
9 Register Description .................................................................................................................... 19