TMC457_1 TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.], TMC457_1 Datasheet - Page 34

• Manufacturer Part Number: TMC457_1
• Description: S-profile motion controller with PID feedback control and high resolution micro stepping sequencer for stepper motors and piezo motors
• Manufacturer: TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.]

TMC457 DATASHEET (V. 1.16 / 2009-Nov-25)
10 Micro Controller Interface (SPI)
The communication between micro controller and TMC457 takes place via the four via serial interface,
the Serial Peripheral Interface (SPI
different vendors are equipped with SPI hardware.
Symbol
tSUCSC
tHDCSC
tSCKCL
tSCKCH
tSD
tSI
tDAMAGRAMuC Datagram Length
tDAMAGRAMuC Datagram Length
fCLK
tCLK
tPD
Table 4: Timing Characteristics of the Micro Controller Serial Peripheral Interface (SPI)
Copyright © 2009 TRINAMIC Motion Control GmbH & Co. KG
nSCS
SDO
SCK
CLK
SDI
Parameter
Setup Clocks for nSCS
Hold Clocks for nSCS
Serial Clock Low
Serial Clock High
SDO valid after SCK low
SDO valid after nSCS high
Clock Frequency
Clock Period tCLK = 1 / fCLK
CLK-rising-edge-to-Output Propagation Delay
tCLK
tSUCSC
Figure 8 : Timing Diagram of the Serial Micro Controller Interface
tHDCSC
tIS
tSCKCL
tSD
1 x SDI sampled
TM
sdi_bit#39
, SPI is trademark of Motorola). Many types of micro controllers of
tSCKCH
sdo_bit#39
tSD
tDATAGRAMuC
sdi_bit#38 . . . sdi_bit#1
one full 40 bit datagram
38 x sampled SDI
sdo_c_bit#38 ... sdo_c_bit#1
tPD
3+3 + 40*6 = 246
12.3
Min
2.5
50
3
3
3
3
0
tSD
1 x SDI sampled
sdi_bit#0
Typ
5
tHDCSC
sdo_c_bit#0
Max
3.5
4.5
20
tSUCSC
tSI
CLK periods
CLK periods
CLK periods
CLK periods
CLK periods
CLK periods
CLK periods
MHz
Unit
µs
ns
ns
34