Datasheet

EVAL6470PD Board description
Doc ID 022606 Rev 2 3/12
Table 2. Jumper and connector description
Name Type Function
M1 Power supply Motor supply voltage
M2 Power output Bridge A outputs
M3 Power output Bridge B outputs
CN1 SPI connector Master SPI
CN2 SPI connector Slave SPI
CN3 NM connector OSCIN and OSCOUT pins
CN4 NM connector External switch input
TP1 (VS) Test point Motor supply voltage test point
TP2 (VDD) Test point Logic interface supply voltage test point
TP3 (VREG) Test point Logic supply voltage/L6470 internal regulator test point
TP5 (GND) Test point Ground test point
TP6 (GND) Test point Ground test point
TP8 (STCK) Test point Step clock input test point
TP9 (STBY/RES) Test point Standby/reset input test point
TP10 (FLAG) Test point FLAG output test point
TP11 (BUSY/SYNC) Test point BUSY/SYNC output test point
Table 3. Master SPI connector pinout (J10)
Pin number Type Description
1 Open drain output L6470 BUSY/SYNC output
2 Open drain output L6470 FLAG output
3 Ground Ground
4 Supply EXT_VDD (can be used as external logic power supply)
5 Digital output
SPI master IN slave OUT signal (connected to the L6470 SDO
output through the daisy-chain termination jumper JP2)
6 Digital input SPI serial clock signal (connected to L6470 CK input)
7 Digital input
SPI master OUT slave IN signal (connected to L6470 SDI
input)
8 Digital input SPI slave select signal (connected to L6470 CS input)
9 Digital input L6470 step-clock input
10 Digital input L6470 STBY/RST input