Datasheet

EVAL6470H Board description
Doc ID 022736 Rev 2 3/11
Table 2. Jumpers and connectors description
Name Type Function
J1 Power supply Motor supply voltage
J5 Power output Bridge A outputs
J6 Power output Bridge B outputs
J2 SPI connector Master SPI
J3 SPI connector Slave SPI
J4 NM connector OSCIN and OSCOUT pins
J7 NM connector External switch input
TP1 (VS) Test point Motor supply voltage test point
TP4 (VDD) Test point Logic interface supply voltage test point
TP5 (VREG) Test point Logic supply voltage/L6470 internal regulator test point
TP6 (GND) Test point Ground test point
TP2 (STCK) Test point Step clock input test point
TP3 (STBY/RES) Test point Standby/reset input test point
TP7 (FLAG) Test point FLAG output test point
TP8 (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 L6470 SDO
output through 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
Table 4. Slave SPI connector pinout (J11)
Pin number Type Description
1 Open drain output L6470 BUSY/SYNC output
2 Open drain output L6470 FLAG output