EVAL6472H Datasheet, PDF (3/11 Pages) STMicroelectronics – SPI with daisy chain feature

EVAL6472H
Board description
Table 2. Jumpers and connectors 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
CN3
SPI connector
NM connector
Slave SPI
OSCIN and OSCOUT pins
CN4
NM connector
External switch input
TP1 (VS)
Test point
Motor supply voltage test point
TP2 (VDD)
TP3 (VREG)
Test point
Test point
Logic interface supply voltage test point
Logic supply voltage/L6470 internal regulator test
point
TP5 (GND)
TP6 (GND)
Test point
Test point
Ground 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.
Pin
number
1
2
3
4
5
6
7
8
9
10
Master SPI connector pinout (J10)
Type
Description
Open drain output
Open drain output
Ground
Supply
Digital output
Digital input
Digital input
Digital input
Digital input
Digital input
L6472 BUSY output
L6472 FLAG output
Ground
EXT_VDD (can be used as external logic power supply)
SPI master IN slave OUT signal (connected to L6472 SDO
output through daisy chain termination jumper JP2)
SPI serial clock signal (connected to L6472 CK input)
SPI master OUT slave IN signal (connected to L6472 SDI
input)
SPI slave select signal (connected to L6472 CS input)
L6472 step-clock input
L6472 standby/reset input
Doc ID 022980 Rev 1
3/11