EVAL6470 Datasheet, PDF (3/11 Pages) STMicroelectronics – SPI with daisy-chain feature

EVAL6470
Board description
Table 1. EVAL6470: jumper and connector description
Name
Type
Function
J4
Power supply
Board power supply
J2
Power outputs
Bridge A outputs
J3
Power outputs
Bridge B outputs
J10
SPI connector
Master SPI connector
J11
SPI connector
Slave SPI connector
SW
NM test point
External switch connector
VS
Test point
Motor supply voltage
) ^VREG
t(s ^VDD
c _GND
du JP7
ro _JP2
P _JP5
te _JP3
ole ^JP4
Test point
Test point
Test point
Jumper
Jumper
Jumper
Jumper
Jumper
Internal 3 V regulator output
Logic interface voltage
Ground
Selects SPI connector PWM2 GPIO functionality
Daisy chain termination
EXT_VDD (SPI connector) to V_DD connection
V_DD to V_REG connection
Selects ADCIN source
Obs Table 2. EVAL6470: master SPI connector pinout (J10)
- _{Pin number}
Description
t(s) ¹
L6470 BUSY open drain output
c ₂
L6470 FLAG open drain output
du ₃
Ground
ro₄
EXT_VDD (can be used as external logic power supply)
te ^P5
SPI master in, slave out signal (connected to L6470 SDO output through
daisy chain termination jumper JP2)
le ₆
SPI serial clock signal (connected to L6470 CK input)
so ₇
SPI master out, slave in signal (connected to L6470 SDI input)
Ob ⁸
SPI slave select signal (connected to L6470 CS input)
9
PWM1 input
10
PWM2 input
Doc ID 018622 Rev 1
3/11