STMicroelectronics FlexSPIN: SPI configurable stepper and DC multi motor driver evaluation board EVAL6460 EVAL6460 Data Sheet
Product codes
EVAL6460
L6460
GPIO pins
Doc ID 17713 Rev 1
107/139
22.5 GPIO[4]
).
Table 45.
GPIO[4] truth table
State at
StartUp
StartUp
GPIO[4] SPI BITS
Function
Note
GpioOut
Enable [4]
Mode[2]
Mode[1]
Mode[0]
1
X
X
X
X
Detection of StartUp config
See
0
0
X
X
X
HiZ (SPI_IN)
0
1
0
0
0
SPI OUT
(1)
1.
In all configurations in which GPIO[4] is enabled as output:
a) the GPIO[4] pin can be always used as an analog input to the ADC system (ADC function) by writing its
address in the A2DChannelX[4:0] in the A2DConfigX register and starting a conversion;
b) the GPIO[4] pin can be always used as a digital input so its value can be always read through SPI
interface (SPI_IN function);
c)
the GPIO[4] pin is an open drain output.
0
1
0
0
1
Interrupt Ctrl
0
1
0
1
0
AuxPwm1
0
1
0
1
1
AuxPwm3
0
1
1
0
0
SPI OUT inverted
0
1
1
0
1
Interrupt Ctrl
0
1
1
1
0
AuxPwm1 inverted
0
1
1
1
1
AuxPwm3 inverted