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
101/139
22.2 GPIO[1]
).
Table 42.
GPIO[1] truth table
AUX1Enable
or
AUX1System
GPIO[1] SPI BITS
Function
Note
GpioOut
Enable [1]
Mode[2]
Mode[1]
Mode[0]
1
X
X
X
X
AUX1 FB
(1)
1.
AUX1Enable or AUX1System bit =1 represent the case in which AUX1 is used as a system or not system
regulator.
regulator.
0
0
0
X
X
HiZ (SPI_IN)
0
0
1
X
X
Comp1 IN -
(2)
2.
In all configurations in which GPIO[1] is enabled as output:
a) the GPIO[1] 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[1] 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[1] pin is an open drain output.
0
1
0
0
0
SPI OUT
0
1
0
0
1
AuxPwm1
0
1
0
1
0
AuxPwm2
0
1
0
1
1
InterruptCtrl
0
1
1
0
0
SPI OUT inverted
0
1
1
0
1
AuxPwm1 inverted
0
1
1
1
0
AuxPwm2inverted
0
1
1
1
1
IntCtrlinverted