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
127/139
22.15 GPIO[14]
The GPIO[14] truth table is (for the abbreviation list please refer to
Table 55.
GPIO[14] truth table
EnOp2
(1)
1.
The EnOp2 bit in the OpAmp2Ctrl register enables the operational amplifier 2.
GPIO[14] SPI bits
Function
Note
GpioOut
enable[14]
Mode[2]
Mode[1]
Mode[0]
1
X
X
X
X
OpAmp2 Out
(2)
2.
When EnOp2 = ‘1’ the GpioOutEnable[14] bit is forced to 0.
0
0
X
X
X
HiZ (SPI_IN)
0
1
0
0
0
SPI OUT
(3)
3.
In all configurations in which GPIO[14] is enabled as output:
a) the GPIO[14] 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[14] 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[14] pin is a rail to rail output supplied by V
GPIO_SPI.
0
1
0
0
1
Interrupt Ctrl
0
1
0
1
0
AuxPwm2
0
1
0
1
1
AuxPwm3
0
1
1
0
0
SPI OUT inverted
0
1
1
0
1
Interrupt Ctrl inverted
0
1
1
1
0
AuxPwm2 inverted
0
1
1
1
1
AuxPwm3 inverted