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
119/139
22.11 GPIO[10]
The GPIO[10] truth table is (for the abbreviation list please refer to
Table 51.
GPIO[10] truth table
Op1EnPlusPin
(1)
1.
The Op1EnMinusPin bit in the OpAmp1Ctrl register enables the connection of the positive input of Op1 to
GPIO[10] pin.
GPIO[10] pin.
GPIO[10] SPI bits
Function
(2)
2.
The GPIO[10] pin is used by the system when firmware requires the ID read action (
)
Note
GpioOut
enable[10]
Mode[2]
Mode[1]
Mode[0]
1
X
X
X
X
OpAmp1 in-
(3)
3.
When Op1EnPlusPin = ‘1’ the GpioOutEnable[10] bit is forced to 0.
0
0
X
X
X
HiZ (SPI_IN)
0
1
0
0
0
SPI OUT
(4)
4.
In all configurations in which GPIO[10] is enabled as output:
a) the GPIO[10] 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[10] pin can be always used as a digital input so its value can be always read through SPI
interface (SPI_IN function);
c)
please note that GPIO[10] output is directly connected to ExtPWM2 input for bridge 1 or 2 and
therefore particular care must be taken in order to avoid wrong PWM signals when ExtPWM2 is
selected for bridge 1 or 2;
therefore particular care must be taken in order to avoid wrong PWM signals when ExtPWM2 is
selected for bridge 1 or 2;
d) the GPIO[10] 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
Interrupt Ctrl inverted
0
1
1
0
1
AuxPwm2 inverted
0
1
0
0
0
AuxPwm3 inverted