参数资料
型号: L6460TR
厂商: STMICROELECTRONICS
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, PQFP64
封装: 10 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件页数: 28/139页
文件大小: 3837K
代理商: L6460TR
L6460
GPIO pins
Doc ID 17713 Rev 1
123/139
22.13
GPIO[12]
The GPIO[12] truth table is (for the abbreviation list please refer to Table 40.
Table 53.
GPIO[12] truth table
AUX2enable
or
AUX2syste
m (1)
1.
AUX2Enable or AUX2System bit =1 represent the case in which AUX2 is used as a regulator (system or
not system).
Op2En
PlusPin
GPIO[12] SPI bits
Function
Note
GpioOut
enable[12]
Mode[2]
Mode[1]
Mode[0]
1
X
RegLoop2
01
X
OpAmp2 in+
(2)
2.
When Op2EnPlusPin = ‘1’ the GpioOutEnable[11] bit is forced to 0.
0
X
HiZ (SPI_IN)
0
1
0
SPI OUT
(3)
3.
In all configurations in which GPIO[12] is enabled as output:
a) the GPIO[12] 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[12] 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[12] output is directly connected to StepCmd input for stepper driver and
therefore particular care must be taken in order to avoid wrong PWM signals when StepCmd is
selected for stepper driver (STEP_REQUEST function)
d) the GPIO[12] pin is a rail to rail, back to back output supplied by VGPIO_SPI.
0
1
0
1
Interrupt Ctrl
0
1
0
1
0
Comp2OUT
0
1
0
1
RegLoop2
0
1
0
Interrupt Ctrl inverted
0
1
0
1
Comp2OUT inverted
0
1
RegLoop2 inverted
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