參數(shù)資料
型號(hào)： L6460TR
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件頁(yè)數(shù)： 135/139頁(yè)
文件大?。?/td> 3837K
代理商： L6460TR
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L6460
GPIO pins
Doc ID 17713 Rev 1
95/139
22
GPIO pins
Some of the pins of L6460 are indicated as GPIO (General purpose I/O). These pins can be
configured to be used in different ways depending on customer application. All GPIOs can
be used as digital input/output pins with digital value settable/readable using serial interface
or as analog input pins that can be converted using the A2D system. Some of the pins can
be used for special purposes: i.e. two of them can be used to access to the pass switch
function, other two are used as feedback pins for the auxiliary synchronous switching
regulators.
All input Schmitt triggers and output circuitry used for start-up purposes are powered by the
internally generated V3v3, while the digital output buffers are powered by VGPIO_SPI pin. To
ensure independency between V3v3 and VGPIO_SPI the GPIOs output drivers are open-drain
driver or the high side MOS is in back-to-back configuration to avoid the presence of the
body diode between output and supply.
All digital output signals can be inverted before being provided on the relative GPIO pins.
Here below is reported the table with GPIO functions.
Table 39.
GPIO functions description
Pin
Name
Function(1)
Notes
Input
Output
Special
Analog
Digital
Analog
Digital
GPIO[0]
- ADC input
- SPI IN
- SPI OUT
- Interrupt ctrl.
- AuxPwm1
- AuxPwm2
Start-up
configuration
pin
Open drain
output
GPIO[1]
- ADC input
- Comp1 In-
- Vaux1 F.B.
- SPI IN
- SPI OUT
- Interrupt ctrl.
- AuxPwm1
- AuxPwm2
Open drain
output
GPIO[2]
- ADC input
- Comp2 In-
- Vaux2 F.B.
- SPI IN
- IN PWM
- SPI OUT
- Interrupt ctrl.
- AuxPwm2
- AuxPwm3
Open drain
output
GPIO[3]
- ADC input
- SPI IN
- SPI OUT
- AuxPwm2
- AuxGpPwm3
Start-up
configuration
pin
Open drain
output
GPIO[4]
- ADC input
- SPI IN
- SPI OUT
- Interrupt ctrl.
- AuxPwm1
- AuxPwm3
Start-up
configuration
pin
Open drain
output
GPIO[5]
- ADC input
- SPI IN
- SPI OUT
- Reg. loop 1
- Comp1 out
- AuxPwm3
Slave Control
Full driver BB
powered by
V3v3
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