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L6460 Datasheet(PDF) 115 Page - STMicroelectronics

Part # L6460
Description  SPI configurable stepper and DC multi motor driver
PDF  139 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6460 Datasheet(HTML) 115 Page - STMicroelectronics

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L6460
GPIO pins
Doc ID 17713 Rev 1
115/139
22.9
GPIO[8]
The GPIO[8] truth table is (for the abbreviation list please refer to Table 40).
Table 49.
GPIO[8] truth table
EnDac (1)
1.
The EnDAC bit in the CurrDacCtrl register enables the Current DAC (seeChapter 17)
GPIO[8] SPI bits
Function (2)
2.
This pin is 5 volt input tolerant.
Note
GpioOut
enable[8]
Mode[2]
Mode[1]
Mode[0]
1
X
X
X
X
CurrDAC
(3)
3.
When EnDAC = ‘1’ the GpioOutEnable[8] bit is forced to 0. The current DAC circuit is directly connected to
GPIO[8] pin so as soon as it is enabled it will sink current from pin.
0
0
X
X
X
HiZ (SPI_IN)
(4)
4.
The GPIO[8] pin can be always used as a digital input so its value can be always read through SPI
interface (SPI_IN function). To avoid affecting the precision of CurrDAC when this is used to sink very low
currents, it is necessary to enable the digital input functionality of GPIO[8]. Therefore to read their values
through SPI interface (SPI_IN function), it is necessary to enable the EnGpio8DigIn bit in the CurrDacCtrl
register.
0
1
000
SPI OUT
(4)
0
1
001
AuxPwm1
(4)
0
1
010
AuxPwm3
(4)
0
1
011
Comp2OUT
(4)
0
1
100
AuxPwm1
inverted
(4)
0
1
101
AuxPwm3
inverted
(4)
0
1
1
1
1
Comp2OUT inverted
(4)



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