AM1810_15 Datasheet, PDF (31/262 Pages) Texas Instruments – AM1810 ARM® Microprocessor For PROFIBUS

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AM1810
SPRS709D – NOVEMBER 2010 – REVISED MARCH 2014
3.7.9 Enhanced Capture/Auxiliary PWM Modules (eCAP0)
The eCAP Module pins function as either input captures or auxiliary PWM 32-bit outputs, depending upon
how the eCAP module is programmed.
Table 3-11. Enhanced Capture Module (eCAP) Terminal Functions
SIGNAL
NAME
TYPE ⁽¹⁾
NO.
PULL ⁽²⁾
POWER
GROUP ⁽³⁾
DESCRIPTION
eCAP0
AXR0 / ECAP0_APWM0 / GP8[7] / MII_TXD[0] / CLKS0
F3
I/O
CP[6]
A
enhanced capture 0 input or
auxiliary PWM 0 output
eCAP1
AXR8 / CLKS1 / ECAP1_APWM1 / GP0[0] / PRU0_R31[8] E4
I/O
CP[3]
A
enhanced capture 1 input or
auxiliary PWM 1 output
eCAP2
AXR15 / EPWM0TZ[0] / ECAP2_APWM2 / GP0[7]
A4
I/O
CP[1]
A
enhanced capture 2 input or
auxiliary PWM 2 output
(1) I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.
Note: The pin type shown refers to the input, output or high-impedance state of the pin function when configured as the signal name
highlighted in bold. All multiplexed signals may enter a high-impedance state when the configured function is input-only or the configured
function supports high-Z operation. All GPIO signals can be used as input or output. For multiplexed pins where functions have different
types (ie., input versus output), the table reflects the pin function direction for that particular peripheral.
(2) IPD = Internal Pulldown resistor; IPU = Internal Pullup resistor; CP[n] = configurable pull-up/pull-down (where n is the pin group) using
the PUPDENA and PUPDSEL registers in the System Module. The pull-up and pull-down control of these pins is not active until the
device is out of reset. During reset, all of the pins associated with these registers are pulled down. If the application requires a pull-up,
an external pull-up can be used. For more detailed information on pullup/pulldown resistors and situations where external
pullup/pulldown resistors are required, see the Device Configuration section. For electrical specifications on pullup and internal pulldown
circuits, see the Device Operating Conditions section.
(3) This signal is part of a dual-voltage IO group (A, B or C). These groups can be operated at 3.3V or 1.8V nominal. The three groups can
be operated at independent voltages but all pins withina group will operate at the same voltage. Group A operates at the voltage of
power supply DVDD3318_A. Group B operates at the voltage of power supply DVDD3318_B. Group C operates at the voltage of power
supply DVDD3318_C.
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