Signal Description
PXN20 Microcontroller Reference Manual, Rev. 1
3-24 Freescale Semiconductor
3.4.3.8 PC8 — GPIO (PC[8]) / Analog Input (AN[40]) / FlexRay Debug 2
(FR_DBG[2])
PC[8] is a GPIO pin. AN[40] is a single-ended analog input pin. FR_DBG[2] is one of the FlexRay debug
output port pins.
3.4.3.9 PC9 — GPIO (PC[9]) / Analog Input (AN[41]) / FlexRay Debug 1
(FR_DBG[1])
PC[9] is a GPIO pin. AN[41] is a single-ended analog input pin. FR_DBG[1] is one of the FlexRay debug
output port pins.
3.4.3.10 PC10 — GPIO (PC[10]) / Analog Input (AN[42]) / FlexRay Debug 0
(FR_DBG[0])
PC[10] is a GPIO pin. AN[42] is a single-ended analog input pin. FR_DBG[0] is one of the FlexRay debug
output port pins.
3.4.3.11 PC11 — GPIO (PC[11]) / Analog Input (AN[43]) / I
2
C_C Serial Clock Line
(SCL_C)
PC[11] is a GPIO pin. AN[43] is a single-ended analog input pin. SCL_C is the serial clock signal for the
I
2
C_C module.
3.4.3.12 PC12 — GPIO (PC[12]) / Analog Input (AN[44]) / I
2
C_C Serial Data Line
(SDA_C)
PC[12] is a GPIO pin. AN[44] is a single-ended analog input pin. SDA_C is the serial data line for the
I
2
C_B module.
3.4.3.13 PC13 — GPIO (PC[13]) / Analog Input (AN[45]) / External Analog Mux
Address Output (MA[0])
PC[13] is a GPIO pin. AN[45] is a single-ended analog input pin. MA[0] is an address output for an
external analog multiplexer used to select the multiplexer input channel to connect to the ADC.
3.4.3.14 PC14 — GPIO (PC[14]) / Analog Input (AN[46]) / External Analog Mux
Address Output (MA[1])
PC[14] is a GPIO pin. AN[46] is a single-ended analog input pin. MA[1] is an address output for an
external analog multiplexer used to select the multiplexer input channel to connect to the ADC.
3.4.3.15 PC15 — GPIO (PC[15]) / Analog Input (AN[47]) / External Analog Mux
Address Output (MA[2])
PC[15] is a GPIO pin. AN[47] is a single-ended analog input pin. MA[2] is an address output for an
external analog multiplexer used to select the multiplexer input channel to connect to the ADC.
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