PXR40RM Datasheet, PDF (112/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Signal Descriptions
3.3.4 eQADC Signals
Table 3-8. eQADC Signals
Signal Name
ANA0–ANA23
AN24–AN39
ANB0–ANB23
VRH_A
VRL_A
VRH_B
VRL_B
REFBYPCB
REFBYPCA
VDDA_A0
VDDA_A1
REFBYPCA1
VSSA_A1
VDDA_B0
VDDA_B1
VSSA_B0
REFBYPCB1
Description
ANA[n] is an analog input to eQADC_A’s converter pair.
AN[n] is an analog input that goes to both eQADC’s converter pairs.
ANB[n] is an analog input to eQADC_B’s converter pair.
V_RHA is the voltage reference high input pin for the eQADC_A.
V_RLA is the voltage reference low input pin for the eQADC_A.
V_RHB is the voltage reference high input pin for the eQADC_B.
V_RLB is the voltage reference low input pin for the eQADC_B.
REFBYPCB is a bypass capacitor input for the eQADC_B. The REFBYPCB pin is used to
connect an external bias capacitor between the REFBYPCB pin and V_RLB. The value of
this capacitor must be 100nF. This bypass capacitor is used to provide a stable reference
voltage for the ADC.
REFBYPCA is a bypass capacitor input for the eQADC_A. The REFBYPCA pin is used to
connect an external bias capacitor between the REFBYPCA pin and V_RLA. The value of
this capacitor must be 100nF. This bypass capacitor is used to provide a stable reference
voltage for the ADC.
V_DDAn is the analog supply input pin for the eQADC_A.
V_DDAn is the analog supply input pin for the eQADC_A.
REFBYPCA1 is a bypass capacitor input for the eQADC_A. The REFBYPCA1 pin is used
to connect an external bias capacitor providing a stable reference voltage for the ADC.
V_SSAn is the analog ground reference input pin for the eQADC_A.
V_DDAn is the analog supply input pin for the eQADC_B.
V_DDAn is the analog supply input pin for the eQADC_B.
V_SSAn is the analog ground reference input pin for the eQADC_B.
REFBYPCB1 is a bypass capacitor input for the eQADC_B. The REFBYPCB1 pin is used
to connect an external bias capacitor providing a stable reference voltage for the ADC.
3.3.5 FlexRay Signals
Table 3-9. FlexRay Signals
Signal Name
FR_A_TX_GPIO248
FR_A_RX_GPIO249
FR_A_TX_EN_GPIO250
FR_B_TX_GPIO251
FR_B_RX_GPIO252
FR_B_TX_EN_GPIO253
Description
FlexRay Channel A transmit pin.
FlexRay Channel A receive pin.
FlexRay Channel A transmit enable pin.
FlexRay Channel B transmit pin.
FlexRay Channel B receive pin.
FlexRay Channel B transmit enable pin.
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PXR40 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor