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MC9S12XD256CAG Datasheet, PDF (127/1348 Pages) Freescale Semiconductor, Inc – MC9S12XDP512 Data Sheet | |||
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Chapter 4 Analog-to-Digital Converter (ATD10B16CV4) Block Description
4.2 External Signal Description
This section lists all inputs to the ATD10B16C block.
4.2.1 ANx (x = 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) â Analog Input
Channel x Pins
This pin serves as the analog input channel x. It can also be conï¬gured as general-purpose digital input
and/or external trigger for the ATD conversion.
4.2.2 ETRIG3, ETRIG2, ETRIG1, ETRIG0 â External Trigger Pins
These inputs can be conï¬gured to serve as an external trigger for the ATD conversion.
Refer to the Device Overview chapter for availability and connectivity of these inputs.
4.2.3 VRH, VRL â High Reference Voltage Pin, Low Reference Voltage Pin
VRH is the high reference voltage, VRL is the low reference voltage for ATD conversion.
4.2.4 VDDA, VSSA â Analog Circuitry Power Supply Pins
These pins are the power supplies for the analog circuitry of the ATD10B16CV4 block.
4.3 Memory Map and Register Deï¬nition
This section provides a detailed description of all registers accessible in the ATD10B16C.
4.3.1 Module Memory Map
Table 4-1 gives an overview of all ATD10B16C registers
MC9S12XDP512 Data Sheet, Rev. 2.21
Freescale Semiconductor
127
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