MC9S12HZ256 Datasheet, PDF (209/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

7.2 External Signal Description
This section lists all inputs to the ATD10B16C block.
Chapter 7 Analog-to-Digital Converter (ATD10B16CV4)
7.2.1 ANx (x = 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) — Analog Input
Channel x Pins
This pin serves as the analog input channel x. It can also be configured as general-purpose digital input
and/or external trigger for the ATD conversion.
7.2.2 ETRIG3, ETRIG2, ETRIG1, ETRIG0 — External Trigger Pins
These inputs can be configured to serve as an external trigger for the ATD conversion.
Refer to the Device Overview chapter for availability and connectivity of these inputs.
7.2.3 V_RH, V_RL — High Reference Voltage Pin, Low Reference Voltage Pin
V_RH is the high reference voltage, V_RL is the low reference voltage for ATD conversion.
7.2.4 V_DDA, V_SSA — Analog Circuitry Power Supply Pins
These pins are the power supplies for the analog circuitry of the ATD10B16C block.
7.3 Memory Map and Register Definition
This section provides a detailed description of all registers accessible in the ATD10B16C.
7.3.1 Module Memory Map
Table 7-1 gives an overview of all ATD10B16C registers
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
209