Enhanced Queued Analog-to-Digital Converter (eQADC)MPC5566 Microcontroller Reference Manual, Rev. 2Freescale Semiconductor 19-7If the null message transmission is aborted, the eQADC completes the abort procedure beforehalting future command transfers from any CFIFO. The message of the CFIFO that caused theabort of the previous serial transmission is only transmitted after stop mode exits.• Command transfer is in progress.The eQADC completes the transfer and update CFIFO status before halting future commandtransfers from any CFIFO.Command transfers to the external device are considered completed when the serial transmissionof the command is completed. If valid data (conversion result or data read from an ADC register)is received at the end of a serial transmission, it is not sent to an RFIFO until stop mode exits. TheCFIFO status bits are still updated after the completion of the serial transmission, therefore, afterstop mode entry request is detected, the eQADC status bits stop changing several system clockcycles after the on-going serial transmission completes.If the command message transmission is aborted, the eQADC completes the abort procedure beforehalting future command transfers from any CFIFO. The message of the CFIFO that caused theabort of the previous serial transmission are transmitted only after stop mode exits.• Command/null message transfer through serial interface was aborted but next serial transmissiondid not start.If the stop mode entry request is detected between the time a previous serial transmission wasaborted and the start of the next transmission, the eQADC completes the abort procedure beforehalting future command transfers from any CFIFO. The message of the CFIFO that caused theabort of the previous serial transmission is transferred only after stop mode is exited.19.2 External Signal DescriptionThese signals are external to the eQADC module, but may or may not be physical pins. Refer to Chapter 2,“Signal Description” for a complete list of all physical pins and signals.Table 19-1. eQADC External SignalsFunction Description I/OTypeStatusDuringReset 1StatusAfterReset 2Type PackageAN[0]_DAN0+Single-ended analog input 0Positive terminal differential inputI I / — AN[0] / — Analog 496416AN[1]_DAN0-Single-ended analog input 1Negative terminal differential inputI I / — AN[1] / — Analog 496416AN[2]_DAN1+Single-ended analog input 2Positive terminal differential inputI I / — AN[2] / — Analog 496416AN[3]_DAN1-Single-ended analog input 3Negative terminal differential inputI I / — AN[3] / — Analog 496416AN[4]_DAN2+Single-ended analog input 4Positive terminal differential inputI I / — AN[4] / — Analog 496416AN[5]_DAN2-Single-ended analog input 5Negative terminal differential inputI I / — AN[5] / — Analog 496416
