Microcontroller User's Manual

MOTOROLA Chapter 27. Queued Analog-to-Digital Converter (QADC) 27-33

Functional Description

Figure 27-18. External Multiplexing Configuration

When externally multiplexed mode is selected, the QADC automatically drives the MA

output signals from the channel number in each CCW. The QADC also converts the proper

input channel (ANW, ANX, ANY, and ANZ) by interpreting the CCW channel number. As

a result, up to 16 externally multiplexed channels appear to the conversion queues as

AN52/MA0/PQA0

AN53/MA1/PQA1

AN55/ETRIG1PQA3

AN56/ETRIG2/PQA4

AN0/ANW/PQB0

AN1/ANX/PQB1

AN2/ANY/PQB2

AN3/ANZ/PQB3

Port QBPort QA

AN0

AN2

AN4

AN6

AN1

AN3

AN5

AN7

AN16

AN18

AN20

AN22

AN17

AN19

AN21

AN23

MUX