External Multiplexing Configuration - Motorola ColdFire MCF5281 User Manual

Motorola microcontroller user's manual
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AN0
AN2
AN4
AN6
AN1
AN3
AN5
AN7
AN16
AN18
AN20
AN22
AN17
AN19
AN21
AN23
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
MOTOROLA
MUX
MUX
MUX
MUX
Chapter 27. Queued Analog-to-Digital Converter (QADC)
AN0/ANW/PQB0
AN1/ANX/PQB1
AN2/ANY/PQB2
AN3/ANZ/PQB3
AN52/MA0/PQA0
AN53/MA1/PQA1
AN55/ETRIG1PQA3
AN56/ETRIG2/PQA4
Functional Description
27-33

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