3 qadc analog input (an2/any), 4 qadc analog input (an3/anz), 5 qadc analog input (an52/ma0) – Motorola ColdFire MCF5281 User Manual

Page 269: 6 qadc analog input (an53/ma1), 7 qadc analog input (an55/trig1), 8 qadc analog input (an56/trig2), 14 debug support signals, 1 jtag_en, 14debug support signals -29, 1 jtag_en -29

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Signal Descriptions

Freescale Semiconductor

14-29

14.2.13.3 QADC Analog Input (AN2/ANY)

This PQB signal is the direct analog input AN2. When using external multiplexing this pin can also be
configured as multiplexed input ANY.

This pin can also be configured as GPIO PQB2.

14.2.13.4 QADC Analog Input (AN3/ANZ)

This PQB signal is the direct analog input AN3. When using external multiplexing this pin can also be
configured as multiplexed input ANZ.

This pin can also be configured as GPIO PQB3.

14.2.13.5 QADC Analog Input (AN52/MA0)

This PQA signal is the direct analog input AN52. When using external multiplexing this pin can also be
configured as an output signal, MA0, to select the output of the external multiplexer.

This pin can also be configured as GPIO PQA0.

14.2.13.6 QADC Analog Input (AN53/MA1)

This PQA signal is the direct analog input AN53. When using external multiplexing this pin can also be
configured as an output signal, MA1, to select the output of the external multiplexer.

This pin can also be configured as GPIO PQA1.

14.2.13.7 QADC Analog Input (AN55/TRIG1)

This PQA signal is the direct analog input AN55. This pin can also be configured as an input signal,
TRIG1, to trigger the execution of one of the two queues.

This pin can also be configured as GPIO PQA3.

14.2.13.8 QADC Analog Input (AN56/TRIG2)

This PQA signal is the direct analog input AN56. This pin can also be configured as an input signal,
TRIG2, to trigger the execution of one of the two queues.

This pin can also be configured as GPIO PQA4.

14.2.14 Debug Support Signals

These signals are used as the interface to the on-chip JTAG controller and also to interface to the BDM
logic.

14.2.14.1 JTAG_EN

This input signal is used to select between multiplexed debug module and JTAG signals at reset. If
JTAG_EN is low, the part is in normal and background debug mode (BDM); if it is high, it is in normal
and JTAG mode.

MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3

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