12 adc signals, 13 general purpose timer signals, 14 pulse-width modulator signals – Freescale Semiconductor ColdFire MCF52210 User Manual

Page 41: 15 debug support signals

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Signal Descriptions

MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2

Freescale Semiconductor

2-11

2.12 ADC Signals

Table 2-11

describes the signals of the analog-to-digital converter.

2.13 General Purpose Timer Signals

Table 2-12

describes the general purpose timer signals.

2.14 Pulse-Width Modulator Signals

Table 2-13

describes the PWM signals.

2.15 Debug Support Signals

The signals in

Table 2-14

are used as the interface to the on-chip JTAG controller and also to interface to

the BDM logic.

Table 2-11. ADC Signals

Signal Name

Abbreviation

Function

I/O

Analog Inputs

AN[7:0]

Inputs to the ADC.

I

Analog Reference

V

RH

Reference voltage high and low inputs.

I

V

RL

I

Analog Supply

V

DDA

Isolate the ADC circuitry from power supply noise

V

SSA

Table 2-12. GPT Signals

Signal Name

Abbreviation

Function

I/O

General Purpose Timer
Input/Output

GPT[3:0]

Inputs to or outputs from the general purpose timer module

I/O

Table 2-13. PWM Signals

Signal Name

Abbreviation

Function

I/O

PWM Output Channels

PWM[7:0]

Pulse-width modulated output for PWM channels

O

Table 2-14. Debug Support Signals

Signal Name

Abbreviation

Function

I/O

JTAG Enable

JTAG_EN

Select between debug module and JTAG signals at reset

I

Test Reset

TRST

This active-low signal is used to initialize the JTAG logic
asynchronously.

I

Test Clock

TCLK

Used to synchronize the JTAG logic.

I

Test Mode Select

TMS

Used to sequence the JTAG state machine. TMS is sampled on the
rising edge of TCLK.

I

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