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 VRH Reference voltage high and low inputs. I
VRL I
Analog Supply VDDA Isolate the ADC circuitry from power supply noise
VSSA

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