Datasheet

MOTOROLA MCF5206e USER’S MANUAL 14-1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
SECTION 14
TIMER MODULE
14.1 OVERVIEW OF THE TIMER MODULE
The MCF5206e contains two general-purpose16-bit timers. This section of the manual
documents how the 16-bit timers operate.
The output of an 8-bit prescaler clocks each 16-bit timer. The prescaler input can be the
system clock, the system clock divided by 16, or the timer input (TIN) pin. Figure 14-1 is a
block diagram of the timer module.
Both timer pins are multiplexed with the DMA request function. Their function is defined by
programming bits 8 and 9 of the PAR (Pin Assignment Register).
14.2 OVERVIEW OF KEY FEATURES
The general-purpose 16-bit timer unit has the following features:
• Maximum period of 5 seconds at 54 MHz & 6.7 seconds at 40 MHz.
• 18.5 ns resolution at 54 MHz & 25 ns at 40 MHz
• Programmable sources for the clock input, including external clock
• Input-capture capability with programmable trigger edge on input pin
• Output-compare with programmable mode for the output pin
• Free run and restart modes
• Maskable interrupts on input capture or reference-compare
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc...