How to read PWM Signal without CCP timer.

Hello,
I am building the dotmatrix display, where I get the input through the 74hc165.
signals are A,B,C,D,E,F of 7segment and up & Down arrow.
the arrow input is sometime pulsating and some times continious.
when signal is pulsating the arrow must scrol when its continious the arrow must be standby, since I have used esternal capture pic of timer 2 for other pupose. my hardware is ready and i need to sense the Pulsating output with software code..
please help

I have used to timer 2 external pin for other purpose.

I want to differentiate the inputs of arrow between pulsating (7Khz) and continious, How please help

Which micro controller are you using ?.
Does it have any interrupt pins available ?.

Is the 7KHz signal a square wave ?.

One simple method is to connect the signal to a normal pin.
In the test routine note the level on the pin.
Wait for 80 micro seconds (for a square wave) or until it changes.
If the level changes in that time it must be pulsing.

I have to say, I don't understand why you are monitoring the display.