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What is the basic difference between Latches and Flip flops?
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Answer Posted / ayssar serhan
• LAT: (LATCH): This register is used to set output
values. Anything you want output on related pins must be
put on this.
Example
LATB=0xFF; //All PINs becomes high
LATB=0x00; //All pins becomes Low
LATB=0x03; //0000-0011 BIT 0 and 1 becomes high.
• PORT: This is used to get input from the PORTs.
Reading its value gives the actual levels applied on the
PINs. It must be noted that PORT is first configured as
input using the TRIS register. Suppose you connected a
switch as shown above on PORTB-0 then if you read PORTB it
will be 0000-0000 if switch is pressed and 0000-0001 if
switch is released.
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