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Author Topic: PIC18F2455, Pins 9 and 10? Input/Output?  (Read 628 times)
EvanVanVan
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« on: February 11, 2010, 07:54:35 PM »

From the data sheet i got:

Quote
Pin NamePin Number
PDIP,SOIC
Pin TypeBuffer TypeDescription
OSC1/CLKI
OSC1
CLKI
9I
I
Analog
Analog
Oscillator crystal or external clock input.
Oscillator crystal input or external clock source input.
External clock source input. Always associated with pin
function OSC1. (See OSC2/CLKO pin.)
OSC2/CLKO/RA6
OSC2
CLKO
RA6
10O
O
I/O


TTL
Oscillator crystal or clock output.
Oscillator crystal output. Connects to crystal or resonator in
Crystal Oscillator mode.
In select modes, OSC2 pin outputs CLKO which has 1/4 the
frequency of OSC1 and denotes the instruction cycle rate.
General purpose I/O pin.


Having read that, the language is confusing me a little, when it says "OSC1(pin 9): Oscillator crystal input" does that mean i should line it up with the input side of the oscillator crystal? or should i line it up with the output side of the oscillator crystal so the electrical signals outputting from the oscillator are being "input"ted into pin 9?
« Last Edit: February 11, 2010, 07:57:04 PM by EvanVanVan » Logged
ReverseAffect
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« Reply #1 on: February 11, 2010, 10:55:34 PM »

it's all right here...see where 9 and 10 pins are....
http://www.xboxhacker.org/index.php?topic=12306.msg101565#msg101565
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EvanVanVan
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« Reply #2 on: February 11, 2010, 11:58:57 PM »

i saw that, but i was asking about the orientation of the crystal oscillator? I don't want to reverse the 2(input and output) pins of the oscillator
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« Reply #3 on: February 12, 2010, 12:01:24 AM »

i saw that, but i was asking about the orientation of the crystal oscillator? I don't want to reverse the 2(input and output) pins of the oscillator
there no + or - for it......silly...you'll be fine...same with the caps for it...
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