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Issue: Documentation Error

Discussion in 'Windows Vista' started by STAN STARINSKI, Sep 30, 2009.

  1. BUG REPORT:

    Microchip Technology Inc.
    Page 23 of "PIC18F2420/2520/4420/4520 Datasheet" (edition "DS39631E") says
    wrong things versus correct information in Help File. Here's the wrong info:

    6. RCIO External Resistor/Capacitor with I/O
    on RA6
    7. INTIO1 Internal Oscillator with FOSC/4 Output
    on RA6 and I/O on RA7
    8. INTIO2 Internal Oscillator with I/O on RA6
    and RA7
    10. ECIO External Clock with I/O on RA6

    But the correct information in Help File says:
    OSC = ECIO6 EC oscillator, port function on RA6
    OSC = RCIO6 External RC oscillator, port function on RA6
    OSC = INTIO67 Internal oscillator block, port function on RA6 and RA7
    OSC = INTIO7 Internal oscillator block, CLKO function on RA6, port function
    on RA7

    Or maybe Datasheet is correct but helpfile is not. Please fix this.
    I used configuration bits as per Help File & they worked.
    Also when i search datasheet PDF document for things like "INTIO67" it
    doesn't even have 1 reference to it!
    Then I discovered that datasheet shows exactly same settings codes as for
    obsolete, older PIC18F1220

    Looks like someone at Microchip FORGOT to update datasheet to reflect
    correct settins for newer PIC18F4420 or (2420, 2520).
    Now back to removing coffee enema.
     

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