Information

© 2007 Microchip Technology Inc. DS80060D-page 9
PIC16C505
4. Module: Reset (CLKIN/CLKOUT)
For the section titled “Reset”, additional information is
provided on OSC1/CLKIN and OSC2/CLKOUT pin
states during a MCLR.
Reset
When MCLR is asserted, the state of the OSC1/CLKIN
and CLKOUT/OSC2 pins are as follows:
CLKIN/CLKOUT PIN STATES WHEN MCLR
ASSERTED
Oscillator Mode OSC1/CLKIN Pin
OSC2/
CLKOUT Pin
EXTRC, CLKOUT on
OSC2
OSC1 pin is
tri-stated and
driven by external
circuit
OSC2 pin is
driven low
EXTRC, OSC2 is I/O OSC1 pin is
tri-stated and
driven by external
circuit
OSC2 pin is
tri-state input
INTRC, CLKOUT on
OSC2
OSC1 pin is
tri-state input
OSC2 pin is
driven low
INTRC, OSC2 is I/O OSC1 pin is
tri-state input
OSC2 pin is
tri-state input