Datasheet

Table Of Contents
2011-2013 Microchip Technology Inc. DS40001609C-page 43
PIC16(L)F1508/9
bit 2-0 FOSC<2:0>: Oscillator Selection bits
111 = ECH:External clock, High-Power mode: on CLKIN pin
110 = ECM: External clock, Medium-Power mode: on CLKIN pin
101 = ECL: External clock, Low-Power mode: on CLKIN pin
100 = INTOSC oscillator: I/O function on CLKIN pin
011 = EXTRC oscillator: External RC circuit connected to CLKIN pin
010 = HS oscillator: High-speed crystal/resonator connected between OSC1 and OSC2 pins
001 = XT oscillator: Crystal/resonator connected between OSC1 and OSC2 pins
000 = LP oscillator: Low-power crystal connected between OSC1 and OSC2 pins
Note 1: When FSCM is enabled, Two-Speed Start-up will be automatically enabled, regardless of the IESO bit value.
2: Enabling Brown-out Reset does not automatically enable Power-up Timer.
3: Once enabled, code-protect can only be disabled by bulk erasing the device.
REGISTER 4-1: CONFIG1: CONFIGURATION WORD 1 (CONTINUED)