MA160014 Microchip Technology, MA160014 Datasheet - Page 27

• Manufacturer Part Number: MA160014
• Description: MOD PLUG-IN 44PIN PIC18LF45K22
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of MA160014

• Accessory Type: Plug-In Module (PIM) - PIC18LF45K10
• Product: Microcontroller Modules
• Data Bus Width: 8 bit
• Core Processor: PIC18LF45K22
• Interface Type: I2C, SPI
• Operating Supply Voltage: 1.8 V to 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PICDEM PIC18 Explorer, DM183032
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.0
2.1
The oscillator module has a wide variety of clock
sources and selection features that allow it to be used
in a wide range of applications while maximizing perfor-
mance and minimizing power consumption.
illustrates a block diagram of the oscillator module.
Clock sources can be configured from external
oscillators, quartz crystal resonators, ceramic resonators
and Resistor-Capacitor (RC) circuits. In addition, the
system clock source can be configured from one of three
internal oscillators, with a choice of speeds selectable via
software. Additional clock features include:
• Selectable system clock source between external
• Two-Speed Start-up mode, which minimizes
• Fail-Safe Clock Monitor (FSCM) designed to
• Oscillator Start-up Timer (OST) ensures stability
The primary clock module can be configured to provide
one of six clock sources as the primary clock.
1.
2.
3.
4.
5.
6.
The HS and EC oscillator circuits can be optimized for
power consumption and oscillator speed using settings
in FOSC<3:0>. Additional FOSC<3:0> selections
enable RA6 to be used as I/O or CLKO (F
RC, EC and INTOSC Oscillator modes.
Primary
FOSC<3:0> bits of the CONFIG1H Configuration
register. The primary clock operation is further defined
by these Configuration and register bits:
1.
2.
3.
4.
5.
6.
7.
8.
 2010 Microchip Technology Inc.
or internal sources via software.
latency between external oscillator start-up and
code execution.
detect a failure of the external clock source (LP,
XT, HS, EC or RC modes) and switch
automatically to the internal oscillator.
of crystal oscillator sources.
RC
LP
XT
INTOSC
HS
EC
PRICLKEN (CONFIG1H<5>)
PRISD (OSCCON2<2>)
PLLCFG (CONFIG1H<4>)
PLLEN (OSCTUNE<6>)
HFOFST (CONFIG3H<3>)
IRCF<2:0> (OSCCON<6:4>)
MFIOSEL (OSCCON2<4>)
INTSRC (OSCTUNE<7>)
OSCILLATOR MODULE (WITH
FAIL-SAFE CLOCK MONITOR)
Overview
Clock
External Resistor/Capacitor
Crystal/Resonator
High-Speed Crystal/Resonator
External Clock
Low-Power Crystal
Internal Oscillator
modes
are
selectable
Figure 2-1
OSC
by
/4) for
Preliminary
the
The HFINTOSC, MFINTOSC and LFINTOSC are
factory calibrated high, medium and low-frequency
oscillators, respectively, which are used as the internal
clock sources.
PIC18(L)F2X/4XK22
DS41412D-page 27