MA240017 Microchip Technology, MA240017 Datasheet - Page 103

• Manufacturer Part Number: MA240017
• Description: MODULE PLUG-IN PIC24F16KA102 PIM
• Manufacturer: Microchip Technology
• Series: PIC®r

Specifications of MA240017

• Accessory Type: Plug-In Module (PIM) - PIC24F16KA102
• Product: Microcontroller Modules
• Data Bus Width: 16 bit
• Core Processor: PIC24F16KA102
• Operating Supply Voltage: 3 V to 3.6 V
• Development Tools By Supplier: Integrated Development Environment, Assembler, ANSI C Compiler
• Processor Series: PIC24F
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC24
• Silicon Core Number: PIC24F
• Silicon Family Name: PIC24FxxKAxx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: Explorer 16 (DM240001 or DM240002)
• For Use With: DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

10.0
The PIC24F16KA102 family of devices provides the
ability to manage power consumption by selectively
managing clocking to the CPU and the peripherals. In
general, a lower clock frequency and a reduction in the
number of circuits being clocked constitutes lower
consumed power. All PIC24F devices manage power
consumption in four different ways:
• Clock frequency
• Instruction-based Sleep, Idle and Deep Sleep
• Software controlled Doze mode
• Selective peripheral control in software
Combinations of these methods can be used to
selectively tailor an application’s power consumption,
while still maintaining critical application features, such
as timing-sensitive communications.
10.1
PIC24F devices allow for a wide range of clock
frequencies to be selected under application control. If
the system clock configuration is not locked, users can
choose low-power or high-precision oscillators by simply
changing the NOSC bits. The process of changing a
system clock during operation, as well as limitations to
the process, are discussed in more detail in Section 8.0
“Oscillator Configuration”.
10.2
PIC24F devices have two special power-saving modes
that are entered through the execution of a special
PWRSAV instruction. Sleep mode stops clock operation
and halts all code execution; Idle mode halts the CPU
and code execution, but allows peripheral modules to
continue operation. Deep Sleep mode stops clock
operation, code execution and all peripherals except
RTCC and DSWDT. It also freezes I/O states and
removes power to SRAM and Flash memory.
EXAMPLE 10-1:
© 2009 Microchip Technology Inc.
PWRSAV
PWRSAV
BSET
PWRSAV
Note:
modes
POWER-SAVING FEATURES
Clock Frequency and Clock
Switching
Instruction-Based Power-Saving
Modes
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
“PIC24F
”Section 39. Power-Saving Features
with Deep Sleep” (DS39727).
#SLEEP_MODE
#IDLE_MODE
DSCON, #DSEN
#SLEEP_MODE
Family
PWRSAV
Reference
; Put the device into SLEEP mode
; Put the device into IDLE mode
; Enable Deep Sleep
; Put the device into Deep SLEEP mode
INSTRUCTION SYNTAX
Manual”,
Preliminary
PIC24F16KA102 FAMILY
The assembly syntax of the PWRSAV instruction is
shown in Example 10-1.
Sleep and Idle modes can be exited as a result of an
enabled interrupt, WDT time-out or a device Reset.
When the device exits these modes, it is said to
“wake-up”.
10.2.1
Sleep mode includes these features:
• The system clock source is shut down. If an
• The device current consumption will be reduced
• The I/O pin directions and states are frozen.
• The Fail-Safe Clock Monitor does not operate
• The LPRC clock will continue to run in Sleep
• The WDT, if enabled, is automatically cleared
• Some device features or peripherals may
The device will wake-up from Sleep mode on any of
these events:
• On any interrupt source that is individually
• On any form of device Reset
• On a WDT time-out
On wake-up from Sleep, the processor will restart with
the same clock source that was active when Sleep
mode was entered.
on-chip oscillator is used, it is turned off.
to a minimum provided that no I/O pin is sourcing
current.
during Sleep mode since the system clock source
is disabled.
mode if the WDT or RTCC with LPRC as clock
source is enabled.
prior to entering Sleep mode.
continue to operate in Sleep mode. This includes
items, such as the input change notification on the
I/O ports, or peripherals that use an external clock
input. Any peripheral that requires the system
clock source for its operation will be disabled in
Sleep mode.
enabled
Note:
SLEEP MODE
SLEEP_MODE and IDLE_MODE are con-
stants defined in the assembler include
file for the selected device.
DS39927B-page 101