PIC24HJ32GP202-E/MM Microchip Technology, PIC24HJ32GP202-E/MM Datasheet - Page 99

• Manufacturer Part Number: PIC24HJ32GP202-E/MM
• Description: 16-bit MCU, 32KB Flash,40 MIPS,nanoWatt 28 QFN-S 6x6mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 24Hr

Specifications of PIC24HJ32GP202-E/MM

• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (11K x 24)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.0
The PIC24HJ32GP202/204 and PIC24HJ16GP304
devices provide 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.
PIC24HJ32GP202/204
devices can manage power consumption in four
different ways:
• Clock frequency
• Instruction-based Sleep and Idle modes
• Software-controlled Doze mode
• Selective peripheral control in software
Combinations of the above methods can be used to
selectively
consumption while still maintaining critical application
features, such as timing-sensitive communications.
9.1
PIC24HJ32GP202/204 and PIC24HJ16GP304 devices
allow 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 (OSCCON<10:8>). The
process of changing a system clock during operation,
as well as limitations to the process, are discussed in
more
Configuration”.
EXAMPLE 9-1:
© 2011 Microchip Technology Inc.
PWRSAV #SLEEP_MODE
PWRSAV #IDLE_MODE
Note 1: This data sheet summarizes the features
2: Some registers and associated bits
POWER-SAVING FEATURES
Clock Frequency and Clock
Switching
detail
PIC24HJ32GP202/204 AND PIC24HJ16GP304
of
PIC24HJ16GP304 family of devices.
However, it is not intended to be a com-
prehensive reference source. To comple-
ment the information in this data sheet,
refer to “Section 9. Watchdog Timer
and Power Savings Modes” (DS70196)
of the “dsPIC33F/PIC24H Family Refer-
ence Manual”, which is available from the
Microchip website (www.microchip.com).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
customize
the
in
PWRSAV INSTRUCTION SYNTAX
PIC24HJ32GP202/204
Section 8.0
an
and
; Put the device into Sleep mode
; Put the device into Idle mode
application’s
PIC24HJ16GP304
“Oscillator
power
and
in
9.2
PIC24HJ32GP202/204 and PIC24HJ16GP304 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.
the PWRSAV instruction.
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.
9.2.1
In the Sleep mode:
• The system clock source is shut down. If an
• The device current consumption is reduced to a
• The Fail-Safe Clock Monitor does not operate,
• The LPRC clock continues to run if the WDT is
• The WDT, if enabled, is automatically cleared
• Some device features or peripherals may continue
• Any peripheral that requires the system clock
The device will wake-up from Sleep mode on any of
these events:
• Any interrupt source that is individually enabled
• Any form of device Reset
• A WDT time-out
On wake-up from Sleep mode, the processor restarts
with the same clock source that was active when Sleep
mode was entered.
on-chip oscillator is used, it is turned off.
minimum, provided that no I/O pin is sourcing
current.
since the system clock source is disabled.
enabled.
prior to entering Sleep mode.
to operate. This includes items such as the input
change notification on the I/O ports, or peripherals
that use an external clock input.
source for its operation is disabled.
Note:
Instruction-Based Power-Saving
Modes
Example 9-1
SLEEP MODE
SLEEP_MODE
constants defined in the assembler
include file for the selected device.
shows the Assembler syntax of
and
IDLE_MODE
DS70289G-page 99
are