PIC24HJ256GP610-I/PT Microchip Technology, PIC24HJ256GP610-I/PT Datasheet - Page 69

• Manufacturer Part Number: PIC24HJ256GP610-I/PT
• Description: IC PIC MCU FLASH 128KX16 100TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 24Hr

Specifications of PIC24HJ256GP610-I/PT

• Core Size: 16-Bit
• Program Memory Size: 256KB (85.5K x 24)
• Core Processor: PIC
• Speed: 40 MIPs
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 32x10b, 32x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFQFP
• Controller Family/series: PIC24
• No. Of I/o's: 85
• Ram Memory Size: 16KB
• Cpu Speed: 40MIPS
• No. Of Timers: 13
• No. Of Pwm Channels: 8
• Processor Series: PIC24HJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: CAN, I2C, SPI, UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 85
• Number Of Timers: 13
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 2 (12 bit, 32 Channel)
• A/d Bit Size: 12 bit
• A/d Channels Available: 32
• Height: 1 mm
• Length: 12 mm
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Width: 12 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARDAC164333 - MODULE SKT FOR PM3 100QFPDM300024 - KIT DEMO DSPICDEM 1.1MA240012 - MODULE PLUG-IN PIC24H 100QFPDV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

6.0
The PIC24H interrupt controller reduces the numerous
peripheral interrupt request signals to a single interrupt
request signal to the PIC24H CPU. It has the following
features:
• Up to 8 processor exceptions and software traps
• 7 user-selectable priority levels
• Interrupt Vector Table (IVT) with up to 118 vectors
• A unique vector for each interrupt or exception
• Fixed priority within a specified user priority level
• Alternate Interrupt Vector Table (AIVT) for debug
• Fixed interrupt entry and return latencies
6.1
The Interrupt Vector Table (IVT) is shown in Figure 6-1.
The IVT resides in program memory, starting at location
000004h. The IVT contains 126 vectors consisting of
8 nonmaskable trap vectors plus up to 118 sources of
interrupt. In general, each interrupt source has its own
vector. Each interrupt vector contains a 24-bit wide
address. The value programmed into each interrupt
vector location is the starting address of the associated
Interrupt Service Routine (ISR).
Interrupt vectors are prioritized in terms of their natural
priority; this priority is linked to their position in the
vector table. All other things being equal, lower
addresses have a higher natural priority. For example,
the interrupt associated with vector 0 will take priority
over interrupts at any other vector address.
PIC24H devices implement up to 61 unique interrupts
and 5 nonmaskable traps. These are summarized in
Table 6-1 and Table 6-2.
© 2006 Microchip Technology Inc.
Note:
source
support
INTERRUPT CONTROLLER
Interrupt Vector Table
This data sheet summarizes the features
of this group of PIC24H devices. It is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the “dsPIC30F
Family Reference Manual” (DS70046).
Preliminary
6.1.1
The Alternate Interrupt Vector Table (AIVT) is located
after the IVT, as shown in Figure 6-1. Access to the
AIVT
(INTCON2<15>). If the ALTIVT bit is set, all interrupt
and exception processes use the alternate vectors
instead of the default vectors. The alternate vectors are
organized in the same manner as the default vectors.
The AIVT supports debugging by providing a means to
switch between an application and a support environ-
ment without requiring the interrupt vectors to be
reprogrammed. This feature also enables switching
between applications for evaluation of different soft-
ware algorithms at run time. If the AIVT is not needed,
the AIVT should be programmed with the same
addresses used in the IVT.
6.2
A device Reset is not a true exception because the
interrupt controller is not involved in the Reset process.
The PIC24H device clears its registers in response to a
Reset which forces the PC to zero. The digital signal
controller then begins program execution at location
0x000000. The user programs a GOTO instruction at the
Reset address which redirects program execution to
the appropriate start-up routine.
Note:
is
Reset Sequence
provided
ALTERNATE VECTOR TABLE
Any unimplemented or unused vector
locations in the IVT and AIVT should be
programmed with the address of a default
interrupt handler routine that contains a
RESET instruction.
by
the
ALTIVT
PIC24H
DS70175C-page 67
control
bit