PIC24FJ64GA002-I/ML Microchip Technology, PIC24FJ64GA002-I/ML Datasheet - Page 3

• Manufacturer Part Number: PIC24FJ64GA002-I/ML
• Description: IC PIC MCU FLASH 21KX24 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ64GA002-I/ML

• Program Memory Type: FLASH
• Program Memory Size: 64KB (22K x 24)
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 32MHz
• Connectivity: I²C, PMP, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 8 KB
• Interface Type: I2C/IrDA/SPI/UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 5
• Operating Supply Voltage: 2 V to 3.6 V
• 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, PG164120, DM240011, DV164033, MA240013, AC164127, DM240002
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10-ch x 10-bit
• Controller Family/series: PIC24
• No. Of I/o's: 21
• Ram Memory Size: 8KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Embedded Interface Type: I2C, SPI, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM240011 - KIT STARTER MPLAB FOR PIC24F MCUAC162088 - HEADER MPLAB ICD2 24FJ64GA004 28AC164336 - MODULE SOCKET FOR PM3 28/44QFNDV164033 - KIT START EXPLORER 16 MPLAB ICD2
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

30.2
Figure 30-1:
30.3
© 2006 Microchip Technology Inc.
Section 30. Programmable Cyclic Redundancy Check (CRC)
CRC Registers
MODULE OVERVIEW
CRC REGISTERS
Simplified Block Diagram of the Programmable CRC Generator
The programmable CRC generator module in PIC24F devices can be broadly classified into two
parts: the control logic and the CRC engine. The control logic incorporates a register interface,
FIFO, interrupt generator and CRC engine interface. The CRC engine incorporates a CRC
calculator which is implemented using a serial shifter with XOR function. A simplified block
diagram is shown in Figure 30-1.
Different registers associated with the CRC module are described in detail in this section. These
registers are mapped onto the data RAM space as Special Function Registers (SFRs) in PIC24F
devices:
• CRCCON (CRC Control Register)
• CRCXOR (CRC XOR Register)
• CRCDAT (CRC Data Register)
• CRCWDAT (Write CRC Shift Register)
The CRCCON register (Register 30-1) is the primary control and status register for the module.
The CRCXOR register (Register 30-2) is used to define the generator polynomial by selecting
the terms to be used. The CRCDAT and CRCWDAT registers are buffers for data input and result
output, respectively.
Interrupt Generator
Control Logic
FIFO
Advance Information
Polynomial Coefficients
Polynomial Length
CRC Result Read
CRC Result Write
Serial Data Out
Shift Clock
Shifter and XOR
CRC Engine
CRC Engine Interface
DS39714A-page 30-3
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