PIC24HJ16GP304-I/PT Microchip Technology, PIC24HJ16GP304-I/PT Datasheet - Page 48

• Manufacturer Part Number: PIC24HJ16GP304-I/PT
• Description: IC PIC MCU FLASH 16K 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 24Hr

Specifications of PIC24HJ16GP304-I/PT

• Core Size: 16-Bit
• Program Memory Size: 16KB (5.5K x 24)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Number Of I /o: 35
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 13x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC24
• No. Of I/o's: 35
• Ram Memory Size: 2KB
• Cpu Speed: 40MIPS
• No. Of Timers: 4
• Processor Series: PIC24HJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 35
• Number Of Timers: 3
• 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, DM240001
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 13 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARDDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC24HJ32GP202/204 and PIC24HJ16GP304
5.2
The PIC24HJ32GP202/204 and PIC24HJ16GP304
Flash program memory array is organized into rows of
64 instructions or 192 bytes. RTSP allows the user
application to erase a page of memory, which consists
of eight rows (512 instructions) at a time, and to
program one row or one word at a time. The 8-row
erase pages and single row write rows are
edge-aligned from the beginning of program memory,
on boundaries of 1536 bytes and 192 bytes,
respectively.
The program memory implements holding buffers that
can contain 64 instructions of programming data. Prior
to the actual programming operation, the write data
must be loaded into the buffers sequentially. The
instruction words loaded must always be from a group
of 64 boundary.
The basic sequence for RTSP programming is to set up
a Table Pointer, then do a series of TBLWT instructions
to load the buffers. Programming is performed by
setting the control bits in the NVMCON register. A total
of 64 TBLWTL and TBLWTH instructions are required
to load the instructions.
All table write operations are single-word writes (two
instruction cycles) because only the buffers are written.
A programming cycle is required for programming each
row.
DS70289F-page 48
RTSP Operation
Preliminary
5.3
A complete programming sequence is necessary for
programming or erasing the internal Flash in RTSP
mode.
programming operation is finished.
The programming time depends on the FRC accuracy
(see Table 22-18, “AC Characteristics: Internal RC
Accuracy”) and the value of the FRC Oscillator Tuning
register (see Register 8-4). Use the following formula to
calculate the minimum and maximum values for the
Row Write Time, Page Erase Time, and Word Write
Cycle Time parameters (see Table 22-12, “DC
Characteristics: Program Memory”).
EQUATION 5-1:
For example, if the device is operating at +125C, the
FRC accuracy will be ±5%. If the TUN<5:0> bits (see
Register 8-4) are set to ‘b111111, the Minimum Row
Write Time is:
and, the Maximum Row Write Time is:
Setting the WR bit (NVMCON<15>) starts the
operaion, and the WR bit is automatically cleared when
the operation is finished.
5.4
Two SFRs are used to read and write the program
Flash memory:
• NVMCON: Flash Memory Control Register
• NVMKEY: Nonvolatile Memory Key Register
The NVMCON register (Register 5-1) controls which
blocks need to be erased, which memory type is to be
programmed and the start of the programming cycle.
NVMKEY (Register 5-2) is a write-only register that is
used for write protection. To start a programming or
erase
consecutively write 0x55 and 0xAA to the NVMKEY
register.
Operations” for further details.
T
T
RW
RW
------------------------------------------------------------------------------------------------------------------------- -
7.37 MHz
=
=
--------------------------------------------------------------------------------------------- - 1.435ms
7.37 MHz
--------------------------------------------------------------------------------------------- - 1.586ms
7.37 MHz
The
sequence,
Programming Operations
Control Registers
Refer

processor

FRC Accuracy



11064 Cycles

to
11064 Cycles
1
1 0.05
+
–
the
PROGRAMMING TIME
0.05
 2009 Microchip Technology Inc.
Section 5.3
T

stalls

user


%


1 0.00375
1 0.00375

–
–

(waits)
application
FRC Tuning
“Programming

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=
=
until
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must
the