DSPIC33FJ64MC506-I/PT Microchip Technology Inc., DSPIC33FJ64MC506-I/PT Datasheet - Page 80
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DSPIC33FJ64MC506-I/PT
Manufacturer Part Number
DSPIC33FJ64MC506-I/PT
Description
DSP, 16-Bit, 64KB Flash, 8KB RAM, 53 I/O, TQFP-64
Manufacturer
Microchip Technology Inc.
Type
DSPr
Datasheet
1.DSPIC33FJ64MC506-IPT.pdf
(370 pages)
Specifications of DSPIC33FJ64MC506-I/PT
A/d Inputs
16-Channels, 12-Bit
Comparators
8
Cpu Speed
40 MIPS
Eeprom Memory
0 Bytes
Input Output
53
Interface
CAN, I2C, SPI, UART/USART
Ios
53
Memory Type
Flash
Number Of Bits
16
Package Type
64-pin TQFP
Programmable Memory
64K Bytes
Ram Size
8K Bytes
Timers
9-16-bit, 4-32-bit
Voltage, Range
3-3.6
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
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Quantity
Price
Company:
Part Number:
DSPIC33FJ64MC506-I/PT
Manufacturer:
Microchip Technology
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dsPIC33F
4.2
The dsPIC33F Flash program memory array is
organized into rows of 64 instructions or 192 bytes.
RTSP allows the user 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.
Table 26-11, DC Characteristics: Program Memory
shows typical erase and programming times. 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 in sequential order. 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 set-
ting the control bits in the NVMCON register. A total of
64 TBLWTL and TBLWTH instructions are required to
load the instructions.
All of the table write operations are single-word writes
(two instruction cycles) because only the buffers are
written.
programming each row.
DS70165E-page 78
RTSP Operation
A
programming
cycle
is
required
Preliminary
for
4.3
There are two SFRs used to read and write the
program Flash memory: NVMCON and NVMKEY.
The NVMCON register (Register 4-1) controls which
blocks are to be erased, which memory type is to be
programmed and the start of the programming cycle.
NVMKEY is a write-only register that is used for write
protection. To start a programming or erase sequence,
the user must consecutively write 55h and AAh to the
NVMKEY register. Refer to Section 4.4 “Programming
Operations” for further details.
4.4
A complete programming sequence is necessary for
programming or erasing the internal Flash in RTSP
mode. A programming operation is nominally 4 ms in
duration and the processor stalls (waits) until the oper-
ation is finished. Setting the WR bit (NVMCON<15>)
starts the operation, and the WR bit is automatically
cleared when the operation is finished.
Control Registers
Programming Operations
© 2007 Microchip Technology Inc.
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