DSPIC30F3011-30I/PT Microchip Technology Inc., DSPIC30F3011-30I/PT Datasheet - Page 61
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
DSPIC30F3011-30I/PT
Manufacturer Part Number
DSPIC30F3011-30I/PT
Description
16 BIT MCU/DSP 44LD 30MIPS 24 KB FLASH
Manufacturer
Microchip Technology Inc.
Type
DSPr
Datasheet
1.DSPIC30F3011-30IPT.pdf
(244 pages)
Specifications of DSPIC30F3011-30I/PT
A/d Inputs
9-Channels, 10-Bit
Cpu Speed
30 MIPS
Eeprom Memory
1K Bytes
Input Output
30
Interface
I2C/SPI/UART, USART
Ios
30
Memory Type
Flash
Number Of Bits
16
Package Type
44-pin TQFP
Programmable Memory
24K Bytes
Ram Size
1K Bytes
Timers
5-16-bit, 2-32-bit
Voltage, Range
2.5-5.5
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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4.
5.
EXAMPLE 6-1:
2004 Microchip Technology Inc.
; Setup NVMCON for erase operation, multi word write
; program memory selected, and writes enabled
; Init pointer to row to be ERASED
Write 32 instruction words of data from data
RAM into the program Flash write latches.
Program 32 instruction words into program
Flash.
a)
b)
c)
d)
Setup NVMCON register for multi-word,
program Flash, program, and set WREN
bit.
Write ‘55’ to NVMKEY.
Write ‘AA’ to NVMKEY.
Set the WR bit. This will begin program
cycle.
MOV
MOV
MOV
MOV
MOV
MOV
DISI
MOV
MOV
MOV
MOV
BSET
NOP
NOP
#0x4041,W0
W0
#tblpage(PROG_ADDR),W0
W0
#tbloffset(PROG_ADDR),W0
W0, NVMADR
#5
#0x55,W0
W0
#0xAA,W1
W1
NVMCON,#WR
,
,
,
,
ERASING A ROW OF PROGRAM MEMORY
NVMCON
NVMADRU
NVMKEY
NVMKEY
Preliminary
;
; Init NVMCON SFR
;
; Initialize PM Page Boundary SFR
; Intialize in-page EA[15:0] pointer
; Intialize NVMADR SFR
; Block all interrupts with priority <7
; for next 5 instructions
; Write the 0x55 key
;
; Write the 0xAA key
; Start the erase sequence
; Insert two NOPs after the erase
; command is asserted
6.
6.6.2
Example 6-1 shows a code sequence that can be used
to erase a row (32 instructions) of program memory.
e)
f)
Repeat steps 1 through 5 as needed to program
desired amount of program Flash memory.
CPU will stall for duration of the program
cycle.
The WR bit is cleared by the hardware
when program cycle ends.
ERASING A ROW OF PROGRAM
MEMORY
dsPIC30F
DS70082G-page 59
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