DSPIC30F4011-30I/P Microchip Technology Inc., DSPIC30F4011-30I/P Datasheet - Page 61

• Manufacturer Part Number: DSPIC30F4011-30I/P
• Description: 16 BIT MCU/DSP 40LD 30MIPS 48 KB FLASH
• Manufacturer: Microchip Technology Inc.
• Type: DSPr

Specifications of DSPIC30F4011-30I/P

• A/d Inputs: 9-Channels, 10-Bit
• Comparators: 4
• Cpu Speed: 30 MIPS
• Eeprom Memory: 1K Bytes
• Input Output: 30
• Interface: CAN, I2C/SPI/UART, USART
• Ios: 30
• Memory Type: Flash
• Number Of Bits: 16
• Package Type: 40-pin PDIP
• Programmable Memory: 48K Bytes
• Ram Size: 2K Bytes
• Timers: 5-16-bit, 2-32-bit
• Voltage, Range: 2.5-5.5
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

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