DSPIC30F3011 Microchip Technology Inc., DSPIC30F3011 Datasheet - Page 56
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
DSPIC30F3011
Manufacturer Part Number
DSPIC30F3011
Description
Dspic30f3010/3011 Enhanced Flash 16-bit Digital Signal Controller
Manufacturer
Microchip Technology Inc.
Datasheet
1.DSPIC30F3011.pdf
(220 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DSPIC30F3011-20E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
DSPIC30F3011-20I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
DSPIC30F3011-30I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
DSPIC30F3011-30I/P
Manufacturer:
Microchip
Quantity:
927
Company:
Part Number:
DSPIC30F3011-30I/PT
Manufacturer:
MICROCHIP
Quantity:
316
Company:
Part Number:
DSPIC30F3011-30I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
DSPIC30F3011-30I/PT
Manufacturer:
MICROCHI
Quantity:
20 000
Company:
Part Number:
DSPIC30F3011T-20E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
DSPIC30F3011T-20I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
DSPIC30F3011T-30I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
dsPIC30F3010/3011
7.2
7.2.1
In order to erase a block of data EEPROM, the
NVMADRU and NVMADR registers must initially
point to the block of memory to be erased. Configure
NVMCON for erasing a block of data EEPROM, and
set the ERASE and WREN bits in NVMCON register.
Setting the WR bit initiates the erase, as shown in
Example 7-2.
EXAMPLE 7-2:
7.2.2
The TBLPAG and NVMADR registers must point to
the block. Select erase a block of data Flash, and set
the ERASE and WREN bits in NVMCON register.
Setting the WR bit initiates the erase, as shown in
Example 7-3.
EXAMPLE 7-3:
DS70141D-page 54
; Select data EEPROM block, ERASE, WREN bits
; Start erase cycle by setting WR after writing key sequence
; Erase cycle will complete in 2mS. CPU is not stalled for the Data Erase Cycle
; User can poll WR bit, use NVMIF or Timer IRQ to determine erasure complete
; Select data EEPROM word, ERASE, WREN bits
; Start erase cycle by setting WR after writing key sequence
; Erase cycle will complete in 2mS. CPU is not stalled for the Data Erase Cycle
; User can poll WR bit, use NVMIF or Timer IRQ to determine erasure complete
MOV
MOV
DISI
MOV
MOV
MOV
MOV
BSET
MOV
MOV
DISI
MOV
MOV
MOV
MOV
BSET
NOP
NOP
NOP
NOP
Erasing Data EEPROM
ERASING A BLOCK OF DATA
EEPROM
ERASING A WORD OF DATA
EEPROM
#0x4045,W0
W0
#5
#0x55,W0
W0
#0xAA,W1
W1
NVMCON,#WR
#0x4044,W0
W0
#5
#0x55,W0
W0
#0xAA,W1
W1
NVMCON,#WR
,
,
,
,
,
,
NVMCON
NVMKEY
NVMKEY
NVMCON
NVMKEY
NVMKEY
DATA EEPROM BLOCK ERASE
DATA EEPROM WORD ERASE
;
; Write the 0x55 key
;
; Write the 0xAA key
; Initiate erase sequence
Confidential
; Initialize NVMCON SFR
; Block all interrupts with priority <7
; for next 5 instructions
;
; Write the 0x55 key
;
; Write the 0xAA key
; Initiate erase sequence
; Block all interrupts with priority <7
; for next 5 instructions
© 2007 Microchip Technology Inc.