DSPIC30F3014-30I/P Microchip Technology, DSPIC30F3014-30I/P Datasheet - Page 50

• Manufacturer Part Number: DSPIC30F3014-30I/P
• Description: IC DSPIC MCU/DSP 24K 40DIP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F3014-30I/P

• Program Memory Type: FLASH
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 30
• Program Memory Size: 24KB (8K x 24)
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 13x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Data Bus Width: 16 bit
• Processor Series: DSPIC30F
• Core: dsPIC
• Maximum Clock Frequency: 40 MHz
• Operating Supply Voltage: 2.5 V to 5.5 V
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Data Rom Size: 1024 B
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM300018, DM330011
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC30F003 - MODULE SOCKET DSPIC30F 40DIPDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLEACICE0206 - ADAPTER MPLABICE 40P 600 MIL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DSPIC30F301430/P

dsPIC30F3014/4013
6.2
6.2.1
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 WR and WREN bits in the NVMCON register.
Setting the WR bit initiates the erase, as shown in
Example
EXAMPLE 6-2:
EXAMPLE 6-3:
DS70138G-page 50
; Select data EEPROM word, WR, 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 block, WR, 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
6-2.
ERASING A BLOCK OF DATA
EEPROM
#4044,W0
W0
#5
#0x55,W0
W0
#0xAA,W1
W1
NVMCON,#WR
#4045,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
; 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
;
; Write the 0x55 key
;
; Write the 0xAA key
; Initiate erase sequence
6.2.2
The NVMADRU and NVMADR registers must point to
the block. Select a block of data Flash and set the WR
and WREN bits in the NVMCON register. Setting the
WR bit initiates the erase, as shown in
ERASING A WORD OF DATA
EEPROM
 2010 Microchip Technology Inc.
Example
6-3.