DSPIC30F5015-20I/PT Microchip Technology, DSPIC30F5015-20I/PT Datasheet - Page 58

• Manufacturer Part Number: DSPIC30F5015-20I/PT
• Description: Digital Signal Processor
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F5015-20I/PT

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 52
• Program Memory Size: 66KB (22K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC30F008 - MODULE SKT FOR DSPIC30F 64TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DSPIC30F501520IPT

dsPIC30F5015/5016
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 the NVMCON
register. Setting the WR bit initiates the erase, as
shown in Example 7-2.
EXAMPLE 7-2:
7.2.2
The NVMADRU and NVMADR registers must point to
the block. Erase a block of data Flash and set the
ERASE and WREN bits in the NVMCON register.
Setting the WR bit initiates the erase, as shown in
Example 7-3.
EXAMPLE 7-3:
DS70149D-page 58
; 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
#4045,W0
W0
#5
#0x55,W0
W0
#0xAA,W1
W1
NVMCON,#WR
#4044,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
; 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
© 2008 Microchip Technology Inc.