DSPIC30F5016-20E/PT Microchip Technology, DSPIC30F5016-20E/PT Datasheet - Page 59
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
DSPIC30F5016-20E/PT
Manufacturer Part Number
DSPIC30F5016-20E/PT
Description
IC DSPIC MCU/DSP 66K 80TQFP
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F2011-20ISO.pdf
(66 pages)
2.DSPIC30F2011-20IP.pdf
(26 pages)
3.DSPIC30F5016-30IPT.pdf
(230 pages)
4.DSPIC30F5016-30IPT.pdf
(14 pages)
5.DSPIC30F5016-30IPT.pdf
(6 pages)
6.DSPIC30F5016-30IPT.pdf
(18 pages)
Specifications of DSPIC30F5016-20E/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
68
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 ~ 125°C
Package / Case
80-TFQFP
For Use With
AC164320 - MODULE SKT MPLAB PM3 80TQFPAC30F007 - MODULE SKT FOR DSPIC30F 80TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DSPIC30F5016-20E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- DSPIC30F2011-20ISO PDF datasheet
- DSPIC30F2011-20IP PDF datasheet #2
- DSPIC30F5016-30IPT PDF datasheet #3
- DSPIC30F5016-30IPT PDF datasheet #4
- DSPIC30F5016-30IPT PDF datasheet #5
- DSPIC30F5016-30IPT PDF datasheet #6
- Current page: 59 of 230
- Download datasheet (4Mb)
7.3
To write an EEPROM data location, the following
sequence must be followed:
1.
2.
3.
EXAMPLE 7-4:
© 2008 Microchip Technology Inc.
; Point to data memory
; The NVMADR captures last table access address
; Select data EEPROM for 1 word op
; Operate key to allow write operation
; Write cycle will complete in 2mS. CPU is not stalled for the Data Write Cycle
; User can poll WR bit, use NVMIF or Timer IRQ to determine write complete
Erase data EEPROM word.
a)
b)
c)
d)
e)
f)
g)
h)
Write data word into data EEPROM write
latches.
Program 1 data word into data EEPROM.
a)
b)
c)
d)
e)
f)
g)
MOV
MOV
MOV
MOV
TBLWTL
MOV
MOV
DISI
MOV
MOV
MOV
MOV
BSET
NOP
NOP
Writing to the Data EEPROM
Select word, data EEPROM, erase and set
WREN bit in NVMCON register.
Write address of word to be erased into
NVMADRU/NVMADR.
Enable NVM interrupt (optional).
Write ‘0x55’ to NVMKEY.
Write ‘0xAA’ to NVMKEY.
Set the WR bit. This will begin erase cycle.
Either poll NVMIF bit or wait for NVMIF
interrupt.
The WR bit is cleared when the erase cycle
ends.
Select word, data EEPROM, program and
set WREN bit in NVMCON register.
Enable NVM write done interrupt (optional).
Write ‘0x55’ to NVMKEY.
Write ‘0xAA’ to NVMKEY.
Set the WR bit. This will begin program
cycle.
Either poll NVMIF bit or wait for NVM
interrupt.
The WR bit is cleared when the write cycle
ends.
#5
DATA EEPROM WORD WRITE
#LOW_ADDR_WORD,W0
#HIGH_ADDR_WORD,W1
W1
#LOW(WORD),W2
W2
#0x4004,W0
W0
#0x55,W0
W0
#0xAA,W1
W1
NVMCON,#WR
,
,
,
,
,
TBLPAG
[ W0]
NVMCON
NVMKEY
NVMKEY
; Block all interrupts with priority <7
; for next 5 instructions
The write will not initiate if the above sequence is not
exactly followed (write 0x55 to NVMKEY, write 0xAA to
NVMCON, then set WR bit) for each word. It is strongly
recommended that interrupts be disabled during this
code segment.
Additionally, the WREN bit in NVMCON must be set to
enable writes. This mechanism prevents accidental
writes to data EEPROM, due to unexpected code
execution. The WREN bit should be kept clear at all
times, except when updating the EEPROM. The
WREN bit is not cleared by hardware.
After a write sequence has been initiated, clearing the
WREN bit will not affect the current write cycle. The WR
bit will be inhibited from being set unless the WREN bit
is set. The WREN bit must be set on a previous
instruction. Both WR and WREN cannot be set with the
same instruction.
At the completion of the write cycle, the WR bit is
cleared in hardware and the Nonvolatile Memory Write
Complete Interrupt Flag bit (NVMIF) is set. The user
may either enable this interrupt, or poll this bit. NVMIF
must be cleared by software.
7.3.1
Once the user has erased the word to be programmed,
then a table write instruction is used to write one write
latch, as shown in Example 7-4.
; Init pointer
; Get data
; Write data
; Write the 0x55 key
; Write the 0xAA key
; Initiate program sequence
dsPIC30F5015/5016
WRITING A WORD OF DATA
EEPROM
DS70149D-page 59
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