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參數資料
| 型號： | DSPIC30F2020-20E/SP |
| 廠商： | Microchip Technology |
| 文件頁數： | 56/66頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DSPIC MCU/DSP 12K 28DIP |
| 產品培訓模塊： | Asynchronous Stimulus |
| 標準包裝： | 15 |
| 系列： | dsPIC™ 30F |
| 核心處理器： | dsPIC |
| 芯體尺寸： | 16-位 |
| 速度： | 20 MIPS |
| 連通性： | I²C，IrDA，LIN，SPI，UART/USART |
| 外圍設備： | 欠壓檢測/復位，POR，PWM，WDT |
| 輸入/輸出數： | 21 |
| 程序存儲器容量： | 12KB（4K x 24） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 5.5 V |
| 數據轉換器： | A/D 8x10b |
| 振蕩器型： | 內部 |
| 工作溫度： | -40°C ~ 125°C |
| 封裝/外殼： | 28-DIP（0.300"，7.62mm） |
| 包裝： | 管件 |
| 配用： | DM300023-ND - KIT DEMO DSPICDEM SMPS BUCK DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE |
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dsPIC30F Flash Programming Specification
DS70102K-page 6
2010 Microchip Technology Inc.
5.2
Entering Enhanced ICSP Mode
The Enhanced ICSP mode is entered by holding PGC
and PGD high, and then raising MCLR/VPP to VIHH
(high voltage), as illustrated in Figure 5-2. In this mode,
the code memory, data EEPROM and Configuration
bits can be efficiently programmed using the program-
ming executive commands that are serially transferred
using PGC and PGD.
FIGURE 5-2:
ENTERING ENHANCED
ICSP MODE
5.3
Chip Erase
Before a chip can be programmed, it must be erased.
The Bulk Erase command (ERASEB) is used to perform
this task. Executing this command with the MS
command field set to 0x3 erases all code memory, data
EEPROM and code-protect Configuration bits. The
Chip Erase process sets all bits in these three memory
regions to ‘1’.
Since non-code-protect Configuration bits cannot be
erased, they must be manually set to ‘1’ using multiple
PROGC commands. One PROGC command must be
sent for each Configuration register (see Section 5.7
If Advanced Security features are enabled, then indi-
vidual Segment Erase operations would need to be
performed, depending on which segment needs to be
programmed at a given stage of system programming.
The user should have the flexibility to select specific
segments for programming.
Note:
The Device ID registers cannot be erased.
These registers remain intact after a Chip
Erase is performed.
5.4
Blank Check
The term “Blank Check” means to verify that the device
has been successfully erased and has no programmed
memory cells. A blank or erased memory cell reads as
‘1’. The following memories must be blank checked:
All implemented code memory
All implemented data EEPROM
All Configuration bits (for their default value)
The Device ID registers (0xFF0000:0xFF0002) can be
ignored by the Blank Check since this region stores
device information that cannot be erased. Additionally,
all unimplemented memory space should be ignored
from the Blank Check.
The QBLANK command is used for the Blank Check. It
determines if the code memory and data EEPROM are
erased by testing these memory regions. A ‘BLANK’ or
‘NOT BLANK’ response is returned. The READD
command is used to read the Configuration registers. If
it is determined that the device is not blank, it must be
erased (see Section 5.3 “Chip Erase”) before
attempting to program the chip.
Note 1: The sequence that places the device into
Enhanced ICSP mode places all unused
I/Os in the high-impedance state.
2: Before entering Enhanced ICSP mode,
clock switching must be disabled using
ICSP, by programming the FCKSM<1:0>
bits in the FOSC Configuration register to
‘11’ or ‘10’.
3: When in Enhanced ICSP mode, the SPI
output pin (SDO1) will toggle while the
device is being programmed.
MCLR/VPP
P7
PGD
PGD = Input
PGC
VDD
VIHH
P6
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