參數(shù)資料
型號: DSPIC30F2020-30I/MM
廠商: Microchip Technology
文件頁數(shù): 16/66頁
文件大小: 0K
描述: IC DSPIC MCU/DSP 12K 28QFN
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
特色產(chǎn)品: SMPS & Digital Power Conversion Solutions
標(biāo)準(zhǔn)包裝: 61
系列: dsPIC™ 30F
核心處理器: dsPIC
芯體尺寸: 16-位
速度: 30 MIP
連通性: I²C,IrDA,LIN,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 21
程序存儲(chǔ)器容量: 12KB(4K x 24)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-VQFN 裸露焊盤
包裝: 管件
產(chǎn)品目錄頁面: 650 (CN2011-ZH PDF)
配用: DM300023-ND - KIT DEMO DSPICDEM SMPS BUCK
AC164322-ND - MODULE SOCKET MPLAB PM3 28/44QFN
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
2010 Microchip Technology Inc.
DS70102K-page 23
dsPIC30F Flash Programming Specification
8.0
PROGRAMMING EXECUTIVE
COMMANDS
8.1
Command Set
The programming executive command set is shown in
Table 8-1. This table contains the opcode, mnemonic,
length, time out and description for each command.
Functional details on each command are provided in
the
command
descriptions
(see
8.2
Command Format
All programming executive commands have a general
format consisting of a 16-bit header and any required
data for the command (see Figure 8-1). The 16-bit
header consists of a 4-bit opcode field, which is used to
identify the command, followed by a 12-bit command
length field.
FIGURE 8-1:
COMMAND FORMAT
The command opcode must match one of those in the
command set. Any command that is received which
does not match the list in Table 8-1 will return a “NACK”
The command length is represented in 16-bit words
since the SPI operates in 16-bit mode. The
programming executive uses the Command Length
field to determine the number of words to read from the
SPI port. If the value of this field is incorrect, the
command will not be properly received by the
programming executive.
8.3
Packed Data Format
When 24-bit instruction words are transferred across
the 16-bit SPI interface, they are packed to conserve
space using the format shown in Figure 8-2. This
format minimizes traffic over the SPI and provides the
programming executive with data that is properly
aligned for performing table write operations.
Note:
When the number of instruction words
transferred is odd, MSB2 is zero and lsw2
cannot be transmitted.
FIGURE 8-2:
PACKED INSTRUCTION
WORD FORMAT
8.4
Programming Executive Error
Handling
The
programming
executive
will
“NACK”
all
unsupported commands. Additionally, due to the
memory constraints of the programming executive, no
checking is performed on the data contained in the
Programmer command. It is the responsibility of the
programmer to command the programming executive
with valid command arguments, or the programming
operation may fail. Additional information on error
handling is provided in Section 9.2.3 “QE_Code
15
12 11
0
Opcode
Length
Command Data First Word (if required)
Command Data Last Word (if required)
15
8 7
0
lsw1
MSB2
MSB1
lsw2
lswx:
Least significant 16 bits of instruction word
MSBx: Most Significant Byte of instruction word
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