參數(shù)資料
型號(hào): PIC32MX795F512L-80I/BG
廠商: Microchip Technology
文件頁(yè)數(shù): 63/64頁(yè)
文件大?。?/td> 0K
描述: IC MCU 32BIT 512KB FLASH 121XBGA
特色產(chǎn)品: 32-Bit PIC? Microcontroller
PIC32 32-Bit MCU Families
標(biāo)準(zhǔn)包裝: 184
系列: PIC® 32MX
核心處理器: MIPS32? M4K?
芯體尺寸: 32-位
速度: 80MHz
連通性: CAN,以太網(wǎng),I²C,SPI,UART/USART,USB OTG
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,DMA,POR,PWM,WDT
程序存儲(chǔ)器容量: 512KB(512K x 8)
程序存儲(chǔ)器類(lèi)型: 閃存
RAM 容量: 128K x 8
電壓 - 電源 (Vcc/Vdd): 2.3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 121-TFBGA
包裝: 托盤(pán)
產(chǎn)品目錄頁(yè)面: 650 (CN2011-ZH PDF)
PIC32MX
DS61145K-page 8
2007-2012 Microchip Technology Inc.
5.0
EJTAG vs. ICSP
Programming is accomplished through the EJTAG
module in the CPU core. EJTAG is connected to either
the full set of JTAG pins, or a reduced 2-wire to 4-wire
EJTAG interface for ICSP mode. In both modes, pro-
gramming of the PIC32MX Flash memory is accom-
plished
through
the
ETAP
controller.
The
TAP
Controller uses the TMS pin to determine if Instruction
or Data registers should be accessed in the shift path
between TDI and TDO (see Figure 5-1).
The basic concept of EJTAG that is used for
programming is the use of a special memory area
called DMSEG (0xFF200000 to 0xFF2FFFFF), which
is only available when the processor is running in
Debug mode. All instructions are serially shifted into an
internal buffer, and then loaded into the Instruction
register and executed by the CPU. Instructions are fed
through the ETAP state machine in 32-bit groups.
FIGURE 5-1:
TAP CONTROLLER
TMS
TCK
TDO
TDI
Tap Controller
Instruction, Data and Control Registers
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PIC32MX795F512L-80IPT 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PIC32 Flash Programming Specification
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