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您現在的位置：買賣IC網 > PDF目錄371042 > MC68LC040 (Motorola, Inc.) 32-Bit Microprocessors.(32位微處理器) PDF資料下載

型號：	MC68LC040
廠商：	Motorola, Inc.
英文描述：	32-Bit Microprocessors.(32位微處理器)
中文描述：	32位微處理器。（32位微處理器）
文件頁數：	409/442頁
文件大小：	2582K
代理商：	MC68LC040

M68040 USER’S MANUAL

while the bypass register is selected as the serial path between TDI and TDO. The signals

driven from the MC68040V and MC68EC040V pins do not change while the CLAMP

instruction is selected.

C.6.1.5 BYPASS.

The BYPASS instruction selects the single-bit bypass register, creating

a single-bit shift-register path from TDI to the bypass register to TDO. The instruction

enhances test efficiency when a component other than the MC68040V and MC68EC040V

becomes the device under test. When the bypass register is initially selected, the

instruction shift register stage is set to a logic zero on the rising edge of TCK following

entry into the capture-DR state. Therefore, the first bit to be shifted out after selecting the

bypass register is always a logic zero. Figure C-5 illustrates the bypass register.

Figure C-5. Bypass Register

C.6.2 Boundary Scan Register

The 188-bit boundary scan register uses the TAP controller to scan user-defined values

into the output buffers, capture values presented to input pins, and control the direction of

bidirectional pins. The instruction shift register cell nearest TDO (i.e., first to be shifted out)

is defined as bit zero. The last bit to be shifted out is bit 187. This register includes cells

for all device signal pins and clock pins along with associated control signals.

The MC68040V and MC68EC040V boundary scan register consists of three cell structure

types, O.Latch, I.Pin, and IO.Ctl, that are associated with a boundary scan register bit. All

boundary scan output cells capture the logic level of the device output latch during the

capture-DR state. Figures C-6 through C-9 illustrate these three cell types. Figure 6-6

illustrates the general arrangement of these cells.

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相關代理商/技術參數	參數描述
MC68LC040FE20A	功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68LC040FE25A	功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68LC040FE33	制造商:Motorola Inc 功能描述:
MC68LC040FE33A	功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68LC040FE40A	功能描述:IC MPU 32BIT 40MHZ 184-CQFP RoHS:否類別:集成電路 (IC) >> 嵌入式 - 微處理器系列:M680x0 標準包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點:- 速度:1.2GHz 電壓:1.1V 安裝類型:表面貼裝封裝/外殼:783-BBGA，FCBGA 供應商設備封裝:783-FCPBGA（29x29）包裝:托盤

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