參數(shù)資料
型號： MC68LC302PU20CT
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASITC, LQFP-100
文件頁數(shù)： 108/128頁
文件大?。?/td> 641K
代理商： MC68LC302PU20CT
MOTOROLA
MC68EN302 REFERENCE MANUAL
6-1
SECTION 6
APPLICATIONS
6.1 BRINGING THE MC68EN302 OUT OF RESET
The following paragraphs provide an example of how to bring the MC68EN302 out of reset
and initialize the Ethernet Controller to perform internal loopback of one frame. Bank 0 of
DRAM is used as packet memory.
1. Write the Base Address Register (BAR) with the desired starting point of the 302 core
4k-byte relocatable address space. Write the Module Bus Controller Base Address
Register (MOBAR) with the starting point of the 4k-byte relocatable address space for
the module bus controller, DRAM controller and Ethernet controller CSRS and
memory.
2. Write to the Option Register (OR) to include 256K bytes of space and so that the
DTACK field may be written to to change the number of wait states. Also note that to
access data in the program ROM, the CFC bits should be modified.
3. OR1 affects the RAM range, controls DTACK, and will also affect whether or not
function code comparisons are performed.
4. BR1 will set up the RAM address, enable the RAM, and set the function code
appropriately.
5. Switch from ROM location to dual-port RAM location to assure that the reset vector is
supplied by the ROM, but the exception vectors all come from the RAM. This switch is
performed by a short, dual-port RAM program which is summarized below, and is
explained in depth in Appendix D.2 of the MC68302 User’s Manual.
MOVE.W #$A001, (Address of BR1).L
MOVE.W #$C201, (Address or BR0).L
JMP
($Address in ROM).L
After the code is copied, then execute the following instruction, which will cause a
jump to dual port RAM
JMP
($Base Address).L
6. MBC - the MBC register controls bits for overall system level functionality of the
Module Bus Controller. This register must be initialized to assure smooth functionality
between the SIM module on the MC68EN302 and the SIM module on the internal 302
core. In the MBC register the module bus controller response to BCLR from the
internal 302 is controlled, as is the parity, function code for the Ethernet specific core,
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參數(shù)描述
MC68LC302PU20VCT 功能描述:IC MPU NETWORK 20MHZ 100-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標準包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點:- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應商設(shè)備封裝:357-PBGA（25x25） 包裝:托盤
MC68LC302PU25CT 功能描述:微處理器 - MPU 25MHz 2.5MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) 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
MC68LK332ACAG16 功能描述:32位微控制器 - MCU 32BIT MCU 2KRAM TPU QSM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
MC68LK332ACAG16 制造商:Freescale Semiconductor 功能描述:Microcontroller
MC68LK332ACEH16 功能描述:32位微控制器 - MCU 32BIT MCU 2KRAM TPU QSM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
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