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参数资料
| 型号： | DS80C400-FNY+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 72/97页 |
| 文件大小： | 0K |
| 描述： | IC MCU 75MHZ 16MB HP 100-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 90 |
| 系列： | 80C |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 75MHz |
| 连通性： | 1 线，CAN，EBI/EMI，以太网，SIO，UART/USART |
| 外围设备： | 电源故障复位，WDT |
| 输入/输出数： | 64 |
| 程序存储器容量： | 64KB（64K x 8） |
| 程序存储器类型： | ROM |
| RAM 容量： | 1K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.62 V ~ 3.6 V |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 100-LQFP |
| 包装： | 托盘 |
| 配用： | DS80C400-KIT#-ND - EVAL KIT FOR DS80C400 |
| 其它名称： | DS80C400+FNY DS80C400+FNY+ DS80C400+FNY+-ND DS80C400+FNY-ND |
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DS80C400 Network Microcontroller
74 of 97
Now armed with an IP address and TFTP server IP address, the DS80C400 tries to find code to be loaded into
external program memory. The ROM first requests to read the file from the TFTP server coinciding with its unique
physical MAC address (e.g., 006035AB9811). If the request is denied, it issues a second, less specific, request to
read the filename associated with the DS80C400 ROM revision (e.g. TINI400-1.0.1). If this request is denied, then
lastly it attempts to read from the TFTP server the file ‘TINI400.’ Using this strategy, the TFTP server operator can
distinguish between different devices and/or different releases of the DS80C400 ROM firmware.
After successfully locating the desired file on the TFTP server, the DS80C400 must transfer and program the file
into external memory. Currently, the DS80C400 only offers programming support for SRAM and AMD compatible
flash memory devices. The NetBoot code expects the transferred file to be in the Maxim tbin2 format. The tbin2
format consists of one or more records, allowing binary concatenation of multiple images into one file. Figure 16
illustrates the tbin2 file format.
For each 64kB bank to be programmed, the ROM first performs a CRC-16 of the current memory bank contents. If
the CRC-16 of the current memory matches the data to be programmed, the bank is left alone. If the CRC-16
differs, it performs a couple of write/read-back operations to assess whether the bank is flash or SRAM and then
executes the erasure (if flash) and programming.
After completion of the TFTP server file transfer and programming of external memory, the NetBoot process
concludes by updating a ‘previous TFTP success’ flag and executing the ROM find-user-code routine.
If either DHCP or the TFTP transfer fail, the NetBoot code checks whether the TFTP transfer has been successful
in a previous attempt. (Note that this feature requires cooperation by the user application.) If so, the DS80C400
ROM exits NetBoot and transfers execution to the find-user-code routine. If the TFTP transfer has not been
successful in the past, the DS80C400 ROM allows the watchdog timer to reset the DS80C400.
Figure 16. Maxim tbin2 Record and File Format
Find-User Code
The DS80C400 ROM firmware attempts to find valid user code by searching for specific signature bytes at the
beginning of each 64kB block of memory. The search begins at address location C00000h and continues
downward through memory in decrements of 64kB until executable code is located or failure occurs (search
terminates at 000000h). For the find-user-code routine to judge a block of memory as valid executable code, it
must be tagged with the signature bytes shown in Figure 17.
VERSION
TARGET ADDRESS (3)
LENGTH-1 (2)
CRC-16 (2)
BINARY DATA (LENGTH)
tbin2 record
.
tbin2 record
tbin2 file
FIELD
FORMAT (NOTES)
Version:
01h (versions other than 01h reserved for future use)
Target Address:
LSB, MSB, XSB (target addresses > FF0000h reserved)
Length-1:
LSB, MSB
CRC-16:
LSB, MSB
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS80C400-FNY+ | 功能描述:8位微控制器 -MCU Network MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| DS80C400-KIT | 功能描述:EVAL KIT FOR DS80C400 RoHS:否 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:- 产品培训模块:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色产品:Blackfin? BF50x Series Processors 标准包装:1 系列:Blackfin® 类型:DSP 适用于相关产品:ADSP-BF548 所含物品:板，软件，4x4 键盘，光学拨轮，QVGA 触摸屏 LCD 和 40G 硬盘 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相关产品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA |
| DS80C400-KIT# | 功能描述:开发板和工具包 - 8051 RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| DS80C410 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontrollers with Ethernet and CAN |
| DS80C410_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontrollers with Ethernet and CAN |
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