DS80C410-FNY+ (Maxim) PDF资料下载 Datasheet(78/102 页)

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参数资料

型号：	DS80C410-FNY+
厂商：	Maxim Integrated Products
文件页数：	78/102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：	64K 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

DS80C410/DS80C411 Network Microcontrollers with Ethernet and CAN

77 of 102

NetBoot

The NetBoot process affords the user flexibility to download or update code remotely over the network. This

capability is quite powerful. Not only does it make firmware revisions trivial, but it also makes remote diagnostics

very practical. Also, since NetBoot can automatically reload the latest version of the user application code, the

system designer now has the option to select volatile SRAM for code storage.

For the NetBoot function to work, the DS80C410 ROM firmware must initialize certain hardware components and

create the environment needed to support the process. The NetBoot initialization code implements a primitive

memory manager, kicks off the task scheduler, and initializes the 1-Wire hardware, Ethernet driver, TCP/IP stack,

and socket layer.

Once the NetBoot initialization code has completed, the true network boot process can begin. The DS80C410

Ethernet MAC first must be assigned a physical address. Within the NetBoot process, the physical MAC address

can only be acquired through an external DS2502-(E48) 1-Wire chip. Hence, this 1-Wire chip, containing the MAC

address, is required for successful NetBoot operation. Figure 15 shows the NetBoot code flow chart.

Figure 15. NetBoot Code Flow Chart

Next, the DS80C410 ROM searches the 1-Wire bus for an external device (separate from the device containing the

MAC address) that contains an IP address and TFTP server IP address. In order to correctly acquire the IP and

TFTP server addresses from an external 1-Wire device, the data read from the device must conform to a specific

format. This format is shown in Figure 16.

NETBOOT

INITIALIZATION CODE

ACQUIRE MAC

ADDRESS FROM DS2502

1-WIRE DEVICE

WITH IP

ADDRESS

FIND USER CODE

TFTP/FLASH WRITE

DHCP

GET IP ADDRESS FROM

1-WIRE DEVICE

NetBoot PROCESS

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相关代理商/技术参数	参数描述
DS80C410-FNY+	功能描述:8位微控制器 -MCU Network MCU w/Ethernet & CAN 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
DS80C411	制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontrollers with Ethernet and CAN
DS80C411-FNY	功能描述:8位微控制器 -MCU Network MCU w/Ethernet & CAN 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
DS80C411-FNY+	功能描述:8位微控制器 -MCU Network MCU w/Ethernet & CAN 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
DS80CH11	制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:System Energy Manager

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