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參數(shù)資料
| 型號： | DS80C411-FNY+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 78/102頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 75MHZ 16MB HP 100-LQFP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 90 |
| 系列： | 80C |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 75MHz |
| 連通性： | 1 線，CAN，EBI/EMI，以太網，SIO，UART/USART |
| 外圍設備： | 電源故障復位，WDT |
| 輸入/輸出數(shù)： | 64 |
| 程序存儲器容量： | 64KB（64K x 8） |
| 程序存儲器類型： | ROM |
| RAM 容量： | 64K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.62 V ~ 3.6 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 100-LQFP |
| 包裝： | 托盤 |
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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
Y
N
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| DS80CH11 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:System Energy Manager |
| DS80CH11+E02 | 制造商:Maxim from Components Direct 功能描述:MAXIM DS80CH11+E02 SYSTEM ENERGY MANAGERS - Trays 制造商:Maxim 功能描述:Maxim DS80CH11+E02 System Energy Managers |
| DS80CH11-E02 | 制造商:Maxim from Components Direct 功能描述:MAXIM DS80CH11-E02 SYSTEM ENERGY MANAGERS - Trays 制造商:Maxim 功能描述:Maxim DS80CH11-E02 System Energy Managers |
| DS80E100 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:5 to 12.5 Gbps, Power-Saver Equalizer for Backplanes and Cables |
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