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參數(shù)資料
| 型號： | DS80C411-FNY+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 77/102頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 75MHZ 16MB HP 100-LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)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(wǎng)，SIO，UART/USART |
| 外圍設(shè)備： | 電源故障復(fù)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
76 of 102
Serial Loader
The serial loader function implemented by the firmware can be invoked by leaving the serial loader pin (P1.7) at
logic 1 during the boot sequence. When this condition is found, the ROM monitors the RXD0 pin for reception of
the <CR> character (0Dh) at a supported baud rate. The serial loader function uses hardware serial port 0 in mode
1 (asynchronous, one start bit, eight data bits, no parity, and one stop bit in full duplex). The serial loader can
automatically detect certain baud rates and configure itself to that speed. The equation below is used to calculate
the nearest integer-reload value for Timer 2 (used for serial port 0 baud rate generation) based on the external
clock frequency and desired baud rate. The calculated (nearest integer) RCAP2H, RCAP2L reload value may not
result in an exact baud rate match. The calculated reload value and clock frequency can be used in the equation to
solve for the baud rate configurable by the DS80C410. It is advised that the baud rate mismatch be no greater than
±2.5% to maintain reliable communication. The functionality was designed to work for clock rates from 3.680MHz to
75.000MHz and baud rates from 2400 to 115,200.
RCAP2H, RCAP2L = 65,536 -
Rate
Baud
x
32
Frequency
Clock
Oscillator
For example, suppose an 18MHz crystal is being used and a 19,200 baud rate is desired. The above equation
yields a nearest integer reload value of FFE3h. This reload value results in a true baud rate of 19396.6 (+1% error).
Once a supported baud rate has been detected, the DS80C410 transmits an ASCII text banner containing
copyright information and prompt for command entry. At this point, the user can issue any of the supported serial
loader commands. A summary of the supported serial loader commands can be seen in Table 15. A detailed
description of each command and further information pertaining to the serial loader can be found in the High-Speed
Microcontroller User’s Guide: Network Microcontroller Supplement.
Table 15. Serial Loader Command Summary
COMMAND
FUNCTION
B
Bank select
C
CRC-16 of memory range
D
Dump Intel hex data from selected bank
E
Exit the loader and try to execute code
F
Fill selected bank memory with hex data
G
Go: Start executing code at offset 0 in the current bank
H, ?
Help: Display ROM version and current bank
L
Load Intel hex into memory
N
NetBoot
V
Verify memory against incoming hex
T2
Enable clock doubler
T8
Enable/Disable load of internal 64kByte RAM
X
Execute code at a given offset in the current bank
Z
Zap: Erase/clear the current bank.
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相關(guān)代理商/技術(shù)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(shí)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(fēng)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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