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| 型号： | DS80C410-FNY+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 77/102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 |
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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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