- 您现在的位置：买卖IC网 > PDF目录11784 > DS80C400-FNY+ (Maxim Integrated Products)IC MCU 75MHZ 16MB HP 100-LQFP PDF资料下载
参数资料
| 型号： | DS80C400-FNY+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 61/97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 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页当前第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页
DS80C400 Network Microcontroller
64 of 97
Transmit/Receive Packet Buffer Memory (8kB)
The DS80C400 Ethernet controller uses 8kB of internal SRAM as transmit/receive packet buffer memory. This
SRAM is read/write accessible as data memory by the CPU using the MOVX instruction. The BCU also has access
to this SRAM, and automatically writes/reads packet buffer memory whenever it needs to store or retrieve Ethernet
packet information. The logical MOVX address range of the 8kB SRAM is determined by the IDM1:0 bits of the
MCON (C6h) SFR. Table 16 shows the available address range settings.
When used for Ethernet packet buffer memory, the 8kB SRAM is logically configured into (32) pages of 64 words
each, where a word consists of 4 Bytes. These 32 pages can be dynamically allocated between Ethernet transmit
and receive buffer memory. The five least significant bits of the Ethernet buffer size (EBS; E5h) SFR specify how
many pages are allocated for receive buffer memory. The remaining pages of the 32 are used as transmit buffer
memory. Note that transmit and receive data packets can span multiple pages. The reset default state of the
Ethernet buffer size select bits (EBS.4–EBS.0) is 00000b, which configures all 32 pages as transmit buffer
memory. As an example, setting EBS.4–EBS.0 = 10000b would result in pages 0–15 (16 pages) being configured
as receive buffer memory and pages 16–31 (16 pages) being configured as transmit buffer memory. A setting of
11111b leaves a single page (page 31) for transmit buffer memory and configures pages 0–30 (31 pages) as
receive buffer memory. Changing the transmit/receive buffer-size settings flush the contents of the receive buffer
and the receive FIFO. Figure 10 is an illustration of the 8kB buffer memory map and addressing scheme.
Table 16. Packet Buffer Memory Location
IDM1:0
(MCON.7, MCON.6)
INTERNAL 8kB SRAM LOCATION
(ETHERNET PACKET BUFFER MEMORY)
00
00E000h–00FFFFh
01
000000h–001FFFh
10
FFE000h–FFFFFFh
11
Reserved
Figure 10. Transmit/Receive Data Buffer Memory
EXAMPLE: PAGE 1, WORD 2, BYTE 3
WORD 2
WORD 63
.
STATUS WORD (WORD 0)
WORD 1
.
PAGE 31
PAGE (n - 2)
PAGE (n - 1)
PAGE n
PAGE 0
PAGE 1
RECEIVE
BUFFER
(n PAGES)
TRANSMIT
BUFFER
(32 - n PAGES)
BUFFER SIZE
SETTING
(EBS.4–EBS.0)
(Per IDM1:0)
PAGE
WORD
BYTE
8kB INTERNAL SRAM
PAGE 1
xxxxxxxx xxx
00001
000010
11
BUFFER MEMORY ADDRESS (24-Bit)
相关PDF资料 |
PDF描述 |
|---|---|
| VE-B43-IX-F1 | CONVERTER MOD DC/DC 24V 75W |
| DS89C450-ENL+ | IC MCU FLASH 64KB 33MHZ 44-TQFP |
| VE-B43-IW-F3 | CONVERTER MOD DC/DC 24V 100W |
| DS89C450-MNL+ | IC MCU FLASH 64KB 33MHZ 40-DIP |
| VE-B43-IW-F2 | CONVERTER MOD DC/DC 24V 100W |
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 |
发布紧急采购，3分钟左右您将得到回复。