參數(shù)資料
型號: 101-0575
廠商: Rabbit Semiconductor
文件頁數(shù): 100/106頁
文件大?。?/td> 0K
描述: COMPUTER SNGLBD BL2500 256K FLSH
標(biāo)準(zhǔn)包裝: 25
系列: SBC
模塊/板類型: 單板計(jì)算機(jī)模塊
適用于相關(guān)產(chǎn)品: BL2500
User’s Manual
87
D.2 Physical Implementation
There are four signaling functions associated with a RabbitNet connection. From the mas-
ter’s point of view, the transmit function carries information and commands to the periph-
eral card. The receive function is used to read back information sent to the master by the
peripheral card. A clock is used to synchronize data going between the two devices at high
speed. The master is the source of this clock. A slave select (SS) function originates at the
master, and when detected by a peripheral card causes it to become selected and respond
to commands received from the master.
The signals themselves are differential RS-422, which are series-terminated at the source.
With this type of termination, the maximum frequency is limited by the round-trip delay
time of the cable. Although a peripheral card could theoretically be up to 45 m (150 ft)
from the master for a data rate of 1 MHz, Rabbit recommends a practical limit of 10 m
(33 ft).
Connections between peripheral cards and masters are done using standard 8-conductor
Ethernet cables. Masters and peripheral cards are equipped with RJ-45 8-pin female con-
nectors. The cables may be swapped end for end without affecting functionality.
D.2.1 Control and Routing
Control starts at the master when the master asserts the slave select signal (SS). Then it
simultaneously sends a serial command and clock. The first byte of a command contains
the address of the peripheral card if more than one peripheral card is connected.
A peripheral card assumes it is selected as soon as it receives the select signal. For direct
master-to-peripheral-card connections, this is as soon as the master asserts the select sig-
nal. The connection is established once the select signal reaches the addressed slave. At
this point communication between the master and the selected peripheral card is estab-
lished, and data can flow in both directions simultaneously. The connection is maintained
so long as the master asserts the select signal.
相關(guān)PDF資料
PDF描述
20-101-0526 COMPUTER SNGLBD LP3510 FOX7.4MHZ
101-0526 COMPUTER SNGLBD LP3510 FOX7.4MHZ
101-0576 COMPUTER SNGLBD BL2510 256K FLSH
20-101-1055 MODULE RABBITCORE RCM3375
20-101-0434 MODULE RABBITCORE RCM2100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
101-0576 功能描述:單板計(jì)算機(jī) BL2510 RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲容量:2 GB (max) 存儲類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
101-0577 功能描述:開發(fā)板和工具包 - 其他處理器 Programmers, Development Systems General Embedded Dev Boards and Kits (MCU, DSP, FPGA, CPLD) - KIT DEV FOR BL2500 COYOTE RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101-0578 功能描述:開發(fā)板和工具包 - 其他處理器 BL25/OEM2500 DEVKIT INTERNTIONAL RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101-0580 功能描述:子卡和OEM板 RabbitLink Card RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
10-105808-02P 制造商:Amphenol Aerospace 功能描述:PLUG