參數(shù)資料
型號(hào)： 20-101-1197
廠商： Rabbit Semiconductor
文件頁數(shù)： 95/168頁
文件大?。?/td> 0K
描述： MODULE RABBITCORE RCM3910 ROHS
標(biāo)準(zhǔn)包裝： 1
系列： RabbitCore®
模塊/板類型： MPU 核心模塊
適用于相關(guān)產(chǎn)品： RCM3910
RabbitCore RCM3900 User’s Manual
32
4.1.1 Memory I/O Interface
The Rabbit 3000 address lines (A0–A18) and all the data lines (D0–D7) are routed
internally to the onboard flash memory and SRAM chips. I/O write (/IOWR) and I/O read
(/IORD) are available for interfacing to external devices—pay attention to the loading on
these two signals if you use them since these signals are also used by the RCM3900.
Parallel Port A can also be used as an external I/O data bus to isolate external I/O from the
main data bus. Parallel Port B pins PB2–PB7 can also be used as an auxiliary address bus.
When using the external I/O bus for a digital output or the LCD/keypad module on the
Prototyping Board, or for any other reason, you must add the following line at the begin-
ning of your program.
#define PORTA_AUX_IO
// required to enable auxiliary I/O bus
4.1.2 LEDs
The RCM3900 has three Ethernet status LEDs located beside the RJ-45 Ethernet jack—
these are discussed in Section 4.2.2.
Additionally, there is one dual LED DS4. PD1 on the Rabbit 3000’s Parallel Port D is used
to enable the NAND flash on the RCM3900 model, but is connected to the green CE LED
at DS4, which is not used. The red BSY LED at DS4 is a user-programmable LED, and is
controlled by PD0. The CONTROLLEDS.C and FLASHLEDS.C sample programs in the
Dynamic C SAMPLES\RCM3900 folder show how to set up and use this user-
programmable LED.
4.1.3 Other Inputs and Outputs
The status, /RESET_IN, SMODE0, and SMODE1 I/O are normally associated with the
programming port. Since the status pin is not used by the system once a program has been
downloaded and is running, the status pin can then be used as a general-purpose CMOS
output. The programming port is described in more detail in Section 4.2.3.
/RESET_IN is an external input used to reset the Rabbit 3000 microprocessor and the
RCM3900 onboard peripheral circuits. /RES is an output from the reset circuitry that can
be used to reset external peripheral devices.
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20-101-1198 功能描述:程序設(shè)計(jì)器配件 Programmers, Development Systems Accessories - CARD EXPANSION RN1400 ROHS RoHS:否 制造商:Lattice 產(chǎn)品:ispDOWNLOAD Cables 用于:In-system Programming
20-101-1200 功能描述:子卡和OEM板 UNIVERSAL RELAY EXP BOARD RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
20-101-1201 功能描述:程序設(shè)計(jì)器配件 USB PROG CBL WITH 2MM CONN RoHS:否 制造商:Lattice 產(chǎn)品:ispDOWNLOAD Cables 用于:In-system Programming
20-101-1202 功能描述:WiFi/802.11模塊 RCM4400W CORE MODULE Wi-Fi/802.11 RoHS:否 制造商:Taiyo Yuden 支持協(xié)議:802.11 b/g/n 頻帶: 數(shù)據(jù)速率:150 Mbps 接口類型:SDIO 傳輸功率（最大）: 天線連接器類型: 工作電源電壓:3.4 V to 5.5 V 傳輸供電電流: 接收供電電流: 最大工作溫度:+ 80 C 尺寸:35 mm x 15 mm x 2.9 mm
20-101-1207 功能描述:Zigbee/802.15.4模塊 RF/IF and RFID RF Evaluation & Development Kits & Boards - RCM4510W FCC CERTIFIED RoHS:否 制造商:Digi International 頻帶:902 MHz to 928 MHz 視線范圍: 數(shù)據(jù)速率: 靈敏度: 工作電源電壓:2.4 V to 3.6 V 傳輸供電電流:215 mA 接收供電電流:26 mA 輸出功率:250 mW 天線連接器類型:Wire 最大工作溫度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm
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