| На главную | | | О компании | | | Оборудование | | | Проекты | | | Новости | | | Контакты | | | Семинары | | | Форум |
 |
 |
 |
 |
 |
 |
 |
 |
Микропроцессоры
Rabbit 5000 Microprocessors
Description
The Rabbit 5000 is the next generation of Rabbit microprocessors designed specifically for embedded control, communications, and network connectivity. The Rabbit 5000 is the first Rabbit microprocessor to have 16-bit internal bus architecture, Rabbit 5000 Microprocessor Architecture * Up to 100 MHz operation* Support for up to 16 MB of memory * 24-bit address bus, 8-bit or 16-bit data bus * 128 KB of internal high-speed 16-bit SRAM * 1.8 V core and 3.3 V I/O * 8 DMA channels * 6 serial ports The Rabbit 5000 provides two options for network connectivity — a full 10/100Base-T Ethernet MAC with a standard MII PHY interface, and a wireless 802.11b/g MAC compatible with several standard Wi-Fi transceivers. Rabbit 5000 Microprocessor Features The Rabbit 5000 contains an 802.11b/g wireless MAC peripheral that includes support for all standard Wi-Fi features, including infrastructure and ad-hoc modes. The high-speed internal A/D converter and D/A converter and clocked-serial control port provide a generic interface to several common Wi-Fi transceivers. A low-speed A/D converter is also available to monitor the transmit signal strength if desired. The two A/D converters and single D/A converter are available for customer use when the Wi-Fi peripheral is disabled. The Rabbit 5000 offers many specialized peripherals, including: * Eight channels of DMA access to internal or external memory, internal I/O addresses, and the external I/O bus Two input capture channels each with a 16-bit counter used for a variety of functions such as measuring pulse widths, or for baud rate auto-detection* Two quadrature decoder channels which provide a direct interface to optical encoder units * Four independent pulse width modulator (PWM) outputs, which can drive devices such as motors or solenoids, or can be filtered to create a 10-bit D/A converter The Rabbit 5000 also provides support for protected operating systems. Support for two levels of operation - known as system and user modes - allow application-critical code to operate in safety while user code is prevented from inadvertently disturbing the setup of the processor. Memory blocks as small as 4 KB can be write-protected against accidental writes by user code, and stack over/underflows can be trapped by high-priority interrupts. Security features are also available in the Rabbit 5000. Portions of the new instruction set were introduced to increase encryption algorithm speeds dramatically, and 32 bytes of battery-backed RAM can store an encryption key away from prying eyes. Basic SpecificationsTwo versions of the Rabbit 5000 are available—the standard 289-ball BGA and a compact 196-ball BGA for specialty Wi-Fi applications. The larger package is intended for most Rabbit applications; the smaller package has specific features and limitations, and is not presently offered for sale. If you need further information, please contact your Rabbit sales representative. 
| ||||||
| ▲ В начало |
