 |
|||||||
|
|||||||
|
|
|||||||
|
|||||||
|
|
| mic2211-ppbml资料 | |
|
mic2211-ppbml |
|
file size : 116 kb
manufacturer: description: the st92f124/f150/f250 microcontroller is de- veloped and manufactured by stmicroelectronics using a proprietary n-well hcmos process. its performance derives from the use of a flexible 256-register programming model for ultra-fast con- text switching and real-time event response. the intelligent on-chip peripherals offload the st9 core from i/o and data management processing tasks allowing critical application tasks to get the maxi- mum use of core resources. the new-generation st9 mcu devices now also support low power consumption and low voltage operation for power- efficient and low-cost embedded systems. 1.1.1 st9 core the advanced core consists of the central processing unit (cpu), the register file, the inter- rupt and dma controller, and the memory man- agement unit. the mmu allows a single linear ad- dress space of up to 4 mbytes. four independent buses are controlled by the core: a 22-bit memory bus, an 8-bit register data bus, an 8-bit register address bus and a 6-bit inter- rupt/dma bus which connects the interrupt and dma controllers in the on-chip peripherals with the core. this multiple bus architecture makes the st9 fam- ily devices highly efficient for accessing on and off- chip memory and fast exchange of data with the on-chip peripherals. the general-purpose registers can be used as ac- cumulators, index registers, or address pointers. adjacent register pairs make up 16-bit registers for addressing or 16-bit processing. although the st9 has an 8-bit alu, the chip handles 16-bit opera- tions, including arithmetic, loads/stores, and mem- ory/register and memory/memory exchanges. the powerful i/o capabilities demanded by micro- controller applications are fulfilled by the st92f150/f124 with 48 (64-pin devices) or 77 (100-pin devices) i/o lines dedicated to digital in- put/output and with 80 i/o lines by the st92f250. these lines are grouped into up to ten 8-bit i/o ports and can be configured on a bit basis under software control to provide timing, status signals, an address/data bus for interfacing to the external memory, timer inputs and outputs, analog inputs, external interrupts and serial or parallel i/o. two memory spaces are available to support this wide range of configurations: a combined program/ data memory space and the internal register file, |
|
| 1pcs | 100pcs | 1k | 10k | ||
|
型 号：mic2211-ppbml 厂 家： 封 装：0633 批 号： 数 量：5000 说 明： |
|||||
|
运 费： 所在地： 新旧程度： |
|||||
| 联系人：林浩/林妮 |
| 电 话：0755-82532799/82532766/83989559 |
| 手 机：13510168121/13725556003 |
| qq：496982847/351622092 |
| msn：linearic@hotmail.com |
| 传 真：0755-82532766 |
| email：maxim_zi@126.com |
| 公司地址： 深圳市福田区佳和大厦b座1802室 门市部：华强广场 q2a114展销柜 |
凯发vip的版权所有：深圳市浩兴电子有限公司凯发vip的版权所有 凯发vip的技术支持：维库电子市场网
访问统计：
建议使用分辨率:1024*768 凯发在线网站的友情链接
后台管理
