|
|
| 名称： 三星的S3C44B0X中文数据手册.doc47 |
|
| 所属分类： 人事制度表格 |
| 下载要求： 1学币或VIP (学币和VIP购买说明) |
| 总计下载： 次 |
| 文件大小： 641 KB |
| 更新时间： 2007-5-6 8:32:19 |
| 三星的S3C44B0X中文数据手册.doc47下载地址 |
|
|
|
| ::三星的S3C44B0X中文数据手册.doc47电子书简介:: |
三星的S3C44B0X中文数据手册.doc47简介开始
1产品预览
介 绍
三星的S3C44B0X 16/32位RISC处理器被设计来为手持设备等提供一个低成本高性能的方案。
S3C44B0X提供以下配置：2.5V ARM7TDMI 内核带有8Kcache ;可选的internal SRAM;LCD Controller(最大支持256色STN，使用LCD专用DMA)；2-ch UART with handshake(IrDA1.0, 16-byte FIFO) / 1-ch SIO； 2-ch general DMAs / 2-ch peripheral DMAs with external request pins； External memory controller (chip select logic, FP/ EDO/SDRAM controller)； 5-ch PWM timers & 1-ch internal timer；Watch Dog Timer；71 general purpose I/O ports / 8-ch external interrupt source； RTC with calendar function； 8-ch 10-BIt ADC； 1-ch multi-master IIC-BUS controller； 1-ch IIS-BUS controller； Sync. SIO interface and On-chip clock generator with PLL.。
S3C44B0X采用一种新的三星ARM CPU嵌入总线结构-SAMBA2，最大达66MHZ。
电源管理支持：Normal, Slow, Idle, and Stop mode。
系统管理功能：
1 Little/BIg endian support.
2 Address space: 32Mbytes per each bank. (Total 256Mbyte)
3 Supports programmable 8/16/32-BIt data bus width for each bank.
4 Fixed bank start address and programmable bank size for 7 banks.
5 . 8 memory banks.
- 6 memory banks for ROM, SRAM etc.
- 2 memory banks for ROM/SRAM/DRAM(Fast Page, EDO, and Synchronous DRAM)
6. Fully Programmable access cycles for all memory banks.
7 Supports external wait signal to expend the bus cycle.
8. Supports self-refresh mode in DRAM/SDRAM for power-down.
9. Supports asymmetric/symmetric address of DRAM.
Cache 和内部存储器功能:
· 4-way set associative ID(UnifIEd)-cache with 8Kbyte.
· The 0/4/8 Kbytes internal SRAM using unused cache memory.
· Pseudo LRU(Least Recently Used) Replace Algorithm.
· Write through policy to maintain the coherence between main memory and cache content.
· Write buffer with four depth.
· Request data first fill technique when cache miss occurs.
时钟和电源管理
· Low power
· The on-chip PLL makes the clock for operating MCU at maximum 66MHz.
· Clock can be fed selectively to each function block by software.
· Power mode: Normal, Slow, Idle and Stop mode.
Normal mode: Normal operating mode.
Slow mode: Low frequency clock without PLL
Idle mode: Stop the clock for only CPU
Stop mode: All clocks are stopped
· Wake up by EINT[7:0] or RTC alarm interrupt from
idle mode.
三星的S3C44B0X中文数据手册.doc47简介结束,下载后阅读全部内容 |
|
| 
