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參數資料
| 型號： | W90210F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | PA-RISC Embedded Micro-Controller(惠普PA-RISC結構的32位嵌入式微控制器) |
| 中文描述： | 32-BIT, MROM, RISC MICROCONTROLLER, PQFP208 |
| 封裝： | PLASTIC, QFP-208 |
| 文件頁數： | 6/67頁 |
| 文件大小： | 297K |
| 代理商： | W90210F |
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W90210F
6
Version 1.4, 10/8/97
The above information is the exclusive intellectual property of Winbond Electronics Corp. and shall not be disclosed, distributed or reproduced without permssion fromWinbond.
2. Features
Main features of the W90210F
PA-RISC architecture
PA-RISC 1.1 third edition instruction set
PA-RISC level zero implementation
Support PA-RISC Multimedia Extension 1.0 instruction set
W90K binary compatible for user software
High-performance implementation
Five-stage pipeline
Precise, efficient handling of pipeline stalls and exceptions
Delayed branch with static branch prediction
Forward: not taken
Backward: taken
One-cycle stall when prediction is wrong
HIT under miss
Both load and store can be queued when miss
Load/store single cycle execution after previous miss
On-chip cache memory
Internal I-cache: Direct mapped, 4 KB cache (256 entries, four words/entry)
Wrap around fetching when cache miss
Cache freeze capability
Internal D-cache: 2-way set associative, 2 KB cache (2
Write-back cache with write buffer
Write-through option
New line send to CPU before dirty line write back
Enhanced debug capability
Debug SFU supports both instruction breakpoints and data breakpoints
High on-chip integration and simple I/O interface
486-like bus interface for CPU core
Memory controller to support four banks of DRAM and ROM/FLASH ROM
2-channel 8-bit DMA controller
PCI bridge
Two Serial ports with FIFO
Extended Capabilities Port (ECP)
Two 24-bit timer/counters
Power Down mode
Provide power down mode for power saving operation
64 entries, four words/entry)
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