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參數(shù)資料
| 型號(hào)： | SYM53C770 |
| 廠商： | LSI Corporation |
| 英文描述： | SCSI I/O Processor With Ultra SCSI(帶超級(jí)SCSI的SCSI I/O處理器) |
| 中文描述： | 的SCSI I / O處理器與超的SCSI（帶超級(jí)的SCSI的的SCSI的I / O處理器） |
| 文件頁(yè)數(shù)： | 2/2頁(yè) |
| 文件大?。?/td> | 73K |
| 代理商： | SYM53C770 |
Expanded handshake-to-handshake and general purpose timers to include a scale
factor to increase the length of time before these timers expire
Features and Benefits
Performance
Performs SCSI Fast-20 data transfers up to:
40 MB/s synchronous (16-bit)
20 MB/s synchronous (8-bit)
Functions as full 32-bit DMA bus master
Additional 4 KB SCRIPTS internal RAM
96-byte DMA FIFO for improved throughput between the host and SCSI bus
SCSI offset increased to 16 transfers
32 additional scratchpad registers for user-defined functions
Ease-Of-Use
Pin-for-pin replacement for SYM53C720
Minimal software and hardware modifications required for Fast-20 support
Allows migration of existing SYM53C7XX SCRIPTS
Handshake-to-handshake and general purpose timers include a scale factor to
increase amount of time before timers expire
Flexibility
Internal SCSI clock doubler allows use of a 40/50MHz oscillator with Fast-20 transfer
modes
SCSI Selected as ID Register
High-level programming interface (SCSI SCRIPTS)
Allows tailored SCSI sequences to be executed from main memory
Accommodates changes in the logical I/O interface definition
Symbios, SCRIPTS, and TolerANT are trademarks of Symbios Inc.
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