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參數(shù)資料
| 型號： | TMS279XN |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | FLOPPY DISK FORMATTERICONTROLLER FAMILY |
| 中文描述： | 軟盤驅(qū)動FORMATTERICONTROLLER家庭 |
| 文件頁數(shù)： | 5/40頁 |
| 文件大?。?/td> | 334K |
| 代理商： | TMS279XN |
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TMS279X (WD279X) FLOPPY DISK FORMATTER / CONTROLLER FAMILY
5
functional block diagram
organization
The TMS279X is illustrated in the functional block diagram. The elements that comprise the TMS279X and
the processor and floppy disk interface will be described in the paragraphs that follow.
data shift register
This 8-bit register assembles serial data from the read data input (RAW RD#) during read operations and
transfers serial data to the write data output during write operations.
data register
This 8-bit register is used as a holding register during disk read and write operations. In disk read operations,
the assembled data byte is transferred in parallel to the data register from the data shift register. In disk write
operations, information is transferred in parallel from the data register to the data shift register.
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| TMS27C/PC256-10 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TMS27C256 32768 BY 8-BIT UV ERASABLE TMS27PC256 32768 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES |
| TMS27C/PC256-12 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TMS27C256 32768 BY 8-BIT UV ERASABLE TMS27PC256 32768 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES |
| TMS27C/PC256-15 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TMS27C256 32768 BY 8-BIT UV ERASABLE TMS27PC256 32768 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES |
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| TMS27C/PC256-20 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TMS27C256 32768 BY 8-BIT UV ERASABLE TMS27PC256 32768 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES |
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