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STP2001QFP

更新时间： 2024-11-25 23:35:19
品牌 Logo 应用领域
其他 - ETC 控制器时钟
页数 文件大小 规格书
18页 292K
描述
I/O Controller

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STP2001QFP 数据手册

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STP2001.frm Page 1 Monday, August 25, 1997 2:46 PM  
STP2001QFP  
July 1997  
Slave I/O  
Integrated SBus Interface Slave I/O Controller  
DATA SHEET  
DESCRIPTION  
The STP2001Slave I/O Controller is a highly integrated, low-cost, low-power device designed for use in single-processor  
systems with an SBus interface. The STP2001 provides serial I/O for keyboard, mouse and general-purpose use. In addi-  
tion, a floppy disk interface, an external byte-wide expansion bus (EBus) for TOD and EPROM, I/O registers and reset  
control logic are integrated. Together, the STP2001 and the STP2000 Master I/O Controller, provide a complete I/O  
subsystem.  
The two serial ports for keyboard/mouse and general purpose use are compatible with the AMD AM85C30, rev C Serial  
Communications Controller. The TTY A/B serial ports are fully synchronous, while the keyboard/mouse ports are asyn-  
chronous only. All ports support data rates up to 38.4 Kb/s. The NCR82077 floppy disk interface is compatible with the  
Intel 8077A-1 single-chip floppy controller, supporting up to a 1 MBit/sec transfer rate.  
Features  
Benefits  
• Integrates two dual serial controllers, a high-speed  
floppy controller, uniprocessor interrupt, reset, and  
counter/timer circuitry, power-down control and an  
EBus in a single package  
• Saves cost, power, board space, and weight  
• Directly interfaces to CPU through the SBus  
• Improved performance  
• Auxiliary I/O registers (used for LED, floppy and  
system power-down)  
• High level of system integration; ease of design  
• Interrupt Controller for single-processor SBus  
system  
• High level of system integration; ease of design  
• System reset control  
• High level of system integration; ease of design  
• High level of system integration; ease of design  
• Generic 8-bit interface available  
• Improved chip and board level testability  
• Cost effective packaging  
• Counter/timers for single-processor SBus system  
• EBus interface  
• JTAG internal and boundary SCAN logic  
• 160-pin PQFP packaging  
• IC is also available from NCR Corp. (PN -  
NCR89105)  
• Second source  
1
This Material Copyrighted by Its Respective Manufacturer  
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