參數(shù)資料
型號(hào): FDC37C665IR
廠商: SMSC Corporation
英文描述: 3/5 Volt Advanced High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller with Infranred Support
中文描述: 3 / 5伏先進(jìn)的高性能多模并口超級(jí)I / O軟盤與Infranred支持磁盤控制器
文件頁數(shù): 155/162頁
文件大?。?/td> 562K
代理商: FDC37C665IR
155
The Reverse Data Transfer Phase may be
entered from the Reverse-Idle Phase. After the
previous byte has beed accepted the host sets
HostAck (nAutoFd) low. The peripheral then sets
PeriphClk (nAck) low when it has data to send.
The data must be stable for the specified setup
time prior to the falling edge of PeriphClk. When
the host is ready it to accept a byte it sets.
HostAck (nAutoFd) high to acknowledge the
handshake. The peripheral then sets PeriphClk
(nAck) high. After the host has accepted the
data it sets HostAck (nAutoFd) low, completing
the transfer. This sequence is shown in Figure
23.
Output Drivers
To facilitate higher performance data transfer,
the use of balanced CMOS active drivers for
critical
signals
(Data,
PeriphAck, PeriphClk) are used ECP Mode.
Because the use of active drivers can present
compatibility problems in Compatible Mode (the
control signals, by tradition, are specified as
open-collector), the drivers are dynamically
changed from open-collector to totem-pole. The
timing for the dynamic driver change is specified
in the IEEE 1284 Extended Capabilities Port
Protocol and ISA Interface Standard, Rev.
1.09, Jan. 7, 1993, available from Microsoft.
The
dynamic
driver
implemented properly to prevent glitching the
outputs.
HostAck,
HostClk,
change
must
be
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FDC37C665IRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述:
FDC37C666GT 制造商:SMSC 制造商全稱:SMSC 功能描述:High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
FDC37C669 制造商:SMSC 制造商全稱:SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
FDC37C669_07 制造商:SMSC 制造商全稱:SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
FDC37C669FRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk