參數資料
型號: 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伏先進的高性能多模并口超級I / O軟盤與Infranred支持磁盤控制器
文件頁數: 115/162頁
文件大?。?/td> 562K
代理商: FDC37C665IR
115
UART Power Management
Direct power management is controlled by CR2
bits 3 and 7. Refer to CR2 bits 3 and 7 for more
information.
Auto Power Management is enabled by CR7 bits
5 and 6. When set, these bit allows the
following auto power management operations:
1.
The transmitter enters auto powerdown
when the transmit buffer and shift register
are empty.
2.
The receiver enters powerdown when the
following conditions are all met:
a.
b.
Receive FIFO is empty
The receiver is waiting for a start bit.
Note:
While in powerdown the Ring Indicator
interrupt is still valid and transitions
when the RI input changes.
Exit Auto Powerdown
The transmitter exits powerdown on a write to
the XMIT buffer. The receiver exits auto
powerdown when RXDx changes state.
Parallel Port
Direct power management is controlled by CR1
bit 2. Refer to CR1 bit 2 for more information.
Auto Power Management is enabled by CR7 bit
4. When set, this bit allows the ECP or EPP
logical parallel port blocks to be placed into
powerdown when not being used.
The EPP logic is in powerdown under any of the
following conditions:
1.
EPP is not enabled in the configuration
registers.
2.
EPP is not selected through ecr while in
ECP mode.
The ECP logic is in powerdown under any of the
following conditions:
1.
ECP is not enabled in the configuration
registers.
2
SPP, PS/2 Parallel port or EPP mode is
selected through ecr while in ECP mode.
Exit Auto Powerdown
The parallel port logic can change powerdown
modes when the ECP mode is changed through
the ecr register or when the parallel port mode is
changed through the configuration registers.
相關PDF資料
PDF描述
FDC37C665GT High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
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相關代理商/技術參數
參數描述
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