国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數資料
型號: W83977CTF
廠商: WINBOND ELECTRONICS CORP
英文描述: Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器)
中文描述: 多功能I / O端口控制器(用于個人計算機的多功能輸入/輸出口控制器)
文件頁數: 99/161頁
文件大小: 1530K
代理商: W83977CTF
W83977EF/ CTF
PRELIMINARY
Publication Release Date: March 1999
-90 -
Revision A1
8.0
PLUG AND PLAY CONFIGURATION
The W83977EF/CTF uses Compatible PNP protocol to access configuration registers for setting up
different types of configurations. In W83977EF/CTF, there are nine Logical Devices (from Logical
Device 0 to Logical Device A, with the exception of logical device 4 and 6 for compatibility) which
correspond to nine individual functions: FDC (logical device 0), PRT (logical device 1), UART1
(logical device 2), UART2 (logical device 3), KBC (logical device 5), CIR (logical device 6)
(For
W83977CTF only)
, GPIO1 (logical device 7), GPIO2 (logical device 8), and ACPI ((logical device A).
Each Logical Device has its own configuration registers (above CR30). Host can access these
registers by writing an appropriate logical device number into logical device select register at CR7.
8.1
Compatible PnP
8.1.1 Extended Function Registers
In Compatible PnP, there are two ways to enter Extended Function and read or write the configuration
registers. HEFRAS (CR26 bit 6) can be used to select one out of these two methods of entering the
Extended Function mode as follows:
HEFRAS
address and value
0
write 87h to the location 3F0h twice
1
write 87h to the location 370h twice
相關PDF資料
PDF描述
W83977TF Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器)
W83C42 Keyboard Controller(鍵盤控制器)
W83C43 Keyboard Controller(鍵盤控制器)
W83C45 Keyboard Controller(鍵盤控制器)
W83C553F SYSTEM I/O CONTROLLER WITH PCI ARBITER
相關代理商/技術參數
參數描述
W83977CTF-AW 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PERIPHERAL (MULTIFUNCTION) CONTROLLER
W83977CTF-PW 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83977EF 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND ISA I/O
W83977EF-AW 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND ISA I/O
W83977EF-PW 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O