參數(shù)資料
型號： FDC37C666GT
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 存儲(chǔ)控制器/管理單元
英文描述： High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
中文描述： 1 Mbps, IDE COMPATIBLE, FLOPPY DISK DRIVE CONTROLLER, PQFP100
封裝： QFP-100
文件頁數(shù)： 117/152頁
文件大?。?/td> 621K
代理商： FDC37C666GT
117
CONFIGURATION
The configuration of the FDC37C665GT within
the user system is selected through software
selectable configuration registers. The different
configurations of the FDC37C666GT can be
selected through a combination of jumper
options and software.
FDC37C665GT
REGISTERS
CONFIGURATION
The configuration registers are used to select
programmable options of the FDC. After power
up, the FDC is in the default mode. The default
modes are identified in the Configuration Mode
Register
Description.
configuration registers, the following sequence
must be followed:
To
program
the
1.Enter Configuration Mode.
2.Configure FDC Registers.
3.Exit Configuration Mode.
Enter Configuration Mode
To enter the configuration mode of the
FDC37C665GT, two writes in succession to port
3F0H with 55H data are required. If a write to
another
address
or
port
occurs
between these two writes, the chip does not
enter the configuration mode. It is strongly
recommended that interrupts be disabled for the
duration of these two writes.
Configure FDC37C665GT
The
configuration registers, CR0-CRF. These
registers are accessed by first writing the
number (0-F) of the desired register to port
3F0H and then writing or reading the
configuration register through port 3F1H.
FDC37C665GT
contains
SIXTEEN
Exit Configuration Mode
The configuration mode is exited by writing an
AAH to port 3F0H.
Programming Example
The following is an example of a configuration
program in Intel 8086 assembly language. For
this example, the FDC37C665GT is being reset
to the default condition after power up.
相關(guān)PDF資料
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FDC37C669-MS 功能描述:輸入/輸出控制器接口集成電路 Super I/O Controller- Pb Free RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
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