參數(shù)資料
型號: 37C669
廠商: SMSC Corporation
英文描述: DIODE SCHOTTKY SINGLE 25V 200mW 0.5V-vf 200mA-IFM 30mA-IF 2uA-IR SOD-323 3K/REEL
中文描述: 電腦98/99順從超級I / O軟盤控制器與紅外線支持
文件頁數(shù): 133/164頁
文件大?。?/td> 621K
代理商: 37C669
70
their default values.
A status byte is returned
immediately after issuing a LOCK command.
This byte reflects the value of the LOCK bit set
by the command byte.
ENHANCED DUMPREG
The
DUMPREG
command
is
designed
to
support
system
run-time
diagnostics
and
application software development and debug.
To accommodate the LOCK command and the
enhanced PERPENDICULAR MODE command
the eighth byte of the DUMPREG command has
been modified to contain the additional data
from these two commands.
COMPATIBILITY
The FDC37C669 was designed with software
compatibility in mind. It is a fully backwards-
compatible solution with the older generation
765A/B
disk
controllers.
The
FDC
also
implements on-board registers for compatibility
with the PS/2, as well as PC/AT and PC/XT,
floppy
disk
controller
subsystems.
After
a
hardware reset of the FDC, all registers,
functions and enhancements default to a PC/AT,
PS/2 or PS/2 Model 30 compatible operating
mode, depending on how the IDENT and MFM
bits are configured by the system bios.
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