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): 75/164頁
文件大?。?/td> 621K
代理商: 37C669
18
FLOPPY DISK CONTROLLER
The Floppy Disk Controller (FDC) provides the
interface between a host microprocessor and
the floppy disk drives. The FDC integrates the
functions of the Formatter/Controller, Digital
Data Separator, Write Precompensation and
Data Rate Selection logic for an IBM XT/AT
compatible FDC.
The true CMOS 765B core
guarantees 100% IBM PC XT/AT compatibility
in addition to providing data overflow and
underflow protection.
The
FDC37C669
is
compatible
to
the
82077AA using SMSC's proprietary floppy disk
controller core.
FLOPPY
DISK
CONTROLLER
INTERNAL
REGISTERS
The
Floppy
Disk
Controller
contains
eight
internal registers which facilitate the interfacing
between the host microprocessor and the disk
drive. Table 2 shows the addresses required to
access these registers. Registers other than the
ones shown are not supported. The rest of the
FDC description assumes the Base I/O Address
is 3F0.
Table 2 - Status, Data and Control Registers
BASE I/O
ADDRESS
REGISTER
+0
+1
+2
+3
+4
+5
+6
+7
R
R/W
R
W
R/W
R
W
Status Register A
Status Register B
Digital Output Register
Tape Drive Register
Main Status Register
Data Rate Select Register
Data (FIFO)
Reserved
Digital Input Register
Configuration Control Register
SRA
SRB
DOR
TSR
MSR
DSR
FIFO
DIR
CCR
For information on the floppy disk on Parallel Port pins, refer to Configuration Register CR4
and Parallel Port Floppy Disk Controller description.
相關PDF資料
PDF描述
37C672 ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C67X ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C957FR ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS
37FMA1-ABW31N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 0.2A, 24VDC, PANEL MOUNT-THREADED
37FML1-BEW31N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 0.2A, 24VDC, PANEL MOUNT-THREADED
相關代理商/技術參數(shù)
參數(shù)描述
37C672 制造商:SMSC 制造商全稱:SMSC 功能描述:ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C67X 制造商:SMSC 制造商全稱:SMSC 功能描述:ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C-6BH-5-5 制造商:Birtcher Products 功能描述:
37C72U-185 制造商:White-Rodgers 功能描述:
37C73U-170 制造商:White-Rodgers 功能描述: