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): 18/164頁
文件大小: 621K
代理商: 37C669
114
INTEGRATED DRIVE ELECTRONICS INTERFACE
The IDE interface enables hard disks with
embedded controllers (AT and XT) to be
interfaced to the host processor. The following
definitions are for reference only.
These
registers
are
not
implemented
in
the
FDC37C669.
Access to these registers is
controlled by the FDC37C669.
For more
information, refer to the IDE pin descriptions
and the ATA specification.
HOST FILE REGISTERS
The HOST FILE REGISTERS are accessed by
the AT Host, rather than the Local Processor.
There are two groups of registers, the AT Task
File, and the Miscellaneous AT Registers.
ADDRESS (CR21) Base +[0:7]
These AT registers contain the Task File
Registers. These registers communicate data,
command, and status information with the AT
host, and are addressed when nHDCS0 is low.
ADDRESS (CR22) Base +6
This AT register may be used by the BIOS for
drive control. It is accessed by the AT interface
when nHDSC1 is active.
Figure 2 shows the AT Host Register Map of
the FDC37C669.
REGISTER ADDRESS
(CR21) IDE BASE I/O
ADDRESS +[0:7]
TASK FILE REGISTERS
(CR22) BASE I/O
ADDRESS +6
MISC AT REGISTER
FIGURE 2 - HOST PROCESSOR REGISTER ADDRESS MAP (AT MODE)
TASK FILE REGISTERS
Task File Registers may be accessed by the
host AT when pin nHDCS0 is active (low). The
Data Register (1F0H) is 16 bits wide; the
remaining task file registers are 8 bits wide. The
task
file
registers
are
ATA
and
EATA
compatible. Please refer to the ATA and EATA
specifications. These are available from:
Global Engineering
2805 McGaw Street
Irvine, CA 92714
(800) 854-7179
(714) 261-1455
相關(guān)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(guān)代理商/技術(shù)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: