參數(shù)資料
型號： FDC37C666GT
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 存儲控制器/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)： 22/152頁
文件大小： 621K
代理商： FDC37C666GT
22
FUNCTIONAL DESCRIPTION
SUPER I/O REGISTERS
The address map, shown below in Table 1,
shows the addresses of the different blocks of
the Super I/O immediately after power up. The
base addresses of the FDC, IDE, serial and
parallel
ports
can
configuration registers. Some addresses are
used to access more than one register.
be
moved
via
the
HOST PROCESSOR INTERFACE
The host processor communicates with the
FDC37C665GT/666GT through a series of
read/write registers. The port addresses for
these registers are shown in Table 1. Register
access is accomplished through programmed
I/O or DMA transfers. All registers are 8 bits
wide except the IDE data register at port 1F0H
which is 16 bits wide. All host interface output
buffers are capable of sinking a minimum of 24
mA.
Table 1 - FDC37C665GT/666GT Block Addresses
ADDRESS
BLOCK NAME
Configuration
Floppy Disk
NOTES
3F0, 3F1
3F0, 3F1
Write only; Note 1, 2
Read only; Address at power
up; Note 2
Address at power up; Note 2
Address at power up; Note 2
Address at power up; Note 2
Address at power up; Note 2
AT Mode; Note 2, 3
3F2, 3F3, 3F4, 3F5, 3F7
3F8-3FF
2F8-2FF
278-27A
1F0-1F7, 3F6, 3F7
Floppy Disk
Serial Port Com 1
Serial Port Com 2
Parallel Port
IDE
Note 1: Configuration registers can only be modified in configuration mode, entered only by writing a
security code sequence to 3F0. The configuration registers can only be read in configuration
mode by accessing 3F1. Access to status registers A and B of the floppy disk is disabled in
configuration mode. Outside of configuration mode, a read of 3F0 accesses status register A
and a read of 3F1 accesses status register B of the floppy disk.
Note 2: Address at power up; These addresses can be changed in the configuration setup.
Note 3: Addresses 320H-323H and 3F5-3F7H for XT Mode. Selectable in configuration setup.
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