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參數(shù)資料
| 型號： | PC87311A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PC87311A/PC87312 (SuperI/OTM II/III) Floppy Disk Controller with Dual UARTs, Parallel Port, and IDE Interface |
| 中文描述： | PC87311A/PC87312（腸系膜/價外二/三）軟盤的雙UART，并行端口，和IDE接口磁盤控制器 |
| 文件頁數(shù)： | 1/78頁 |
| 文件大?。?/td> | 879K |
| 代理商： | PC87311A |
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TL/F/11362
P
w
October 1993
PC87311A/PC87312 (SuperI/O
TM
II/III)
Floppy Disk Controller with Dual UARTs,
Parallel Port, and IDE Interface
General Description
The PC87311A/12 incorporates a floppy disk controller
(FDC), two full function UARTs, a bidirectional parallel port,
and IDE interface control logic in one chip. The PC87311A
includes standard AT/XT address decoding for on-chip
functions and a Configuration Register, offering a single
chip solution to the most commonly used IBM
é
PC
é
,
PC-XT
é
, and PC-AT
é
peripherals. The PC87312 includes
standard AT address decoding for on-chip functions and a
Configuration Register set, offering a single chip solution to
the most commonly used ISA, EISA and Micro Channel pe-
ripherals.
The on-chip FDC is software compatible to the PC8477,
which contains a superset of the DP8473 and NEC
m
PD765
and the N82077 floppy disk controller functions. The on-
chip analog data separator requires no external compo-
nents and supports the 4 Mb drive format as well as the
other standard floppy drives used with 5.25
×
and 3.5
×
me-
dia.
In the PC87311A, the UARTs are equivalent to two
INS8250N-Bs or NS16450s. The bidirectional parallel port
maintains complete compatibility with the IBM PC, XT and
AT. In the PC87312 the UARTs are equivalent to two
NS16450s or PC16550s. The bidirectional parallel port
maintains complete compatibility with the ISA, EISA and Mi-
cro Channel parallel ports.
The IDE control logic provides a complete IDE interface ex-
cept for the signal buffers. The Configuration Registers con-
sist of three byte-wide registers. An Index and a Data Regis-
ter which can be relocated within the ISA I/O address space
access the Configuration Registers.
Features
Y
100% compatible with IBM PC, XT, and AT architec-
tures (PC87311A), or ISA, EISA, and Micro Channel ar-
chitectures (PC87312)
Y
FDC:
D Software compatible with the DP8473, the 765A and
the N82077
D 16-byte FIFO (default disabled)
D Burst and Non-Burst modes
D Perpendicular Recording drive support
D High performance internal analog data separator (no
external filter components required)
D Low power CMOS with power down mode
Y
UARTs:
D Software compatible with the INS8250N-B and the
NS16450 (PC87311A), or PC16550A and PC16450
(PC87312)
Y
Parallel Port:
D Bidirectional under either software or hardware
control
D Compatible with all IBM PC, XT and AT architectures
(PC87311A), or all ISA, EISA, and Micro Channel ar-
chitectures (PC87312)
D Back
Voltage
protection
caused when printer is powered up
circuit
against
damage
Y
IDE Control Logic:
D Provides a complete IDE interface except for option-
al buffers
Y
Address Decoder:
D Provides selection of all primary and secondary ISA
addresses including COM 1–4.
Y
100-pin PQFP package
D The PC87311A and PC87312 are pin compatible
Block Diagram
TL/F/11362–1
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation.
SuperI/O
TM
is a trademark of National Semiconductor Corporation.
IBM
é
, PC
é
, PC-AT
é
, PC-XT
é
and PS/2
é
are registered trademarks of International Business Machines Corporation.
C
1995 National Semiconductor Corporation
RRD-B30M75/Printed in U. S. A.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PC87311A/87312 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:(SuperI/O II/III) Floppy Disk Controller wth Dual UARTs Parallel |
| PC87311AVF | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PC87311A/PC87312 (SuperI/OTM II/III) Floppy Disk Controller with Dual UARTs, Parallel Port, and IDE Interface |
| PC87311VF | 制造商:Texas Instruments 功能描述: |
| PC87312 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:(SuperI/O II/III) Floppy Disk Controller with Dual UARTs, Parallel Port, and IDE Interface |
| PC87312VF | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PC87311A/PC87312 (SuperI/OTM II/III) Floppy Disk Controller with Dual UARTs, Parallel Port, and IDE Interface |
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