900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




National Semiconductor Electronic Components Datasheet

PC97307 Datasheet

PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O

No Preview Available !

PRELIMINARY
March 1998
PC87307/PC97307 Plug and Play Compatible and PC97
Compliant SuperI/O
Highlights
General Description
The PC87307/PC97307 (VUL) are functionally identical
parts that offer a single-chip solution to the most commonly
used ISA, EISA and MicroChannel® peripherals. This fully
Plug and Play (PnP) compatible chip incorporates a Floppy
Disk Controller (FDC), a Keyboard and mouse Controller
(KBC), a Real-Time Clock (RTC), two fast full function
UARTs, Infrared (IR) support, a full IEEE 1284 parallel port,
three general purpose chip select signals that can be pro-
grammed for game port control, and a separate configura-
tion register set for each module. It also provides support for
power management (including a WATCHDOG timer) and
standard PC-AT address decoding for on-chip functions.
The Plug and Play (PnP) support in the device conforms to
the “Plug and Play ISA Specification” Version 1.0a, May 5,
1994.
The Infrared (IR) interface complies with the IrDA 1.0 SIR
and SHARP-IR standards, and supports all four basic pro-
tocols for Consumer-IR (TV-Remote) circuitry (RC-5, RC-5
extended, RECS80 and NEC).
Features
s 100% compatible with Plug and Play requirements
specified in the “Plug and Play ISA Specification”, ISA,
EISA, and MicroChannel architectures
s Meets PC97 requirements
Block Diagram
DMA
IRQ Channels
Control
Serial Infrared
Data Control Interface Interface Interrupt
Real-Time Clock
Plug and Play (RTC and APC)
(PnP)
(Logical Device 2)
X-Bus
µP Address
Data and
Control
Two UARTs + IR
(16550 or 16450)
(Logical Devices 5 & 6)
Floppy Disk
Controller (FDC)
with Digital Data
Separator (DDS)
(PC8477)
Floppy
Drive
Interface
(Logical Device 3)
Keyboard
Controller (KBC)
(Logical Device 0)
Power Management
Logic
(Logical Device 8)
IEEE1284
Parallel Port
(Logical Device 4)
High Current Driver
Mouse
Controller
(Logical Device 1)
General Purpose
I/O Registers
(Logical Device 7)
Data and Ports
Control
Control
Data Handshake
Data and
Control
I/O Ports
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
IBM®, MicroChannel®, PC-AT® and PS/2® are registered trademarks of International Business Machines Corporation.
Microsoft® and Windows® are registered trademarks of Microsoft Corporation.
© 1998 National Semiconductor Corporation
www.national.com


National Semiconductor Electronic Components Datasheet

PC97307 Datasheet

PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O

No Preview Available !

Highlights
s A special Plug and Play (PnP) module that includes:
Flexible IRQs, DMAs and base addresses that meet
the Plug and Play requirements specified by Mi-
crosoft® in their 1995 hardware design guide for
Windows® and Plug and Play ISA Revision 1.0A
Plug and Play ISA mode (with isolation mechanism
– Wait for Key state)
Motherboard Plug and Play mode
s A Floppy Disk Controller (FDC) that provides:
A modifiable address that is referenced by a 16-bit
programmable register
Software compatibility with the PC8477, which con-
tains a superset of the floppy disk controller func-
tions in the µDP8473, the NEC µPD765A and the
N82077
13 IRQ channel options
Four 8-bit DMA channel options
16-byte FIFO
Burst and non-burst modes
A high-performance, internal, digital data separator
that does not require any external filter components
Support for standard 5.25" and 3.5" floppy disk
drives
Automatic media sense support
Perpendicular recording drive support
Three-mode Floppy Disk Drive (FDD) support
Full support for the IBM Tape Drive Register (TDR)
implementation of AT and PS/2 drive types
s A Keyboard and mouse Controller (KBC) with:
A modifiable address that is referenced by a 16-bit
programmable register, reported as a fixed address
in resource data
13 IRQ options for the keyboard controller
13 IRQ options for the mouse controller
An 8-bit microcontroller
Software compatibility with the 8042AH and
PC87911 microcontrollers
2 KB of custom-designed program ROM
256 bytes of RAM for data
Five programmable dedicated open drain I/O lines
for keyboard controller applications
Asynchronous access to two data registers and one
status register during normal operation
Support for both interrupt and polling
93 instructions
An 8-bit timer/counter
Support for binary and BCD arithmetic
Operation at 8 MHz,12 MHz or 16 MHz (programma-
ble option)
Can be customized using the PC87323VUL, which
includes a RAM-based KBC, as a development plat-
form for keyboard controller code
s A Real-Time Clock (RTC) that has:
A modifiable address that is referenced by a 16-bit
programmable register
13 IRQ options, with programmable polarity
DS1287, MC146818 and PC87911 compatibility
242 bytes of battery backed up CMOS RAM in two
banks
Selective lock mechanism for the RTC RAM
Battery backed up century calendar in days, days of
the week, months and years, with automatic leap-
year adjustment
Battery backed-up time of day in seconds, minutes
and hours that allows a 12 or 24 hour format and ad-
justments for daylight savings time
BCD or binary format for time keeping
Three different maskable interrupt flags:
Periodic interrupts - At intervals from 122 msec
to 500 msec
Time-of-day alarm - At intervals from once per
second to once per day
Updated Ended Interrupt - Once per second
upon completion of update
Separate battery pin, 2.4 V operation that includes
an internal UL protection resistor
2 µA maximum power consumption during power
down
Double-buffer time registers
s An Advanced Power supply Control (APC) that controls
the main power supply to the system, using open-drain
output, as follows:
Power turned on when:
The RTC reaches a pre-determined date and time.
A high to low transition occurs on the RI input signals
of the UARTs.
A ring pulse or pulse train is detected on the RING
input signal.
A SWITCH input signal indicates a Switch On event
Powered turned off when:
A SWITCH input signal indicates a Switch Off event
A Fail-safe event occurs (power-save mode detect-
ed but the system is hung up).
Software turns power off.
s Two UARTs that provide:
Software compatibility with the 16550A and the
16450
A modifiable address that is referenced by a 16-bit
programmable register
13 IRQ channel options
Shadow register support for write-only bits
Four 8-bit DMA options for the UART with Infrared
support (UART2)
s An enhanced UART and Infrared (IR) interface on the
UART2 that supports:
UART data rates up to 1.5 Mbaud
IrDA 1.0 SIR
ASK-IR option of SHARP-IR
DASK-IR option of SHARP-IR
Consumer-IR (TV-Remote) circuitry
A Plug and Play compatible external transceiver
s A bidirectional parallel port that includes:
A modifiable address that is referenced by a 16-bit
programmable register
www.national.com
2


Part Number PC97307
Description PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
Maker National Semiconductor
PDF Download

PC97307 Datasheet PDF






Similar Datasheet

1 PC97307 PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
National Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy