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**82395SX Smart Cache 12/17/90
***Notes:...
**82396SX Smart Cache 12/17/90...
**82485 Turbo Cache (and 485Turbocache) c90...
**82489DX Advanced Programmable Interrupt Controller 10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set <Sep91...
**82495XP/490XP Cache Controller / Cache RAM (for i860) 06/05/91...
**82496/491 Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**82498/493 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX (?) 06/29/98:...
**????? (Profusion) c:99...
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*Winbond...
**W83C553F System I/O Controller With PCI Arbiter c:sep95
***Info:...
***Versions:...
***Features:
High Integration PCI-ISA solution
o Optimized for lowest system cost
o Complies with PCI Revision 2.0 specification
o Universal PCI device supporting x86 and PowerPC (non-x86) modes of
operation
Nand tree on most signal pins to facilitate board level testing in PCB
manufacturing environment
Integrated PCI Bus Master IDE controller
o Dual channel Bus Master IDE for up to 4 peripherals, including hard
drives, ATAPI (IDE) CD-ROMs, tapes, etc.
o Multi-threading capability allows two simultaneous I/O processes
o Independent IDE Timing registers allow fast/slow devices on the
same cable
o Two independent DMA channels for Bus Master scatter/gather DMA
transfers across the PCI bus
o Large 64 byte DMA FIFO for zero wait state PCI burst transfers
o Support for multiword DMA Mode 1 (13.3 MB/s), Mode 2 (16.6 MB/s)
IDE drives
o PIO IDE support for Modes 0-4 disks
o Edge rate controlled outputs directly drive IDE headers
o Four byte pre-fetch and posted write buffers
o DMA channels can be re-configured for P-n-P motherboard devices
o Software and register set compatible with Intel Bus Master PCI-IDE
specification (SFF 8038i)
o Supported by existing device drivers for MS-DOS, Windows, NT 3.1,
NT 3.5x, NT4.0, OS/2 2.1, OS/2 Warp, NetWare 3.12 and 4.x**
o Recompiled PowerPC device drivers also available
>** OS/2, Novell driver by DTC
PCI Arbiter
o Supports CPU, IDE, ISA and five additional bus masters
o Programmable access windows allow fine tuning of PCI access for
each bus master
o Can be disabled on power-up via strapped pin
Power Management Break Event support for Green PC applications
Built-in Integrated Peripheral Controller (IPC) with standard PC-AT
peripherals
o Two 82C37A DMA controllers (types A, B, and F)
- 32-bit addressing allows use of alternate CPUs, such as PowerPC
- supports multiple 8-bit and 16-bit scatter/gather DMA channels
o Two 82C59A interrupt controllers
- all IRQ inputs may be programmed for edge or level sensitivity
o One 82C54 counter/timer
o Routes external PCI interrupts to a software-selectable interrupt
channel
PCI Bus Interface
o PCI Revision 2.1 compliant
o PCI clock frequencies up to 33 MHz at 5V
o Supports delayed completion for ISA cycles
o Active address decoding for internal I/O devices
o Subtractive decoding for ISA bridge, KBC and RTC
o Supports disconnection (with retry) for slow internal accesses to
improve latency
o Short PCI bus ownership when mastering to minimize overall system
latency
o Fast DMA transfers from I/O devices to PCI agents as a master
o Separate request and grant signals for ISA DMA and IDE controllers
ISA Bus Bridge
o Full implementation of a standard ISA bus
o Separate ISA and IDE data buses reduce noise and increase system
performance
o Synchronous PCI-to-ISA interface with direct drive for 5 ISA slots
XD-Bus interface
o Support for BIOS ROM or PowerPC systems boot ROM
o Support for flash EPROM
o Provides keyboard controller connections
o Provides real-time clock connections
o Provides data buffer control
Miscellaneous
o Port B support
o Port 92 support
Uses 0.6um, ultra-low power CMOS technology for Rev. E and below;
0.5um for Rev. G. Packaged in a 208-pin PQFP package
**W83628F/29D PCI TO ISA Bridge Set c98...
**W83626F/D LPC TO ISA Bridge Set <00...
**
**Multi I/O:
**W83757 SUPER I/O CHIP <92...
**W83767F ?? Multi I/O [no datasheet]
**W83777F/87F Power I/O (Multi I/O) <95...
**W83877F WINBOND I/O (Multi I/O) <96...
**W83877TF/TG/TD WINBOND I/O (Multi I/O) c97...
**W83977F/G/AF/AG WINBOND I/O (Multi I/O) c97...
**W83977TF WINBOND I/O (Multi I/O) c97...
**W83977EF WINBOND I/O (Multi I/O) <98...
**W83977ATF WINBOND I/O (Multi I/O) <98...
**
**Disk Controller:
**W83759/A/F/AF Advanced VL-IDE Disk Controller <96...
**W83769 Local Bus IDE Solution <94...
**
**UARTS:
**W86C250A UART (equivalent of INS8C250A) [no datasheet]
**W86C450/P Universal Asynchronous Receiver/Transmitter <Jul89
***Info:
GENERAL DESCRIPTION
The W860450/P is an improved specification version of the W86C250A
Universal Asynchronous Receiver/Transmitter [UART). The improved
specifications ensure compatibility with the state-of-the-art
CPUs. Functionally, the W860450/P is equivalent to the INS8250A of the
National Semiconductor. The W86C450/P is fabricated using WINBONDâs
CMOS process. The W860450/P performs serial-to-parallel conversion on
data characters received from a peripheral device or a MODEM, and
parallel-to-serial conversion on data characters received from the
CPU. The CPU can read the complete status of the W860450/P at any time
during the functional operation. Status information reported includes
the type and condition operation. Status information reported
includes the type and condition of the transfer operations being
performed by the W860450/P, as well as any error conditions (parity,
overrun, framing, or break interrupt).
The W860450/P includes a programmable baud rate generator that is
capable of dividing the timing reference clock input by divisors of l
to (2^16 - 4), and producing 16x clock for driving the internal
transmitter logic. Provisions are also included to use this 16x clock
to capability and a processor-interrupt system. Interrupts can be
programmed to the user's requirements, minimizing the computing
required to handle the communications link.
***Versions:...
***Features:...
**W86C451 I/O controller for IBM PC/AT/XT <Jul89...
**W86C452 I/O controller for IBM PC/AT Jul89...
**W86C456 I/O controller [no datasheet] ?
**W860551/P UART with FIFO and Printer Port Controller <94...
**
**Other:...
*ZyMOS...
*General Sources:...
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