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**????? (Profusion) c:99
Chips:
Memory Access Controller (MAC)
Data Interface Buffer (DIB)
CPUs: 8x P-III Xeon Oct
DRAM Types: SDRAM PC100 2-way Interleave dual channel
Max Mem: 32GB
ECC/Parity: ECC
AGP speed: N/A
Bus Speed: 100
PCI Clock/Bus: 1/3 PCI-66/64
**800 series...
*Headland/G2...
**HT22 386SX/286 Single Chip (25 MHz) c:Sep91
***Info:
The HT22 is an advanced PC/AT compatible, single-chip 80386SX/80286
system design solution. This highly integrated single chip allows
simple, low cost system design options while featuring high perfor-
mance, low power consumption, and minimum board space require-
ments. Advanced memory management features include support for page
mode, 2 or 4-way interleaving in both pipelined and non-pipelined
modes. The EMS 4.0 hardware implementation features dual sets of 32
registers with full context support for highest performance
optimization of extended local memory accesses. An advanced EMS
hardware write-protect option has been added for maximum EMS 4.0
compatibility. The HTZ2 supports 256K, 1M and 4MB DRAMs in 1 by 1 and
1 by 4 device configurations for up to 20MB of on-board system memory.
16MB is addressed directly by system resources, the remainder
addressed by the EMS mode.
A flexible Shadow RAM option for System and Video BIOS as well as 8-
16-bit BIOS options adds to overall design versatility.
A complete PC/AT compatible system with advanced features may be
implemented with minimal external support logic. The HT22 performs all
CPU and peripheral support functions in a single chip. Integrated
device functions include DMA Controllers, a Memory Mapper, Timers,
Counters, Interrupt Controllers, a Bus Controller and all supporting
circuitry for PC core logic requirements. The chip also contains all
the necessary address buffers, data transceivers, memory drivers,
parity checking and supporting circuitry for a complete high
performance computer solution. An asynchronous AT Bus clock allows
for a constant 8MHz Bus clock rate for highest bus device compat-
ibility as defined in IEEE Spec P996. This device is packaged in a
208-pin Plastic Quad Flat Pack.
***Configurations:...
***Features:...
**HT25 3-volt Core Logic for 386SX c:Dec92...
**HT35 Single-Chip Peripheral Controller [partial info] ?...
**HTK320 386DX Chip Set c:Sep91...
**HTK340 "Shasta" 486 Chip Set c:Jun92...
**Support Chips:
**HT44 Secondary Cache c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
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*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
**W83877F WINBOND I/O (Multi I/O) <96
***Info:
GENERAL DESCRIPTION
One of Winbond's popular series of I/O chips, the W83877F integrates a
disk drive adapter, serial port (UART), parallel port, IDE bus
interface, and game port decoder onto a single chip. The W83877F is an
enhanced version of the W83777F, with additional powerful features
such as configurable plug-and-play registers for the whole chip and
infrared support in one of the serial ports.
The disk drive adapter functions of the W83877F include a floppy disk
drive controller compatible with the industry standard 82077/765, data
separator, write pre-compensation circuit, decode logic, data rate
selection, clock generator, drive interface control logic, and
interrupt and DMA logic. The wide range of functions integrated onto
the W83877F greatly reduces the number of components required for
interfacing with floppy disk drives. The W83877F supports four 360K,
720K, 1.2M, 1.44M, or 2.88M disk drives and data transfer rates of 250
Kb/S, 300 Kb/S, 500 Kb/S, and 1 Mb/S.
The W83877F provides two high-speed serial communication ports
(UARTs), one of which supports serial Infrared communication. Each
UART includes a 16-byte send/receive FIFO, a programmable baud rate
generator, complete modem control capability, and a processor
interrupt system.
The W83877F supports one PC-compatible printer port. Additional
bidirectional I/O capability is available by hardware control or
software programming. The parallel port also supports the Enhanced
Parallel Port (EPP) and Extended Capabilities Port (ECP).
The W83877F supports two embedded hard disk drive (AT bus) interfaces
and a game port with decoded read/write output. The chip's Extension
FDD Mode and Extension 2FDD Mode allow one or two external floppy disk
drives to be connected to the computer through the printer interface
pins in notebook computer applications.
The Extension Adapter Mode of the W83877F allows pocket devices to be
installed through the printer interface pins in notebook computer
applications according to a protocol set by Winbond, but with upgraded
performance. The JOYSTICK mode allows a joystick to be connected to a
parallel port with a signal switching cable.
The configuration registers support mode selection, function enable/
disable, and power down function selection. Moreover, the conf-
igurable PnP registers are compatible with the plug-and-play feature
in Windows 95 , which makes system resource allocation more efficient
than ever.
***Versions:...
***Features:...
**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...
**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...
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