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**82485       Turbo Cache (and 485Turbocache)                      c90
***Notes:...
***Info:...
***Versions:
82485 25MHz
82485 33MHz

****485Turbocache module...
***Features:...
**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...
**800 series...
*Headland/G2...
**HT25          3-volt Core Logic for 386SX                    c:Dec92
***Info:...
***Configurations:...
***Features:...
**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...
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**W83777F/87F     Power I/O   (Multi I/O)                          <95
***Info:...
***Versions:...
***Features:
o   Compatible with IBM PC AT disk drive systems
o   Variable write pre-compensation with track selectable capability
o   DMA enable logic
o   Non-burst mode DMA option
o   Supports floppy disk drives and tape drives
o   Detects all overrun and underrun conditions
o   Data rate and drive control registers
o   Built-in address mark detection circuit to simplify the read 
    electronics
o   IBM PC system address decoder
o   Supports up to two embedded hard disk drives (IDE AT BUS)
o   Single 24 MHz crystal input
o   Two high-speed 16550 compatible UARTs with 16-byte send/receive 
    FlFOs
o   MIDI compatible
o   Fully programmable serial-interface characteristics:
    - 5, 6, 7 or 8-bit characters
    - Even, odd or no parity bit generation/detection
    - 1, 1.5 or 2 stop bits generation
o   Internal diagnostic capabilities:
    - Loop-back controls for communications link fault isolation
    - Break, parity, overrun, framing error simulation
o   Programmable baud generator allows division of 1.8461 MHz by 1 to
    (2^16 - 1)
o   Compatible with IBM parallel port
o   Supports parallel port with bi-directional lines
o   Supports Enhanced Parallel Port (EPP)
    - Compatible with IEEE 1284 specification
o   Supports Extended Capabilities Port (ECP)
    - Compatible with IEEE 1284 specification
o   Extension FDD mode supports disk drive B through parallel port
o   Extension Adapter Mode supports pocket devices through parallel 
    port
o   Extension 2FDD mode supports disk drives A and B through parallel
    port
o   JOYSTICK mode supports joystick through parallel port
o   Programmable configuration settings
o   Immediate or automatic power-down mode for power management
o   All hardware power-on settings have internal pull-up or pull-down
    resistors as default value
o   FDD anti-virus functions with software write protect and FDD 
    write enable signal, write data signal force inactive
o   Packaged in 100-pin QFP

W83777F:
o   Supports up to four 3.5-inch or 5.25-inch floppy disk drives
o   Completely compatible with industry standard 82077
o   360K/720K/1.2M/1.44M/2.88M format
o   250K, 300K, 500K, 1M bps data transfer rate
o   Supports vertical recording format
o   16-byte data FIFOs
o   Pins and functions downward compatible with W83757F, W83757AF, 
    W83767F, and W83787F

W83787F:
o   Supports up to four 3.5-inch or 5.25-inch floppy disk drives
o   Completely compatible with industry standard 765
o   360K/720K/1.2M/1.44M format
o   250K, 300K, 500K bps data transfer rate
o   Pins and functions downward compatible with W83757F, W83757AF, 
    and W83767F

**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...
**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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