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**UM82C088 PC/XT Integration Chip <91
***Info:
The UM82C088 is an IC specifically designed to function as the
peripheral controller for 8088 microprocessors in an IBM PC/XT
compatible computer. It is implemented in 1.5/1 CMOS technology and is
packaged in a 100 pin plastic flat package.
The datasheet includes a schematic for an implementation.
***Configurations:...
***Features:...
**UM82C230 286AT MORTAR Chip Set <91...
**UM82C210 386SX/286 AT Chip Set <91...
**UM82C3xx Twinstar & UM82C336F/N & UM82C39x [no datasheet] ?...
**UM82C380 386 HEAT PC/AT Chip Set <91...
**UM82C480 386/486 PC Chip Set c91...
**UM82C493/491 ??????????????? [no datasheet] ?...
**UM8498/8496 486 VL Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8881/8886 HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8890 Pentium chipset [no datasheet] ?...
**
**Support Chips:
**UM82152 Cache Controller (AUStek A38152 clone) <91...
**UM82C852 Multi I/O For XT <91...
**UM82C206 Integrated Peripheral Controller <91
***Info:
The UM82C206 Integrated Peripheral controller includes two 8237 DMA
controllers, two 8259 Interrupt controllers, one 8254 Timer/Counter,
one MC146818 compatible Real Time Clock, an additional 64 bytes CMOS
RAM, one 74LS612 memory mapper, and some top level decoder/
configuration logic circuits. It is a single chip integration of all
main peripheral parts attached to the X bus of PC/AT architecture.
While providing full compatibility with PC/AT architecture, the
UM82C206 also offers some enhanced features and improved speed
performance. These include an additional 64 bytes of user definable
CMOS RAM in real time clock and drastically reduced recovery time for
the 8237, 8259 and 8254. Programmable wait state option is provided
for the DME cycles and CPU I/O cycles accessing this chip. This chip
also provides programmable 8 or 4 MHz DMA clock selection. The
UM82C206 is implemented using advanced 1.5u CMOS design technology and
is packaged in an 84-pin PLCC.
***Versions:...
***Features:
o Fully compatible with PC/AT architecture
o Fully compatible with 8237 DMA controller, 8259 Interrupt
controller, 8254 Timer/Counter, and 146818 Real Time Clock
o Provides 7 DMA channels, 13 Interrupt request channels, 2 Timer/
Counter channels, and a Real Time Clock
o Built in 74LS612 memory mapper for DMA page address
o Provides 114 bytes of CMOS RAM memory
o 8 MHz DMA clock with programmable internal divider for 4 MHz
operation
o 16M bytes DMA address space
o Programmable wait states for the DMA cycle
o Reduced recovery time (120 ns) between I/O operations
**UM82c45x Serial/Parallel chips ?...
**Other chips:...
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