B
PRELIMINARY
CY82C693UB
hyperCache™ / Stand-Alone PCI Peripheral
Controller with USB
Features
• PCI to ISA bridge
• PCI Bus Rev. 2.1 compliant
• Supports up to 5 additional PCI masters including the
CY82C691
• Integrated DMA controllers with Type A, B, and F sup-
port
• Integrated Interrupt controllers
• Integrated timer/counters
• Integrated Real-Time-Clock with 256 bytes of bat-
tery-backed SRAM (14 bytes of clock RAM and 242
bytes of CMOS scratch RAM)
• Write-only Register Shadowing
• Integrated Dual-Channel enhanced IDE controller with
— PCI bus mastering
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•
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•
•
•
•
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— CD ROM support
— PIO modes 0 through 4 operation
— Single-word and Multi-word DMA modes 0 through 2
Integrated Keyboard Controller
APM compliant power management support through
SMM or under hardware control
Flash PROM support with write-protection
Power-on reset circuitry
QuietBus™ support for the PCI and ISA bus interfaces
for better noise immunity
General-purpose I/O pins and registers
USB Host/Hub controller with 2 USB ports
Flexible Stand-Alone configuration options
Packaged in a 208-pin PQFP
System Block Diagram
Intel
Pentium
™
Processor,
Cyrix M1
or
AMD K5, K6
CY82C691
TAG
Cypress
Clock
CY2254ASC-2
DRAMAddress,
DRAMControl
CY82C694
Expansion Cache
Control
CY82C692
CACHE
PCI LOCAL BUS
DRAM
Data[0:31]
DRAM
Data[32:63]
EPROM
CY27C010
or Flash
BIOS
DRAM
Lower 4 Bytes
CY82C693UB
DRAM
Upper 4 bytes
Standard or EDO DRAMs
USB Bus
ISA Bus
IDE devices
hyperCache and QuietBus are trademarks of Cypress Semiconductor Corporation.
Pentium is a trademark of Intel Corporation.
Cypress Semiconductor Corporation
•
3901 North First Street
•
San Jose
• CA 95134 •
408-943-2600
March 25, 1997 - Revised December 10, 1997
CYPRESS [ CYPRESS SEMICONDUCTOR ]
