CY82C693UB Datasheet, PDF (1/164 Pages) Cypress Semiconductor – hyperCache TM / Stand-Alone PCI Peripheral Controller with USB

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
— 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
Cypress
Clock
CY2254ASC-2
EPROM
CY27C010
or Flash
BIOS
CY82C694
Expansion Cache
CY82C691
Control
TAG
DRAMAddress,
DRAM Control
PCI LOCAL BUS
DRAM
Data[0:31]
CY82C692
CACHE
DRAM
Data[32:63]
CY82C693UB
DRAM
Lower 4 Bytes
DRAM
Upper 4 bytes
Standard or EDO DRAMs
USB Bus ISA Bus
hyperCache and QuietBus are trademarks of Cypress Semiconductor Corporation.
Pentium is a trademark of Intel Corporation.
IDE devices
Cypress Semiconductor Corporation • 3901 North First Street • San Jose • CA 95134 • 408-943-2600
March 25, 1997 - Revised December 10, 1997