CL-PS7500FE-56QC-A Просмотр технического описания (PDF) - Cirrus Logic
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CL-PS7500FE-56QC-A Datasheet PDF : 251 Pages
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CL-PS7500FE
System-on-a-Chip for Internet Appliance
FEATURES (cont.)
s CRT or color/monochrome LCDs
— Resolutions up to 1024 × 768
— 256-entry 28-bit video palette
— Single- and dual-scan panel LCDs (16-bit grayscale)
s Serial CD digital sound (32-bit) output
s Supports EDO and Fast page mode DRAMs
— Up to 132 Mbytes/sec. (peak) using 64-MHz memory
clock and 32-bit-wide DRAM
— Programmable 16- or 32-bit-wide memory system
— Speed-critical paths are pipelined
s PC-style I/O bus (40-MHz) for connection to any
Cirrus Logic peripheral device
— 56k fax/modem chipset
— CS89XX Ethernet controller
— Can be expanded to 32 bits with external transceivers
s ROM/FLASH
— Supports two 16-Mbyte banks
— Individual read timings
— Burst mode reads
— Allows for writes under register control for FLASH
OVERVIEW (cont.)
The video controller features RGB drive of a SVGA
monitor or a color LCD. It also incorporates various
sync inputs, which when combined with an external
encoder, permit the use of interlaced TV displays.
The device incorporates a digital audio controller
with a 32-bit serial interface for connection to the
Cirrus Logic, CS4333 CD-DAC device. The
CL-PS7500FE can also interface to the Cirrus Logic
56K, FastPath™ modem chipset ideal for Internet
access over a POTS line.
The CL-PS7500FE is available in two speed grades:
q ARM CPU running at 40 MHz; memory clock
running up to 64 MHz
q ARM CPU running at 56 MHz; memory clock
running up to 64 MHz
The CL-PS7500FE supports UMA (unified memory
architecture); EDO DRAMs can be used to achieve
high-memory bandwidth.
The CL-PS7500FE is the main computing engine in
the NC platform defined by Oracle®, and runs the
NC operating system and applications.
The device is available in a 240-pin PQFP (plastic
quad flat pack) package.
2
June 1997
ADVANCE DATA BOOK v2.0
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