HSP45240_04 Datasheet, PDF (1/13 Pages) Intersil Corporation – Address Sequencer

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HSP45240
July 2004
Address Sequencer
Features
• Block Oriented 24-Bit Sequencer
• Configurable as Two Independent 12-Bit Sequencers
• 24 x 24 Crosspoint Switch
• Programmable Delay on 12 Outputs
• Multi-Chip Synchronization Signals
• Standard µP Interface
• 100pF Drive on Outputs
• DC to 50MHz Clock Rate
Applications
• 1-D, 2-D Filtering
• Pan/Zoom Addressing
• FFT Processing
• Matrix Math Operations
Ordering Information
PART NUMBER
HSP45240JC-33
HSP45240JC-50
TEMP.
RANGE (°C)
PACKAGE
0 to 70 68 Ld PLCC
0 to 70 68 Ld PLCC
PKG.
DWG. #
N68.95
N68.95
Description
The Intersil HSP45240 is a high speed Address Sequencer
which provides specialized addressing for functions like
FFTs, 1-D and 2-D filtering, matrix operations, and image
manipulation. The sequencer supports block oriented
addressing of large data sets up to 24-bits at clock speeds
up to 50MHz.
Specialized addressing requirements are met by using the
onboard 24 x 24 crosspoint switch. This feature allows the map-
ping of the 24 address bits at the output of the address genera-
tor to the 24 address outputs of the chip. As a result, bit reverse
addressing, such as that used in FFTs, is made possible.
A single chip solution to read/write addressing is also made
possible by configuring the HSP45240 as two 12-bit
sequencers. To compensate for system pipeline delay, a
programmable delay is provided on 12 of the address out-
puts.
The HSP45240 is manufactured using an advanced CMOS
process, and is a low power fully static design. The configu-
ration of the device is controlled through a standard micro-
processor interface and all inputs/outputs, with the exception
of clock, are TTL compatible.
Block Diagram
STARTIN
START
CIRCUITRY
DLYBLK
SEQUENCE
GENERATOR
24 _CROSSPOINT
SWITCH
12
REG
12 _DELAY
1-8
PROCESSOR INTERFACE
D0-6, CS, A0, WR
STARTOUT
ADDVAL
DONE
BLOCKDONE
OUT12-23
OEH
OUT0-11
OEL
BUSY
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright Harris Corporation 1997, Copyright Intersil Americas Inc. 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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