8243 core model Intel8243 input/output expander Features Fun

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8243 core model Intel8243 input/output expander Features Fun

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ALDEC 8243 Core Data Sheet
8243 core model Intel8243 input/output expander
Features
Functionally based Intel 8243 device Five 4-bit peripheral ports: P20, P40, P50, P60, control signals: PROG Four programming modes peripherals (three write read modes) 4-bit bidirectional system data with standard microprocessor interface controls
Pinout
Table Core Signal Pinout Name PROG" Direction Input" Description Clock input. high-to-low transition PROG input signifies that address control bits available port, low-to-high transition signifies that data available port." Chip select input. high input inhibits changes output signals internal status." 4-bit bidirectional port contains address control bits high-to-low transition PROG input. During low-to-high transition, port contains data selected output port during write operation, data from selected port before low-to-high transition during read operation." 4-bit bidirectional ports. Could programmed input (during read operation), impedance latched output (after write operstion), tri-state (after read operation). Data pins P20-P23 could written directly logically mixed with previous data (AND logic)."
nCS"
Input"
P20[3:0]
Bidirectional"
P40[3:0] P50[3:0] P60[3:0] P70[3:0] Notes:
Bidirectional"
Each bidirectional defined core interface three separated ports. Optionally, using Interface, merged bidirectional port.
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©2006 Aldec, Inc. rights reserved
Aldec 8243 Core Data Sheet
Block Diagram
Figure Core Structure
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©2006 Aldec, Inc. rights reserved
Aldec 8243 Core Data Sheet
Deliverables
Available Cost: Verilog and/or VHDL Simulation Model (Encrypted Aldec simulator only) Data Sheet Application Notes Available Upon ordering: VHDL/Verilog source code Technology-dependent EDIF VHDL/Verilog netlists Verification Test Bench source code Source compilation simulation scripts Synthesis scripts User-Guide
Ordering Information
Aldec, Inc. 2260 Corporate Circle Henderson, 89074 Tel: 702-990-4400 Fax: 702-990-4414 Email: ipcores@aldec.com http://www.aldec.com
www.aldec.com
©2006 Aldec, Inc. rights reserved

8243 core model Intel8243 input/output expander Features Fun

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