Product Part Number: IBM22-ALDC1005S
Document Number: DCALD5DSU-04
ALDC1-5S
Data Compression
I B M Microelectronics
Contents
Chapter 1. Product Overview
1.1 Distinctive Features
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1.2 Package
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1.3 Part Number
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1.4 Quality
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1.4.1 Reliability
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1-1
1-1
1-1
1-1
1-1
1-2
2-1
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-3
3-1
3-1
3-1
3-2
3-2
3-3
3-3
3-4
3-4
3-5
3-5
3-6
3-6
3.4.1 Worst Case Expansion
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3-6
Chapter 2. Functional Description
2.1 Functional Areas
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2.1.1 Microprocessor Interface
2.1.2 Original Data Interface
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2.1.3 Compressed Data Interface
2.1.4 Clock Generation
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2.1.5 ALDC Encoder
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2.1.6 ALDC Decoder
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2.2 Data Transfer Operations
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2.2.1 Compression
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2.2.2 Decompression
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Chapter 4. Hardware Interface and Timing
4-1
4.1 Microprocessor Interface
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4-1
4.2 Original Data Interface
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4-4
4.3 Compressed Data Interface
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4-7
4.3.1 Compressed Data Interface FIFO
Operation
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4-9
4.4 Clock Interface
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4-10
Chapter 5. Pin Description
5.1 ALDC1-5S-L
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5.2 ALDC1-5S-P
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5-1
5-1
5-5
6-1
6-1
6-1
6-1
6-2
6-4
7-1
7-1
7-1
A-1
A-1
A-1
A-1
A-1
B-1
X-1
Chapter 3. Microprocessor Interface
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3.1 Registers
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3.1.1 Status (STAT)
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3.1.2 EC Level (ECL)
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3.1.3 Original Data Interface Transfer
Count (TCO)
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3.1.4 Compressed Data Interface
Transfer Count (TCC)
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3.1.5 Error Status (ERRS)
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3.1.6 Command (CMND)
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3.1.7 Transfer Size (XFR)
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3.1.8 Compressed Data Interface
Configuration (CCNF)
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3.2 Interrupt
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3.3 Resets
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3.4 Data Expansion
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Chapter 6. Electrical Characteristics
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6.1 Recommended Operating Conditions
6.2 Absolute Maximum and Minimum
Ratings
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6.3 DC Characteristics
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6.4 AC Characteristics
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6.5 Idd vs. Clock Frequency
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Chapter 7. Physical Dimensions
7.1 ALDC1-5S-L
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7.2 ALDC1-5S-P
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Appendix A. Notation
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A.1 Bit Significance
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A.2 Binary Numbering
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A.3 Hexadecimal Numbering
A.4 Direct Memory Access
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Appendix B. IBM ALDC Compression
Products
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How to Contact IBM Microelectronics
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(C) IBM CORP. 1993, 1994. ALL RIGHTS RESERVED. USE IS FURTHER SUBJECT TO THE PROVISIONS ON THE BACK OF THE TITLE PAGE.
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IBM [ IBM ]
