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Date tag: March 22 2010 6:51:52
A critical race is one that may have a lasting effect, because it my cause a transition to a wrong next stable state.
Date tag: March 22 2010 6:43:14
Race conditions, noncritical races
Date tag: March 19 2010 7:22:50
race conditions
Date tag: March 19 2010 7:19:18
To implement a flow table
Date tag: March 19 2010 7:10:45
flow tables
Date tag: March 19 2010 7:8:48
The fundamental mode assumption assumes that only one input changes at a time and that between two changes of the input values the system has time to reach a stable state.
Date tag: March 19 2010 7:3:15
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Date tag: March 19 2010 6:55:20
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Date tag: March 19 2010 6:52:53
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Date tag: March 19 2010 6:48:57
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Date tag: March 19 2010 6:44:20
asynchronous sequential systems have no clock and the advantages are that they dont have to wait for the clock pulse to respond to input changes.
Date tag: March 19 2010 6:35:32
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Date tag: March 19 2010 6:33:26
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Date tag: March 19 2010 6:32:41
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Date tag: March 17 2010 7:19:48
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Date tag: March 17 2010 7:17:24
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Date tag: March 17 2010 7:15:43
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Date tag: March 17 2010 7:12:43
pla
Date tag: March 17 2010 7:12:11
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Date tag: March 17 2010 7:7:31
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Date tag: March 17 2010 7:2:1
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Date tag: March 17 2010 6:59:34
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Date tag: March 17 2010 6:55:25
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Date tag: March 17 2010 6:51:43
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Date tag: March 17 2010 6:51:9
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Date tag: March 17 2010 6:48:41
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Date tag: March 17 2010 6:41:51
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Date tag: March 17 2010 6:41:41
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Date tag: March 17 2010 6:34:14
error correcting codes
Date tag: March 15 2010 7:21:58
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Date tag: March 15 2010 7:16:8
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Date tag: March 15 2010 7:9:1
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Date tag: March 15 2010 7:5:32
error detection and correction hamming code
Date tag: March 15 2010 7:0:27
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Date tag: March 15 2010 6:55:34
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Date tag: March 15 2010 6:52:13
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Date tag: March 15 2010 6:43:32
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Date tag: March 15 2010 6:35:15
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Date tag: March 12 2010 6:12:54
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Date tag: March 12 2010 6:9:6
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Date tag: March 12 2010 6:5:12
SRAM is faster than DRAM but DRAM consumes less power and uses less space. Volatile memory loses information when the power is shut off. Nonvolatile memory does not.
Date tag: March 12 2010 6:2:28
likewise write input must be kept activated. When reading, correct data may not appear until sufficient time has elapsed, called the access time. You must read input activated during this process. There are 2 main types of memory: DRAM which requires regular refreshing every few ms and SRAM which has cells that can be thought of as latches.
Date tag: March 12 2010 5:57:39
When writing, correct data must be applied to input for a sufficient time, called the cycle time.
Date tag: March 12 2010 5:54:28
To write a word, apply the address bits to the address lines then apply the data to bits to the data inputs, and activate the write input. To read a word apply the address bits, activate the read input. Some chips promote a memory enable or chip select input and a read write input.
Date tag: March 12 2010 5:52:22
How to write to memory
Date tag: March 12 2010 5:49:38
Random access memory or RAM is so called because we can directly access any part of the memory. A byte is a group of 8 bits. A word is typically an integer number of bits.
Date tag: March 12 2010 5:49:30
Read only memory or ROM is an example of a programmable logic device or a PLD. Programming is storage or information in memory. ROM can not be rewritten durring normal operation.
Date tag: March 12 2010 5:44:26
Memory and programmable logic: Components of more complex synchronous sequential systems. Memory is organized into words and it transferable into registers in a processing unit such as a processor. Intermediate and final results are stored in memory.
Date tag: March 12 2010 5:38:5
Switch tail ring counter, johnson counter
Date tag: March 10 2010 6:22:59
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