Lpc2000

1. SPI is a four-wire interface, I2C is a two-wire interface.
Check the Philips website for a complete description for the I2C 
interface. The SPI interface is very much like a simple 8-bit shift 
register with parallel load.

2. Read this article! http://en.wikipedia.org/wiki/Pipeline_(computer)

3. Both architectures address how data is moved to/from the execution 
unit. Harvard used multiple busses, (high connectivity), von-Neumann 
uses single bus, (low connectivity). Harvard is used in devices such 
as DSP's, 8051. von-Neumann is typically used by PowerPC type 
processors.

4. RISC = Reduced Instruction Set Computing; CISC = Complex 
Instruction Set Computing. Google RISC and CISC, or enter these 
acronyms in Wikipedia; www.wikipedia.org

5. Interrupt latency == the amount of time it takes for the silicon 
state machine to pre-empt the current process to enter into the 
interrupt condition. It can also mean the amount of time it takes to 
process the interrupt. It has also been used to describe the amount of 
time it takes to save/restore the context.

Now That I Have Entertained You ...> PLEASE find the information and 
learn this stuff yourself!!!

Ken Wada

--- In lpc2000@yahoogroups.com, <malhotra_umang@...> wrote:
>
> Hi friends..
>   I have a few more questions..
>   
> 1. Differences between SPI and I2C serial interfaces .
> 2. what is pipelining in embedded
> 3. what is difference b/w harward and von-newman architectures.
> 4. RISC vs CISC
> 5. Interrupt latency...
> 
> 			
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