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???
02/11/05 00:43
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 		 #87114 - LPC900 family
Responding to: ???'s previous message
Most of the larger LPC900 devices have both I2C and SPI on them. These would include the P89LPC932A1, 933, 934, 935, 936. The 936 has 16KB of code memory, the others have 8KB.

Another way to go is to go get a P89LPC916. This is a 14-pin TSSOP device that has a UART, an I2C, and SPI interfaces and 2KB of code memory. You could connect this to any other general 80C51 device via the UART. Then write some code for this device and it could speak I2C and SPI to other devices for you. Sort of a UART -SPI/I2C bridge.

Bill

List of 29 messages in thread
TopicAuthorDate
Prepaid Energymeter: need help            01/01/70 00:00      
   SPI can be bit banged            01/01/70 00:00      
      Both SPI and I2C            01/01/70 00:00      
         help me            01/01/70 00:00      
   Already read these notes?            01/01/70 00:00      
   Prepaid Energymeter: need help            01/01/70 00:00      
      GK            01/01/70 00:00      
         UPDATE from my side: 1            01/01/70 00:00      
            better still            01/01/70 00:00      
            Some speed ups            01/01/70 00:00      
               ?            01/01/70 00:00      
                  May be            01/01/70 00:00      
                  Readymade proj charges.            01/01/70 00:00      
            260V, 40A max. assumed for residential?            01/01/70 00:00      
               Residential Supply            01/01/70 00:00      
                  100 to 200 Amps in the US            01/01/70 00:00      
               AC ratings for Residential, India            01/01/70 00:00      
                  Discuss with tutors!            01/01/70 00:00      
   Discuss with tutors!            01/01/70 00:00      
   AD7751 available in Mumbai            01/01/70 00:00      
      Didn't receive sample ICs            01/01/70 00:00      
         Interfacing ADE7751            01/01/70 00:00      
            one more option            01/01/70 00:00      
               No SPI in AT89S52            01/01/70 00:00      
                  AT89C51 RB2/RC2/RD2 has SPI            01/01/70 00:00      
                     Sorry ,Its 89s8252 available with SPI            01/01/70 00:00      
               ADE7751 under development            01/01/70 00:00      
   Updates (Compo. Selection)            01/01/70 00:00      
   LPC900 family            01/01/70 00:00      

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