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Graphics Interchange Format  |  1997-01-15  |  82KB  |  565x369  |  4-bit (16 colors)
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OCR: FIGURE 6 Block diagram of a flash memory with service and error logs. BOOT BLOCK contains the bout code. Repardless of the condition of the other blocks, there will Boot Block always be code so the GPLi can recover from a failed code update. Parameter Block PARAMETER BLOCK contains key system paratpeters such as loup ghins, off cis, ned serial numbers, Parameter Block PARAMETER BLOCK contains the service log. Bach entry is 32 bytes long, so up 10 256 Service scrivitics can be documented. Main Block MAIN BLOCK conthins part of the applicantons code. MAIN B1.OCK coninins the rest of the application codt. This would normally have been a 2MB Main Block device: A -IMB device is tised for preproduction. MAIN BLOCK alternately contains the service lop, When this block is full, the other MAIN Main Block BLOCK is written to. When the oflier ix full, this one is crased and the next error record is writ- Ich into it MAIN BLOCK altemaily contains the service lop When this block is full. the outer MAIN Main Block BLOCK is written to. When the ucher is full, this one is erased and the text orroc record is with-