Abstract
This graduation project's main purpose is manufactures one based on monolithic integrated circuit's digital sound recording and the broadcast system. Selects Ling Yang 16 monolithic integrated circuit SPCE061A and exterior expanded memory unit W29C040 realizes. It has the volume to be small, the integration rate high, easy to expand, the reliability to be high, the power loss is low, the structure is simple, interrupt processing ability strong and so on characteristics, adapts specially in digital digital application domains and so on pronunciation recording and sending out and speech recognition. SPCE061A is 16 monolithic integrated circuits which Taiwan Ling Yang company produces, this monolithic integrated circuit built-in has 2 group DA to transform, 8 group AD transformations and the online simulation and so on rich function, W29C040 is 4M which Taiwan China Nation Company produces the position FLASH memory chip, uses it to save the Ling Yang form the pronunciation resources, may be 4 minute pronunciation recording and sending out. This system may widely apply in the demand recording long situation. If examination temperature memory broadcast system, from records application plans and so on voice prompt. This system provides the W29C040 related read-write module, this module may also apply in W29C040 in the homologous series related FLASH chip. If is the simple controlled member, only needs using the monolithic integrated circuit to take the control core, does not need to add separately the external instrumentation to be able to realize. Regarding the complex system, only need carry on the suitable expansion to the monolithic integrated circuit, is very then convenient. To one complex or the function formidable pronunciation, the imagery processing system needs to be very big, different memory (ROM, FLASH, SRAM) storage space, to solve the I/O insufficient problem, we use the W29C040 chip to expand SPCE061The memory to realize the bigger spatial memory.
key word SPCE061A, dodges saves, W29C040, speech input/recording and sending out