Patent ID: 7197590
Filing Date: 2007-03-27
Classification: G06F

Abstract:
1. A method for connecting low pin count (LPC, hereinafter) bus to serial flash memory, comprising: (a) fetching a LPC bus instruction; (b) converting the LPC bus instruction to a serial instruction according to the required format of a serial flash memory; (c) provided the serial instruction is a write instruction, recording the serial instruction, accumulating write instructions until N instructions are received, combining the accumulated instructions and outputting to a serial flash memory at one time, where N is a preset positive integer and a preferred setting equivalent to the efficient size of a central processing unit (CPU, hereinafter) process divided by 8; (d) provided the serial instruction is a read instruction, reading M bytes of data from the serial flash memory and outputting the data sequentially, where M is a preset positive integer and a preferred setting equivalent to the efficient size of a CPU process divided by 8; (e) converting an output data to the required format according to the LPC bus, where the output data is for responding to the LPC bus instruction; and (f) outputting the output data of converted format to the LPC bus.