| 摘要 |
PROBLEM TO BE SOLVED: To further increase the liquid injection execution speed of a liquid fuel injection device, compared with in the past by realizing a high-speed expansion processing of compressed data and the high-speed transfer of data to a liquid injection head. SOLUTION: Compressed record data are DMA-transferred to a receiving buffer part 42 by one word for each via a system bus SB, and further DMA-transferred from the receiving buffer part 24 to DECU 41 through the system bus SB. The compressed data are expanded to hardware by a decode circuit within the DECU 41, and stored in a line buffer 281. When a prescribed byte number is attained, the data are DMA-transferred to a local memory 29 via a local bus LB. The record data stored in the local memory 29 is DMA transferred to the DECU 41 via the local bus LB, DMA-transferred to a head control part 33 and then DMA-transferred to a recording head 62. COPYRIGHT: (C)2004,JPO
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