| 摘要 |
PROBLEM TO BE SOLVED: To use FIFO storage capacity so that bandwidth efficiency is improved and a circuit is reduced in size and cost by providing a multiple-logic FIFO system wherein a 1st and a 2nd logic FIFO share a common storage device. SOLUTION: A demultiplexer and a control circuit enqueues cycle information addressed to a 1st I/O interface 1312 from a cycle information output 1323 to a 1st logic FIFO according to a data preparation completed output 1326. According to a 1st I/O interface usable output 1329, the information is dequeued from the 1st logic FIFO to the 1st I/O bus interface 1312. Then cycle information addressed to a 2nd I/O interface 1314 is enqueued from the cycle information output 1323 to a 2nd logic FIFO according to the data preparation completed output 1326. According to the 2nd I/O interface usable output 1329, the information is dequeued from the 2nd logic FIFO to the 2nd I/O bus interface 1314.
|
