| 摘要 |
PROBLEM TO BE SOLVED: To provide a high performance graphics controller. SOLUTION: This graphics controller includes a logic circuit for responding to a first command outputted by a CPU by checking whether or not a memory controller is put into a state that the first command is performable, and for, when the memory controller chip is not put into that state, transmitting a signal indicating that the memory controller chip is ready to receive a second command from the CPU to the CPU, and continuing the check at the same time.
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