Patent ID: 8320222

Claim:
A semiconductor integrated circuit mountable to a disk recording and reproducing drive comprising: a spindle motor capable of rotatably driving a disk; a pickup capable of executing a writing of data onto the disk and a reading of data from the disk; a pickup drive motor capable of driving the pickup; and a buffer memory capable of storing therein the data read from the disk and the data written onto the disk, the semiconductor integrated circuit comprising: a signal processor capable of generating the read data according to a process of an RF signal read from the pickup by the data reading; and a servo controller capable of controlling the spindle motor, the pickup and the pickup drive motor in response to a servo error signal read from the pickup, the semiconductor integrated circuit further comprising: a memory controller supplied with the read data generated from the signal processor and a servo signal generated from the servo controller and coupleable to the buffer memory; and an external interface coupleable to an external device of the semiconductor integrated circuit and coupled to the memory controller, wherein the memory controller is capable of storing the read data and the servo signal in the buffer memory according to a time division process and transferring the read data and the servo signal stored in the buffer memory according to the time division process to the external device through the external interface.