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- The following points should be noted when interfacing with the main CPU.
- Read / write in 16-bit units. It cannot be accessed in 8-bit units from the main CPU.
- When there is a read / write request, the address and data are taken into the SCSP buffer. As a result, "1" is output to the ready signal (MCRDYN) to the main CPU and a wait occurs. Since this wait continues until the internal processing of the LSI is completed, do not use continuous writing that causes frequent waits unless the power is turned on.
- When the power is turned on, the time required to initialize the sound memory by continuous writing is about 100msec with 4Mbit DRAM.
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