Sound Driver Cpu Execution Times; Explanation Of The Rear Panel Leds On The Sound Target Box - Sega SATURN Device Manual Supplement

9. Sound Driver CPU Execution Times

Software DSP control is executed in 8 ms.
Software PLFO control is executed in 4 ms.
Other target programs are executed in 2 ms.

10. Explanation of the Rear Panel LEDs on the Sound Target Box

The LED's flash in sequence from LED 1 to LED 8 while the boot ROM is
starting up. This operation is momentarily interrupted while data is being transferred
using the SCSI interface but is restored upon completion of the transfer.
When the target program is executed after being transferred, LED 1 flashes, which
confirms that the CPU is operating normally.
The flashing of other LED's while LED 1 is flashing (CPU is operating normally)
indicates the following.
LED 2: CPU is operating at its maximum capability.
LED 3: Interrupts for BGM decompression (normally flashes) in progress.
LED 4: Ignore
LED 5: Ignore
LED 6: Ignore
LED 7: MIDI input from MIDI-IN2 on the board.
LED 8: MIDI input from MIDI-IN1 on the board.
SEGA SATURN Sound Tools Manual Supplement
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