NEO-YSA2

Later version of the chip. Contains a, the CPU and its RAM. It is also used to handle player input.

Can be used with a [BU9480F] 16bit stereo DAC.

=Pinout=

Pin 23: Input, read REG_STATUS_B.

=Test points=

Waveforms on test points during crosshatch screen:

TP9, TP10 (under the board) and TP11 are all high.