Latest revision as of 18:07, 22 February 2023

Later version of the NEO-YSA chip. Contains a YM2610, the Z80 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.

Waveforms on test points during crosshatch screen:

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

@@ Line 1: / Line 1: @@
-[[File:brd_ysa2.jpg|thumb|Picture courtesy of [[http://www.mvs-scans.com MVS-Scans]].]]
+{{ChipInfo
+|picture=brd_ysa2.jpg
+|pkg=QFP144
+|manu=yamaha
+|date=1999 ?
+|gates=A lot !
+|used_on={{PCB|MV1C|}}, [[CDZ]], [[ROM-Only boards]]...
+}}
-Later version of the [[NEO-YSA]] chip. Contains a [[YM2610]] equivalent.
+Later version of the {{Chipname|NEO-YSA}} chip. Contains a {{Chipname|YM2610}}, the {{Chipname|Z80}} CPU and its [[Z80 RAM|RAM]]. It is also used to handle player input.
-Player inputs connected to it on MV1C boards ?
+Can be used with a [[http://www.datasheetcatalog.org/datasheet/rohm/bu9480f.pdf BU9480F]] 16bit stereo DAC.
-Can also be found in the [[CDZ]].
+=Pinout=
-Used with a [[http://www.datasheetcatalog.org/datasheet/rohm/bu9480f.pdf BU9480F]]16bit stereo DAC.
+{{Pinout|NEO-YSA2|640}}
+Pin 23: Input, read REG_STATUS_B.
+=Test points=
+Waveforms on test points during crosshatch screen:
+<gallery>
+Neo-ysa2_tp4.png|TP4
+Neo-ysa2_tp5.png|TP5
+Neo-ysa2_tp6.png|TP6
+Neo-ysa2_tp7.png|TP7
+Neo-ysa2_tp8.png|TP8
+</gallery>
+TP9, TP10 (under the board) and TP11 are all high.
 [[Category:Chips]]