Hola [EMAIL PROTECTED] !!!
Leonard Silva de Oliveira le solto a jam:
>>
>> :? It sounds strange to me. I've got a Master System and I've seen
>> a fantastic AY-3-8910 inside.
LO>
LO> The sega master system has a chip wich looks like the V9938
LO> It's the VDP and is clocked at 10mhz ... Inside it has also the PSG.
LO> There may be out other versions of the Hardware ... but the one I
I think so. My Master System has a real ay-3-8910 inside.
LO> meant has only 2 dedicated (SEGA) ICs one is the VDP/PSG and other
LO> is the I/O chip. All the rest is 3 16kb pseudo SRAM chips (2 for vram
LO> and one for the Z80)
LO> And the Z80 iself.
Right.
>> RL> SN-something, slower than our one (and also it doesn't have
>> RL> envelopes...)
>>
>> Hmmmm. I think you mean the SN76489A PSG. It's the ColecoVision one
>> :)
LO>
LO> The model wich has the PSG inside the VDP uses this TEXAS INSTRUMENTS
LO> PSG ... then it's probably that or you have a "pirate" Master system
Well ..... SNxxxxxx and AY-3-891x ar both made by Texas Instruments.
And, I remember .... I think there was an equivalent of AY-3-8910 named as
SNxxxxxx, but it wasn't SN67489A, but something like this.
LO> or it isn't a master system or even it's a master system but is of
LO> a diferent hardware version ...
It is possible :)
JAM ([EMAIL PROTECTED]) *MSX Dreams*
... Evolution waits for no one .....
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