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V9958 - Revision history
2026-05-06T07:11:30Z
Revision history for this page on the wiki
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WikiSysop: Created page with "'''VDP Video Display Processor''' =Pinout= <pre> SDIP64-750mil +---\/---+ GND | 1 64| XTAL2 *DHCLR | 2 63| XTAL1 *DLCLK | 3 62| *RAS *VRESET | 4 61| *CAS0 *HSYNC | 5 60| *CAS1 *CSYNC | 6 59| *CASX BLEO | 7 58| VDD CPUCLK/*VDS | 8 57| R/*W *RESET | 9 56| AD7 *YS |10 55| AD6 CBDR |11 54| AD5 C7 |12 53| AD4 C6 |13 52| AD3 C5 |1..."
2023-12-04T17:30:29Z
<p>Created page with "'''VDP Video Display Processor''' =Pinout= <pre> SDIP64-750mil +---\/---+ GND | 1 64| XTAL2 *DHCLR | 2 63| XTAL1 *DLCLK | 3 62| *RAS *VRESET | 4 61| *CAS0 *HSYNC | 5 60| *CAS1 *CSYNC | 6 59| *CASX BLEO | 7 58| VDD CPUCLK/*VDS | 8 57| R/*W *RESET | 9 56| AD7 *YS |10 55| AD6 CBDR |11 54| AD5 C7 |12 53| AD4 C6 |13 52| AD3 C5 |1..."</p>
<p><b>New page</b></p><div>'''VDP Video Display Processor'''<br />
<br />
=Pinout=<br />
<pre><br />
SDIP64-750mil<br />
+---\/---+<br />
GND | 1 64| XTAL2<br />
*DHCLR | 2 63| XTAL1<br />
*DLCLK | 3 62| *RAS<br />
*VRESET | 4 61| *CAS0<br />
*HSYNC | 5 60| *CAS1<br />
*CSYNC | 6 59| *CASX<br />
BLEO | 7 58| VDD<br />
CPUCLK/*VDS | 8 57| R/*W<br />
*RESET | 9 56| AD7<br />
*YS |10 55| AD6<br />
CBDR |11 54| AD5<br />
C7 |12 53| AD4<br />
C6 |13 52| AD3<br />
C5 |14 51| AD2<br />
C4 |15 50| AD1<br />
C3 |16 49| AD0<br />
C2 |17 48| RD7<br />
C1 |18 47| RD6<br />
C0 |19 46| RD5<br />
GND/DAC |20 45| RD4<br />
VDD/DAC |21 44| RD3<br />
G |22 43| RD2<br />
R |23 42| RD1<br />
B |24 41| RD0<br />
*INT |25 40| CD0<br />
*WAIT |26 39| CD1<br />
*HRESET |27 38| CD2<br />
MODE1 |28 37| CD3<br />
MODE0 |29 36| CD4<br />
*CSW |30 35| CD5<br />
*CSR |31 34| CD6<br />
CD7 |32 33| VBB<br />
+--------+<br />
</pre><br />
<br />
=Frequency=<br />
'''DIP64'''<br><br />
Set reader to FREQ, put black probe to GND, red probe to 63 and 64 to measure CPU clock<br />
<br />
=External links=<br />
[https://en.wikipedia.org/wiki/Yamaha_V9958 V9958 page on Wikipedia]<br />
<br />
=Files=<br />
<gallery widths="150px"><br />
File:V9958.pdf|V9958 Datasheet<br />
</gallery><br />
<br />
[[Category:CPU]]<br />
[[Category:SDIP64-750mil]]</div>
WikiSysop