NEO-MGA: Difference between revisions
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=Pinout= | =Pinout= | ||
[[File:Neo- | [[File:Neo-mga_pinout.png|700px]] | ||
[[File:Neo-mga.odg]] | [[File:Neo-mga.odg]] | ||
Revision as of 11:47, 6 March 2017
| File:Cd1 neo-mga.jpg | |
| Package | QFP160 |
| Manufacturer | 
|
| First use | 1994 ? |
| Used on | CDROM-2 board, MV1A... |
NEO-MGA is found in CD systems and some late MVS boards:
- NEO-MGA in the CD1 model (front loading).
- NEO-MGA-T in the CD2 model (top loading) and MV1A MVS boards. Probably the same but made by Toshiba.
- NEO-MGA-T2 in the CDZ, probably with a different pinout and maybe stuff related to the copy protection system.
It is used for communication with the CD drive, for handling 68k program and work DRAM access, some address decoding and for buffering serial CDDA data.
Pinout
Signals
- DRM*, RAS, CAS, WRITE: See TC514400 DRAM datasheet.
- X*: See LC8953 datasheet.