NEO-ZMC2: Difference between revisions
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NEO-ZMC part: | NEO-ZMC part: | ||
*SDA0,SDA1,SDA8~SDA15: [[Z80]] address bus | *SDA0,SDA1,SDA8~SDA15: [[Z80]] address bus | ||
*MA11~ | *MA11~MA21: M ROM address outputs | ||
PRO-CT0 part, inputs: | PRO-CT0 part, inputs: | ||
Revision as of 22:42, 25 February 2019
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| Package | QFP80R |
| Manufacturer | 
|
| First use | 1994 ? |
| Used on | MV1FZS Cartridges... |
NEO-ZMC and PRO-CT0 in one package.
Found in second revision MVS boards (for the PRO-CT0 logic only), and AES cartridges.
Pinout
NEO-ZMC part:
- SDA0,SDA1,SDA8~SDA15: Z80 address bus
- MA11~MA21: M ROM address outputs
PRO-CT0 part, inputs:
- 12M: 12MHz clock, outputs next pixel on falling edge.
- C0~C31: C ROM data bus (2*16 bits). Gives all the pixel data needed for a 8 pixel line.
- H: When high, reverse bit order of pixels shifted out (used for sprites horizontal flipping)
- EVEN: Swap A/B pixels.
- LOAD: Latch C ROM data on rising edge of 12M.
Outputs:
- DOTA: High when pixel A is opaque (color > 0)
- DOTB: High when pixel B is opaque (color > 0)
- GAD0~GAD3: Pixel A color index
- GBD0~GBD3: Pixel B color index