NEO-ZMC2: Difference between revisions

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[[File:mvs_zmc2.jpg|right|thumb|NEO-ZMC2 chip found on a 1FZS MVS board.]]
{{ChipInfo
|picture=mvs_zmc2.jpg
|pkg=QFP80R
|manu=fujitsu
|date=1994 ?
|gates=
|used_on={{PCB|MV1FZS}} [[Cartridges]]...
}}


[[NEO-ZMC]] and [[PRO-CT0]] in one package. The PRO-CT0 is a network of shift registers and multiplexers (32-bit [[C ROM]] bus to two 4 bpp pixel outputs).
{{Chipname|NEO-ZMC}} and {{Chipname|PRO-CT0}} in one package.


Found in second revision MVS boards (for the PRO-CT0 logic only) and AES carts.
Found in second revision [[MVS hardware|MVS]] boards (for the PRO-CT0 logic only), and AES cartridges.
 
=Pinout=
 
{{Pinout|NEO-ZMC2|640px}}
 
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


[[Category:Chips]]
[[Category:Chips]]

Revision as of 22:42, 25 February 2019

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


Edit this 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