Category:Chips: Difference between revisions

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*NEO-273 logic
*NEO-273 logic
*NEO-ZMC logic
*C ROM decryption
*C ROM decryption
*C/S ROM multiplexer
*C/S ROM multiplexer
*S ROM bankswitching
*S ROM bankswitching
*M ROM decryption (NEOCMC50 only)
*M ROM bankswitching
|[[File:Neocmc_7050_7042_pinout.png|x200px|center]]
|[[File:Neocmc_7050_7042_pinout.png|x200px|center]]
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Revision as of 12:52, 2 December 2011

Needed

SNK chips, both cart and CD systems

Picture Reference Description Found in
CD1 CD2 CDZ Pinout
NEO-BUF Dual 8-bit bidirectional buffer All All ?
File:Neo-buf pinout.png
 NEO-GRZ Graphics chip ?
NEO-YSA2 Audio subsystem chip All

SNK chips, AES/MVS

Picture Reference Description Found in
AES MVS Pinout
LSPC-A0 First generation graphics chip Some Some
LSPC2-A2 Second generation graphics chip Some Some
File:Lspc2-a2 pinout.png
File:Mvs 257.jpg
 NEO-257 (QFP64R) Quad 74HC257 Some
File:Neo-257 pinout.png
 NEO-B1 Second generation graphics chip
  • Sprite and FIX multiplexer
  • Line buffers
  • Palette arbiter
 Some Some
File:Neo-b1 pinout.png
 NEO-C1
  • Address decoder
  • Joystick inputs
 Some Some
File:Neo-c1 pinout.png
 NEO-D0 (QFP64R) Audio subsystem controller Some Some
File:Neo-d0 pinout.png
File:Brd dcr-t.jpg
 NEO-DCR-T ? Some
File:Mvs sdr-t.jpg
 NEO-SDR-T ? Some
NEO-E0 (QFP64R)
  • Vector table swapping
  • Memory card address translation
 Some Some
NEO-F0 (QFP64R)
  • Calendar access
  • Dip/cab switches, coin counters
  • LED marquee outputs
  • Slot selection
 Some
File:Neo-f0 pinout.png
 NEO-G0 (QFP64R)

AES specific ?

  • Palette data buffer
  • Memory card data buffer
 Some Some
File:Neo-g0 pinout.png
 NEO-ZMC2 (QFP80R)
  • Z80 Memory Controller
  • Tile serializer
 Carts Some
File:Neo-zmc2 pinout.png
 PRO-B0 First generation graphics chip Some Some
PRO-C0 ? Some Some
PRO-CT0 (DIP64) C ROM serializer and multiplexer Carts Some


Cartridge chips

Picture Reference Description Pinout
HD6301 (DIP40) Microcontroller
NEO-273 (QFP64R) C and S ROM address latch
File:Neo-273 pinout.png
 NEO-CMC
  • NEO-273 logic
  • NEO-ZMC logic
  • C ROM decryption
  • C/S ROM multiplexer
  • S ROM bankswitching
  • M ROM decryption (NEOCMC50 only)
  • M ROM bankswitching
PCM (QFP80R)
  • ADPCM bus latches
  • V ROM multiplexer
File:Pcm pinout.png
 NEO-PCM2
NEO-PVC P ROM decryption chip
NEO-SMA P ROM decryption chip
NEO-ZMC (SOIC24) Z80 Memory Controller
File:Neo-zmc pinout.png
File:Crt snk-9201.jpg
 SNK-9201 (DIP64) P ROM protection chip

SNK chips, CD only

Picture Reference Description Found in
CD1 CD2 CDZ Pinout
NEO-GRC Graphics chip All All ?
NEO-MGA
NEO-MGA-T
NEO-MGA-T2 		CD unit interface All All All
NEO-OFC Graphics chip All All ?
NEO-SFT Graphics related All All ?
NEO-SUD Z80 subsystem controler All All ?
File:Neo-sud pinout.png
 NEO-VOC PCM memory handler All All ?
File:Neo-voc pinout.png
 NEO-YSA Audio subsystem chip Some


Other chips

Picture Reference Description Found in
AES MVS CD1 CD2 CDZ
68HC000 (DIP64) 16bit CPU All Some
68HC000 (PLCC68) Some All All All
Sony CXA1145 RGB encoder All
Sony CXA1645 ? All ?
Sanyo LC78815 Stereo DAC ? All
Sanyo LC89515 CD host and error corrector All All ?
Sanyo LC8953 PUPPET All Some ?
Sanyo LC98000 PUPPET replacement Some ?
Nec UPD4990 Real Time Clock All
Yamaha YM2610 Sound synthesizer All All All Some
Yamaha YM3016 Audio DAC All All All Some
z80 (DIP40) 8bit CPU All Some
z80 (SOIC) Some All All All


Memory chips

Picture Reference Description Found in
LO Shrink lookup ROM All systems
SP-S2 MVS BIOS MVS systems
SM1 Embedded sound driver ROM
SFIX Embedded Fix ROM
NEO-EP0 AES BIOS AES systems
File:Cd2 top-sp1-1.jpg
 TOP-SP1-1 CD2 BIOS Top loading CD systems (LC8953 versions)
File:Cd2 top-sp1-2.jpg
 TOP-SP1-2 CD2 BIOS Top loading CD systems (LC98000 versions)
FRONT-SP1 CD1 BIOS Front loading CD systems

Subcategories

This category has only the following subcategory.

C

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