 | Attention article en cours de rédaction. |
Le Hu6280 est le coeur des consoles NEC développé par Hudson Soft. C'est le processeur. C'est un dérivé du célèbre microprocesseur 6502 auquel hudson Soft a ajouté des fonstion supplémentaires.
IMAGE
Le brochage du CPU HuC6280 trouvé après de longues heures de recherche... Ce brochage est en cours de validation. Il a été trouvé sur le site suivant : http://nfggames.com/wiki/doku.php?id=schematics:hu6280_netlist&rev=1130639335
Ci dessous une copie des information du site d'origine en attendant la version validée :
==== Conventions used ====
| Short | Long |
|---|
| Dxx | Data (number) |
| /WR | Write Enable |
| /CE | Chip Enable |
| I/O | Input/Output |
| Axx | Address (number) |
| /OE | Output Enable |
| NC | Not Connected |
| RAxx | RAM pin |
==== Hu6280 Netlist ====
| Pin | Title | Hu6260 | Exp Bus | HuCard Port | Hu6270 | Notes |
| 01 | A5 | | B15 | 09 | | |
| 02 | A4 | | C15 | 10 | | |
| 03 | A3 | | C14 | 11 | | |
| 04 | A2 | 76 | B13 | 12 | | |
| 05 | A1 | 75 | C13 | 13 | 80 | |
| 06 | A0 | 74 | B12 | 14 | 79 | |
| 07 | GND | | | | | |
| 08 | +5v | | | | | |
| 09 | NC | | | | | |
| 10 | Clock | | | | | See Clock Note |
| 11 | /RESET | | B22 | 36 | 24 | To +5 via R104 + D101 |
| 12 | | | B20 | | 78 | |
| 13 | NC | | | | | |
| 14 | HSM | | B03 | 35 | | Speed: Low = Slow |
| 15 | +5v | | | | | |
| 16 | GND | | | | | |
| 17 | LeftA | | A01 | | | See Left Audio Note |
| 18 | RightA | | C01 | | | See Right Audio Note |
| 19 | +5v | | | | | |
| 20 | MixA | | | | | See Mix Audio Note |
| 21 | GND | | | | | |
| 22 | Control | | | | | FL102 |
| 23 | NC | | | | | |
| 24 | Control | | | | | FL103 |
| 25 | Control | | | | | FL104 |
| 26 | Control | | | | | FL105 |
| 27 | NC | | | | | |
| 28 | NC | | | | | |
| 29 | NC | | | | | |
| 30 | CD Detect | | B02 | | | |
| 31 | Control | | | | | FL106 |
| 32 | Control | | | | | FL107 |
| 33 | NC | | | | | |
| 34 | NC | | | | | |
| 35 | NC | | | | | |
| 36 | NC | | | | | |
| 37 | NC | | | | | |
| 38 | NC | | | | | |
| 39 | NC | | | | | |
| 40 | NC | | | | | |
| 41 | NC | | | | | |
| 42 | NC | | | | | |
| 43 | /IRQ2 | | B21 | 37 | | R103 (Held High) |
| 44 | | | | | 77 | Held High |
| 45 | | | B05 | | | R114 |
| 46 | NC | | | | | |
| 47 | +5v | | | | | |
| 48 | GND | | | | | |
| 49 | D0 | 12 | C12 | 15 | 21 | Held High |
| 50 | D1 | 11 | C11 | 16 | 20 | Held High |
| 51 | D2 | 10 | B10 | 17 | 19 | Held High |
| 52 | D3 | 09 | C10 | 19 | 17 | Held High |
| 53 | D4 | 08 | B09 | 20 | 16 | Held High |
| 54 | D5 | 07 | C09 | 21 | 15 | Held High |
| 55 | D6 | 06 | A08 | 22 | 14 | Held High |
| 56 | D7 | 05 | B08 | 23 | 13 | Held High |
| 57 | +5v | | | | | |
| 58 | GND | | | | | |
| 59 | | 79 | C04 | | | 6k (R155) to +5v |
| 60 | | 01 | | | | |
| 61 | /CE1 | | | | | 3 20 |
| 62 | /OE | 78 | B07 | 26 | 03 | |
| 63 | /WR | 77 | B04 | 34 | 02 | |
| 64 | A20 | | B19 | 24 | | Doubles as /CE? |
| 65 | A19 | | C19 | 03 | | |
| 66 | A18 | | A04 | 33 | | |
| 67 | A17 | | C05 | 32 | | |
| 68 | A16 | | B18 | 04 | | |
| 69 | A15 | | C18 | 05 | | |
| 70 | A14 | | A05 | 31 | | |
| 71 | A13 | | C06 | 30 | | |
| 72 | A12 | | B17 | 06 | | |
| 73 | A11 | | C07 | 27 | | |
| 74 | A10 | | A07 | 25 | | |
| 75 | GND | | | | | |
| 76 | +5v | | | | | |
| 77 | A09 | | A06 | 28 | | |
| 78 | A08 | | B06 | 29 | | |
| 79 | A07 | | B16 | 07 | | |
| 80 | A06 | | C16 | 08 | | |
