===== Hu6280 Netlist =====


==== Conventions used ====
{{  http://nfg.2y.net/grafx/HuChip.gif}}Throughout this page you'll find abbreviations and shorthand terms for a lot of connections.  Here's a guide:
^ Short ^ Long ^ Short ^ Long ^
|  Dxx  |  Data (number)  |  Axx  |  Address (number)  |
|  /WR  |  Write Enable   |  /OE  |  Output Enable  |
|  /CE  |  Chip Enable  |  NC  |  Not Connected  |
|  I/O  |  Input/Output  |  RAxx  |  RAM pin#  |

==== Hu6280 Netlist ====
^ Hu6280 - CPU + Sound ^^^^^^^^
^  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		  |  		  |    |