Table of Contents

HU 6270 Netlist

Conventions used

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#

The Netlist

Hu6270 - Graphics
Pin Title Hu6280 Exp Bus HuCard Port Hu6260 MiscIC Notes
01 60
02 /WR 63 B4 34 77 3 27
03 /OE 62 A6 26 78 3 22
04 NC
05 NC
06 NC
07 NC
08 NC
09 NC
10 NC
11 Ground Cap to +5v
12 NC
13 D7 56 B08 23 05 Held High
14 D6 55 A08 22 06 Held High
15 D5 54 C09 21 07 Held High
16 D4 53 B09 20 08 Held High
17 D3 52 C10 19 09 Held High
18 +5v
19 D2 51 B10 17 10 Held High
20 D1 50 C11 16 11 Held High
21 D0 49 C12 15 12 Held High
22 A10 72 Also Hu6270 25
23 A09 73
24 /RESET 11 B22 Card 36 To +5 via R104 + D101
25 A10 72 Also Hu6270 22
26 B11 71
27 NC
28 A12 70
29 A13 69
30 B14 68
31 A15 67
32 +5v
33 GND
34 A16 66
35 A17 65
36 A18 64
37 A19 63
38 A20 62
39 *WE 12 27
40 *OE 12 22
41 I/O 0 1 11
42 I/O 1 1 12
43 I/O 2 1 13
44 I/O 3 1 15
45 I/O 4 1 16
46 I/O 5 1 17
47 +5v
48 I/O 6 1 18
49 I/O 7 1 19
50 I/O 0 2 11
51 I/O 1 2 12
52 I/O 2 2 13
53 I/O 3 2 15
54 I/O 4 2 16
55 Ground
56 I/O 5 2 17
57 I/O 6 2 18
58 I/O 7 2 19
59 RA14 12 10
60 RA13 12 09
61 RA12 12 08
62 RA11 12 07
63 RA10 12 06
64 RA09 12 05
65 RA08 12 04
66 RA07 12 03
67 RA03 12 25
68 RA02 12 24
69 RA00 12 21
70 RA01 12 23
71 GND
72 +5v
73 RA06 12 02
74 RA04 12 26
75 RA05 12 01
76 *CE 12 20
77 44 Held High
78 12 B20 Held High
79 A0 6 B12 14 74
80 A1 5 C13 13 75