Connector:Expansion port

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EXPANSION: 50 way Delta range.

1  Sound     2  GND
3  A15       4  A14
5  A13       6  A12
7  A11       8  A10
9  A9        10 A8
11 A7        12 A6
13 A5        14 A4
15 A3        16 A2
17 A1        18 A0
19 D7        20 D6
21 D5        22 D4
23 D3        24 D2
25 D1        26 D0
27 VCC       28 *MREQ
29 *M1       30 *RFSH
31 *IORQ     32 *RD
33 *WR       34 *HALT
35 *INT      36 *NMI
37 *BUSRQ    38 *BUSAK
39 READY     40 *BRST
41 *RSET     42 *ROMEN
43 ROMDIS    44 *RAMRD
45 RAMDIS    46 CURSOR
47 LPEN      48 *EXP
49 GND       50 CLK4