Mount Ing Holes - Motorola MB68k-100 User Manual

68000 Motherboard User's Manual
M68K_A12 68000 A12
M68K_A14 68000 A14
M68K_A16 68000 A16
M68K_A18 68000 A18
M68K_A20 68000 A20
M68K_A22 68000 A22
M68K_D0 68000 D0
M68K_D2 68000 D2
M68K_D4 68000 D4
M68K_D6 68000 D6
M68K_D8
68000 D8
M68K_D10 68000 D10
M68K_D12 68000 D12
M68K_D14 68000 D14
STACKODD45 Unused with test
point
STACKODD47 Unused with test
point
STACKODD49 Unused with test
point
STACKODD51 Unused with test
point
STACKODD53 Unused
STACKODD55 Unused
STACKODD57 Unused
STACKODD59 Unused
VCC Supply Positive
GND Supply Negative
7.15.2

Mount ing Holes

The motherboard also offers ten mounting holes for securing the MB68k-100
motherboard, as well as any mezzanine boards installed. These mounting holes have an
inner diameter of 0.126" (3.2mm). Their positions are shown in Figure 12. Suitable
mounting hardware is listed in Table 21 below.
17 18 M68K_A13
19 20 M68K_A15
21 22 M68K_A17
23 24 M68K_A19
25 26 M68K_A21
27 28 M68K_A23
29 30 M68K_D1
31 32 M68K_D3
33 34 M68K_D5
35 36 M68K_D7
37 38 M68K_D9
39 40 M68K_D11
41 42 M68K_D13
43 44 M68K_D15
45 46 STACKODD46
47 48 STACKODD48
49 50 STACKODD50
51 52 STACKODD52
53 54 STACKODD54
55 56 STACKODD56
57 58 STACKODD58
59 60 STACKODD60
61 62 VCC
63 64 GND
Page 41 of 54
Rev. A
68000 A13
68000 A15
68000 A17
68000 A19
68000 A21
68000 A23
68000 D1
68000 D3
68000 D5
68000 D7
68000 D9
68000 D11
68000 D13
68000 D15
Unused with test
point
Unused with test
point
Unused with test
point
Unused with test
point
Unused
Unused
Unused
Unused
Supply Positive
Supply Negative