Thanks to Maurice for spilling this info ;)

large connector:
1  GND
2  GND
3  GND
4  GND
5  GND
6  D3     data
7  D2     data
8  D4     data
9  D1     data
10 D5     data
11 D0     data
12 D6     data
13 A0     address
14 D7     data
15 A1     address
16 PBSW   ?
17 A2
18 A10
19 A3
20 /ROMOE output enable to rom bank
21 A4
22 A11
23 A5
24 A9
25 A6
26 A8
27 A7
28 A13
29 A12
30 A14
31 A15
32 +5V
33 +5V
34 +5V
35 GND
36 GND
37 GND
38 GND
39 1MHZ      turn turbo off
40 /64MODE   scpu in 128 mode?
41 /ANMI     an nmi? :)
42 VPA       VPA from cpu
43 /MLB      MLB from cpu
44 /AIRQ     IRQ
45 /ABT      BT from cpu?
46 /WAIT     wait state
47 /VPB      VPB from cpu
48 /OSRAM>   output select for ram
49 /ARES     reset
50 /RAM128>  128-mode ram select
51 VDA       vda from cpu
52
53 M/X       m/x from cpu
54
55 /AWR      write
56 /TRIBUS   tristate bus
57 PHI2IN    ph2 in
58 EMUL      emul mode from cpu
59 +5V
60 /BUSRDY   bus ready

-Maurice
Small connector
1  GND
2  GND
3
4
5  /CART    ?
6
7  +5V
8  +5V
9  DMAIN    dma to scpu
10 CLKIN    clock control to scpu (the ram card PROVIDES the clock!)
-Maurice

d0	11
d1	9
d2	7
d3	6
d4	8
d5	10
d6	12
d7	14

a0	13
a1	15
a2	17
a3	19
a4	21
a5	23
a6	25
a7	27
a8	26
a9	24
a10	18
a11	22
a12	29
a13	28
a14	30
a15	21
-jbev