Motherboard connectors pinouts  > obsolete computers pinouts
50 pin MALE EDGE connector at the computer
Pin Name Dir Description
1+5v-->Power, 300mA
2/CNTRL2<--Game adapter control signal
3+12v-->Power, 100mA
4-12v-->Power, 50mA
5/CNTRL1<--Game adapter control signal
6/WAIT<--Z80 WAIT
7/RST<--Z80 RST
8CPU CLK-->Buffered 3.58MHz system clock
9A15-->Buffered Address bus
10A14-->"
11A13-->"
12A12-->"
13A11-->"
14A10-->"
15A9-->"
16A8-->"
17A7-->"
18A6-->"
19A5-->"
20A4-->"
21A3-->"
22A2-->"
23A1-->"
24A0-->"
25/RFSH-->RAM expansion refresh
26/EXCSR<--Video-CPU write select
27/M1-->Z80 M1
28/EXCSW<--CPU-Video write select
29/WR-->Z80 WR
30/MREQ-->Z80 MREQ
31/IORQ-->Z80 IORQ
32/RD-->Z80 RD
33D0I/OBuffered Data Bus
34D1I/O"
35D2I/O"
36D3I/O"
37D4I/O"
38D5I/O"
39D6I/O"
40D7I/O"
41CSOUND<--Audio input signal
42/INT<--Z80 INT
43/RAMDIS<--Disable user RAM
44/ROMDIS<--Disable basic ROM
45/BK32-->Enable bank 32 Memory (8000-ffff)
46/BK31-->Enable bank 31 Memory (0000-7FFF)
47/BK22-->Enable bank 22 Memory (8000-FFFF)
48/BK21-->Enable bank 21 Memory (0000-7FFF)
49GND-System Ground
50GND-System Ground

unknown connector
There are no any reports for this pinout! You may rate this document by clicking the button below.

Is this pinout
Source(s) of this and additional information: SVI 328 Mk II User Manual; Rob Gill
This page contain parts under Copyright © 2000-2015 by pinouts.ru team.
No portion of this webpage may be reproduced in any form without providing visible HTML link to Old.Pinouts.ru . Webmaster permission required in any other cases.
Efforts have been made to ensure this page is correct, but it is the responsibility of the user to verify the data is correct for their application.