Pinouts of Connectors

Spectravideo SVI318/328 Expansion Bus connector pinout

layout
schematic diagram
add this page to bookmarks

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
8 CPU CLK --> Buffered 3.58MHz system clock
9 A15 --> Buffered Address bus
10 A14 --> "
11 A13 --> "
12 A12 --> "
13 A11 --> "
14 A10 --> "
15 A9 --> "
16 A8 --> "
17 A7 --> "
18 A6 --> "
19 A5 --> "
20 A4 --> "
21 A3 --> "
22 A2 --> "
23 A1 --> "
24 A0 --> "
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
33 D0 I/O Buffered Data Bus
34 D1 I/O "
35 D2 I/O "
36 D3 I/O "
37 D4 I/O "
38 D5 I/O "
39 D6 I/O "
40 D7 I/O "
41 CSOUND <-- 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)
49 GND - System Ground
50 GND - System Ground

This information should be correct, but may be not. You can help us to improve this webpage!
You can confirm this document to be correct (be careful), or report an error in document (error may be described in the following webpage). Result of your submission will be used for calculating document status shown at the bottom of this page.
Pinouts.ru > Different motherboard connectors pinouts >  Pinout of Spectravideo SVI318/328 Expansion Bus connector and layout of connector

Source(s): SVI 328 Mk II User Manual; Rob Gill
Document status: unknown
mark as erroneous!
mark as correct		 0 report(s)
Click one of this links to change document status.
[Discuss at the forum] [Back to index] [Add new pinout]
[Report an error or update]
This information is maintained by pinouts.ru team and provided as a guideline only.
Efforts have been made to ensure it is correct, but it is the responsibility of the user
to verify the data is correct for their application.
45 hits since February 12, 2005