Hardware pinouts information and cables schemes

C16/+4 Expansion Bus pinout

motherboard connector

bookmark this page

Available on Commodore C16, C116 and +4 computers



Pin Name Description
1GNDGround
2+5V+5 VDC
3+5V+5 VDC
4/IRQInterrupt
5R/WRead/Write (1=Read, 0=Write)
6C1HIGHExternal Cartridge Chip Selects C1 High
7C2LOWExternal Cartridge Chip Selects C2 Low (reserved)
8C2HIGHExternal Cartridge Chip Selects C2 High (reserved)
9/CS1Chip Select Line 1
10/CS0Chip Select Line 0
11/CASColumn Address Strobe
12MUXDRAM address multiplex control signal
13BABus Available (Low=DMA)
14D7Data 7
15D6Data 6
16D5Data 5
17D4Data 4
18D3Data 3
19D2Data 2
20D1Data 1
21D0Data 0
22AECAddress Enable Code
23EAIExternal Audio In
24PHI 2Artificial Phi 2 signal
25GNDGround
AGNDGround
BC1LOWExternal Cartridge Chip Selects C1 Low
C/RESETReset
D/RASRow Address Strobe
EPHI 0Artificial Phi 0 Signal
FA15Address 15
HA14Address 14
JA13Address 13
KA12Address 12
LA11Address 11
MA10Address 10
NA9Address 9
PA8Address 8
RA7Address 7
SA6Address 6
TA5Address 5
UA4Address 4
VA3Address 3
WA2Address 2
XA1Address 1
YA0Address 0
Zn/cNot connected
AAn/cNot connected
BBn/cNot connected
CCGNDGround

PHI 2: Address valid on the rising edge, data valid on the falling edge


This information should be correct, but may be not. Please, help us to improve this document!
Is this document CORRECT or INCORRECT? Your opinion will be used to establish document status (showed at the bottom).
Pinouts.ru > Motherboard connectors pinouts >  Pinout of C16/+4 Expansion Bus and layout of connector
Document status: unknown
Source(s) of this and additional information: Usenet posting in comp.sys.cbm, Pinout specs for cbm machines needed by Lonnie McClure; SAMS Computerfacts CC8 Commodore 16.
Article in C"T September 1986, from Hardware Book
0 reports
Last updated at Sat Jun 25 2005. Submit additions or corrections for this document. Is this document correct or incorrect? What is your opinion?
[Discuss at the forum] [Back to index] [SUBMIT new pinout]
This page contain parts under Copyright © 2000-2007 by pinouts.ru team.
No any portion of this webpage may be reproduced in any form without visible direct link to this page provided. 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.
7043 hits since March 4, 2005