Справочная информация и описание кабеля
Mac to C64 Nullmodem
The RS-232 standard on the C64 is a little bit strange. It
uses inverted TTL level for the signals. The RS-422 ports on the
Macintosh has both an inverted and non-inverted input. By using
the inverted instead of non-inverted the inverted C64 level is
back to normal.
(at the Computer)
(to the C64).
8 PIN MINI-DIN MALE to the Macintosh.
DZM 12 DREH to the C64 UserPort.
Mac
C64
GND+RXD-
4+5
1+12+A+N
GND
RXD+
8
M
TXD (PA2)
TXD+
6
B+C
RXD (FLAG2+PB0)
D+E
RTS+DTR (PB1+PB2)
Note: Larry Anderson suggested that RXD- should not be connected. However earlier information indicated that it should be connected. Please inform us if the above connection is sufficient.
GND+RXD-
4+5
1+12+A+N
GND
Contributor:
Joakim Цgren,
Pierre Olivier,
Larry Anderson
Source:
Usenet posting in comp.sys.cbm, A very simple C64 to Macintosh serial cable by Chris Baird
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-13