I/O Map
The following table lists the I/O definitions of the VIP2K Membership Card.
Q
Video Terminal: serial output (reversed)
EF1
DMA indicator
EF2
CTL key
EF2
SHIFT key
EF2
Video Terminal: serial input (reversed)
OUT 6
Enable graphics
OUT 7
Disable graphics
INP 1-5
Keyboard input keycol 1-5
INP 6
Enable graphics
INP 7
Disable graphics