PMCDIO64
Copyright
2000 BVM Ltd.
8
5. Configuration
5.1 Link
Positions
Figure 4 Link Positions
5.2 Link
Definitions
The following link definitions refer to the link positions as the shown above, i.e. with the PMC Front
Panel connector to the right. Pin 1 is denoted by a filled in pin position. Link positions marked with a
!
below show the default configuration.
5.2.1
LK1 to LK8 I/O Pull-Up Enable
The digital I/O signals to the PMCDIO64 may be pulled-up to +5V via 10K
Ω
resistor networks in
groups of 8 if link selected. See the table below for link to I/O equivalence.
OPERATION
LINK
FITTED
OMITTED
LK1
Pull-up IO0 - IO7 via 10K
Ω
!
IO0 - IO7 NOT pulled-up
LK2
Pull-up IO8 - IO15 via 10K
Ω
!
IO8 - IO15 NOT pulled-up
LK3
Pull-up IO16 - IO23 via 10K
Ω
!
IO16 - IO23 NOT pulled-up
LK4
Pull-up IO24 - IO31 via 10K
Ω
!
IO24 - IO31 NOT pulled-up
LK5
Pull-up IO32 - IO39 via 10K
Ω
!
IO32 - IO39 NOT pulled-up
LK6
Pull-up IO40 - IO47 via 10K
Ω
!
IO40 - IO47 NOT pulled-up
LK7
Pull-up IO48 - IO55 via 10K
Ω
!
IO48 - IO55 NOT pulled-up
LK8
Pull-up IO56 - IO63 via 10K
Ω
!
IO56 - IO63 NOT pulled-up