Bis3_Io_Rdbkupr; Bis3_Stat_Fifo; Figure 17 Pmc Biserial-Iii I/O Readback Port; Figure 18 Pmc Biserial-Iii Switch Port - Dynamic Engineering PMC-BiSerial-III HW2 User Manual

BIS3_IO_RDBKUPR

[$C4] BiSerial III I/O Upper Read-Back Port read only
DATA BIT
FIGURE 17
The I/O lines can be read at any time. The value is not filtered in any way. If the
transceivers are set to TX by the parallel port or state-machine then the read-back
value will be the transmitted value. If the transceivers are set to receive then the port
values will be those received by the transceivers from the external I/O. The upper bits
are presented on this port.

BIS3_STAT_FIFO

[$24] BiSerial III Switch Port read only
DATA BIT
31-24
23-16
15-0
FIGURE 18
The Switch Read Port has the user bits. The user bits are connected to the eight dip-
switch positions. The switches allow custom configurations to be defined by the user
and for the software to identify a particular board by its switch settings and to configure
it accordingly.
1
0
7 0
I/O Upper Read-Back Port
1-0
User Switch Port
The Dip-switch is marked on the silk-screen with the positions of
the digits and the '1' and '0' definitions. The numbers are hex
coded. The example shown would produce 0x12 when read (and
shifted down).
Embedded Solutions
DESCRIPTION
I/O Data 33-32
PMC BISERIAL-III I/O READBACK PORT
DESCRIPTION
Spare
sw7-0
Spare
PMC BISERIAL-III SWITCH PORT
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