Datasheet

Blackfin EZ-Extender Manual 2-7
EZ-Extender Hardware Reference
General Frame Sync Routing Switch (SW3)
Frame synchronization signals FSYNC1 and FSYNC2 get configured through
the SW3 DIP switch settings, as illustrated in Figure 2-1 on page 2-2.
The FSYNC1 signal can be set by either the PF2 programmable flag or the
processor’s
PPI0_SYNC1 signal. The FSYNC2 signal can be set by either the
PF3 programmable flag or the PPI0_SYNC2 signal. Table 2-6 and Table 2-7
depict the available options. Note that the source of the PPI0_SYNC1 and
PPI0_SYNC2 signals is dependent on the EZ-KIT Lite to which you
connect.
L
If the PF2 or PF3 programmable flags are used, ensure the flags are
not used for other purposes on the EZ-KIT Lite board (the mother
board).
Table 2-6. FSYNC1 Source Settings
SW3 Position 1
RX_CLK
SW3 Position 2
TX_CLK
FSYNC1 Source
OFF OFF FSYNC1 signal is used
OFF ON FSYNC1 signal is not used
ON OFF FSYNC1 = PF2
– – All others, do not use
Table 2-7. FSYNC2 Source Settings
SW3 Position 3
RX_CLK
SW3 Position 4
TX_CLK
FSYNC2 Source
OFF OFF FSYNC2 signal is used
OFF ON FSYNC2 signal is not used
ON OFF FSYNC2 = PF3
– – All others, do not use