Delta Tau TURBO UMAC Manuale Utente
UMAC Turbo CPU/Communications Board Hardware Manual
Board Jumpers
14
E19: Watchdog Disable Jumper
E Point and
Physical Layout
Description
Default
Jump pin 1 to 2 to disable Watchdog timer (for test purposes only).
Remove jumper to enable Watchdog timer.
No jumper installed
E20
– E22: Power-Up/Reset Load Source
E Point &
Physical Layout
Description
Default
E20:
To load active memory from flash IC on power-up/reset/remove
jumper E20;
Jump E21 pin 1 to 2
Jump E22 pin 1 to 2.
jumper E20;
Jump E21 pin 1 to 2
Jump E22 pin 1 to 2.
Other combinations are for factory use only; the board will not
operate in any other configuration.
operate in any other configuration.
No E20 jumper
installed
installed
E21 and E22, jump
pin 1 to 2.
pin 1 to 2.
E21:
E22:
E23: Firmware Reload Enable
E Point and
Physical Layout
Description
Default
Install jumper to reload firmware through the communications port.
Remove jumper for normal operations.
No jumper installed
E25A
– E25C: Flash Memory Bank Select
E Point and
Physical Layout
Description
Default
E25A:
Remove all three jumpers to select flash memory bank with factory-
installed firmware.
installed firmware.
Use other configuration to select one of the seven other flash
memory banks.
memory banks.
No jumpers installed
E25B:
E25C: