User's Manual

Turbo PMAC2 PCI Ultralite HRM
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E-Point Jumpers 16
E17 – E18: Serial Port Select
E-Point and
Physical Layout
Location
Description
Default
E17
C-3
Jump E17 pin 1 to 2 to select RS-232 serial
data input from J5.
Jump E17 pin 2 to 3 to select RS-422 serial
data input from J5A.
Pins 1 – 2 jumpered
E18
Jump E18 pin 1 to 2 to select RS-232 serial
handshake input from J5.
Jump E17 pin 2 to 3 to select RS-422 serial
handshake input from J5A
Pins 1 – 2 jumpered
E19: Watchdog Disable Jumper
E-Point and
Physical Layout
Location
Description
Default
E19
B-7
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 and
Physical Layout
Location
Description
Default
E20
E22
B-5
Remove jumper E20;
Jump E21 pin 1 to 2;
Jump E22 pin 2 to 3;
To read flash IC on power-up/reset
Other combinations are for factory use only;
the board will not operate in any other
configuration.
No E20 jumper installed;
E21 and E22 jump pin 1
to 2
E23: Firmware Reload Enable
E-Point and
Physical Layout
Location
Description
Default
E23
B-5
Jump pin 1 to 2 to reload firmware through
serial or bus port
Remove jumper for normal operation.
No jumper installed