Emerson 752I Computer Hardware User Manual


 
Monitor: Basic Operation
10006024-04 Katana®752i User’s Manual
15-3
BASIC OPERATION
The Katana®752i monitor performs various configuration tasks upon power-up or reset.
This section describes the monitor operation during initialization of the Katana®752i
board. The flowchart (see
Fig. 15-2) illustrates the power-up and reset sequence (bold text
indicates environment variables).
Power-Up/Reset Sequence
At power-up or board reset, the monitor performs hardware initialization, diagnostic rou-
tines, autoboot procedures, free memory initialization, and if necessary, invokes the com-
mand-line.
Prior to the console port being available, the monitor will display a four-bit binary value
(1=on, 0=off) on front panel LEDs 1 through 4 to indicate the power-up status. In the event
of a specific initialization error, the LED pattern will Flash and the board initialization will
halt. Refer to
Fig. 15-2 for the LED values at the various initialization steps.