Specifications

9261-7974 Issue 06
ESFIRECODER - Emergency Services Firecoder
Page 14
www.multitone.com
Bhh - Backlight Control
The backlight defaults to coming on whenever a text is sent to the display. This can be
modified using this command:
Command Function
B00 Backlight always off
B01 Backlight on for 1 second
B02 Backlight on for 2 seconds
…
BFE Backlight on for 254 seconds
BFF Backlight always on
Utttttttt - User Defined Character
A single character (\u) on the display can have a user-defined font using this command. Eight
characters are used; the low 5 bits of each define each of the 8 rows of the character. If no
user-defined character is stored, a diamond is displayed. This information is stored in non-
volatile memory.
W - Watchdog Control
The watchdog can be enabled, disabled or reset using this command
Character Function
W Reset Watchdog Timer
W0 Disable Watchdog
W1 Enable Watchdog, 1 second timeout
…
WF Enable Watchdog, 15 second timeout
If the watchdog is enabled, but not reset within the configured time, the reset output will be
asserted to reset the PC.
I - Input Command
This command will request the current input states, returning i00hh. It is normally not needed
as an i status line will be sent whenever an input changes. Input bits: