Beeper And Decode Led Signals From The Pl3307 - Motorola PL3307 Integration Manual

Beeper and Decode LED Signals from the PL3307

The BEEPER_OUT and HOST_DEC_LED* output lines provide user feedback but do not provide enough
current drive for the actual beeper and LED device. Additional buffering is required.
The PL3307's beeper output ranges from 2.352 KHz to 2.963 KHz. The beeper output is a 50% duty cycle
square wave at maximum volume, 12.5% at low volume.
If using a non-inverting driver to buffer the HOST_DEC_LED* line, connect the output of the driver to the
cathode (-) end of the LED.
User Interface Indications
Table 1-4
Description
Trigger pull
No decode
Wakeup
Decode
Snapshot started
Snapshot is complete
Bootup
Transmission error
Entry error
Defaults set
Parameter entered
Number entry expected
Indication
Beeper
No sound No light
Middle Tone Flash of light
Low Tone Blinking
Low Tone No light
Low Tone, Middle No light
Tone, High Tone
Four Low Tones No light
Low Tone, High Tone Flash of light
High Tone, Low Tone, Flash of light
High Tone, Low Tone
High Tone, Low Tone Flash of light
Getting Started
Decode LED
TRIGGER_PULLED
NODECODE_MSG
WAKEUP
DECODE
SNAPSHOT_START
SNAPSHOT_COMPLETE
BOOTUP
TRANSMIT_ERROR
ENTRY_ERROR
DEFAULTS_SET
PARAM_ENTERED
NUMBER_EXPECTED
1 - 5
SSI Event