Freescale Semiconductor 94001480400/D manual System States and LED Indications, User Interface

User Interface

Freescale Semiconductor, Inc.

Inc.

SEMICONDUCTOR, INC. 2005

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005

2.2 System States and LED Indications

The following information relates to the figure below showing LED Flash Patterns and Coherence.

The system state is indicated by either a green or a red LED. The red LED is used for indicating the battery state exclusively, whereas the green LED indicates all other system state information.

On theleft side in Figure 2-1,all possible state transitions are shown with the associated LED flash patterns. Each rectangle represents a time slot of two seconds, which is infinitely repeated. Green/red indicates LED on, while white indicates LED off. The green LED is shown above the red LED pattern. The exact ON times are listed in Table 2-2.

To the right, LED flash patterns associated with events are shown. These are only generated once.

2.3 System Events and Audio Indications

Several significant system events, and a few system states, are indicated by audible indications. In the case of events, the audio indication is only played once (as for the LED indications), whereas system states are identified by repeated audio indications.

In Table 2-3, all audio indications are listed and defined. In addition to the actual frequencies and duration, an intuitive description of their appearance is included. This should give a good idea of how each indication sounds since just listing the frequencies may be a little too abstract for practical purposes.

Figure 2-1. LED Flash Patterns and Coherence

Freescale Semiconductor,

ARCHIVED BY FREESCALE

SYSTEM STATES

	Off			Config. Mode		Config. - Very Low Bat
			Conn. Scan (Idle)				Scan - Very Low Bat
			Outgoing Conn. Outgoing - Very Low Bat
				Connected		Connected - Very Low Bat
Ultra Low Bat					Call Active	Call Active - Very Low Bat
	(any	state)
			Call Active - Mute			Call Active - VLB & Mute

EVENTS

(one-shot)

Reset to Default

Pairing Success

Table 2-2. LED Indications

System States	Green ON Time	Red ON Time
Off	Off	Off
Ultra low batt.	Off	200 ms on, 800 ms off, 200 ms on
Config. mode	Solid	Off
Config. mode—batt. very low	Solid	200 ms on
Connection scan (Idle)	200 ms on
Connection scan (Idle)—batt. very low	200 ms on	Same as green LED

2-2HeadsetMOTOROLA

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