5302 IP Phone User Guide

Elements of your phone

Element

Function

1.

Alphanumeric

There are 12 alphanumeric keys: the digits 0-9, * and #. These keys are used

 

keypad

for the following purposes:

 

 

y Entering a directory number (DN) and PIN during start up of an un-

 

 

initialized set

 

 

y Dialing a number in order to establish an outgoing call.

 

 

y The # is used for end of dialing sequence

 

 

y Sending a DTMF tone to a remote party or parties.

2.

Message / Ringing

Flashes to alert you to an incoming call or a voice message that is waiting for

 

LED

retrieval.

3.

Speaker

Plays paging messages and ringing for incoming calls.

4.

Four

Four speed dial numbers (1-4) can be programmed for these keys. The

 

programmable

associated number (if one has been assigned) is automatically dialed by

 

keys

pressing this key. One of the keys can also be used to dial the voice mail server

 

 

if its number is programmed to the key.

 

 

Contact your system administrator to have the keys programmed.

5.

Redial key

The Redial key is used to automatically redial the last number.

 

6.

Transfer key

The Transfer key is used to initiate a call transfer.

 

7.

Hold key

The Hold key is used to place an active call on hold.

8.

Line 2 key

The Line 1 and Line 2 keys select the primary and secondary lines of the phone.

9.

Line 1 key

A line is selected to:

y Make a call

 

 

 

 

y Answer an incoming call on the line (if there is an active call on the other

 

 

line, it is automatically placed on hold)

 

 

y Resume a held call

 

 

The LED associated with the key indicates the status of the line. See Indicator

 

 

Feedback of page 10 for more information.

10.

Volume up

The Volume up/down keys are used to increase/decrease the volume of the

following:

11.

Volume down

y Ringer

 

 

 

 

y Handset

 

 

y Speaker

 

 

There are 8 volume settings.

7

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NEC 5302 manual Elements of your phone, Element Function
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5302 specifications

The NEC 5302 is a pivotal microcontroller that showcases NEC's commitment to providing versatile and high-performance solutions for embedded systems. Released in the early 1980s, the 5302 is a member of the NE6xx series, which has seen widespread adoption across various industries. With a robust architecture, the NEC 5302 has become a foundational component in numerous applications, including automotive, telecommunications, and consumer electronics.

One of the primary features of the NEC 5302 is its 8-bit processing capability, which enables efficient data handling and control operations. The microcontroller operates at a clock frequency of up to 4 MHz, allowing it to execute instructions quickly while maintaining low power consumption. This attribute makes it particularly suitable for battery-operated devices.

The architecture of the NEC 5302 is characterized by a sophisticated instruction set that includes a plethora of arithmetic, logical, and control operations. Its registered-based design enhances the efficiency of data processing by minimizing the need for external bus transactions. Additionally, the microcontroller typically features a direct memory access (DMA) capability, which facilitates faster data transfer and processing without burdensome CPU intervention.

Another noteworthy aspect of the NEC 5302 is its extensive input/output (I/O) versatility. The microcontroller usually supports multiple I/O ports, enabling seamless connectivity to various peripherals. This flexibility allows developers to design systems that can interact with sensors, displays, and communication modules, resulting in rich user experiences and robust functionality.

The NEC 5302 is built with integrated features that enhance its performance. It commonly includes timers, pulse width modulation (PWM) capabilities, and interrupts, which allow for precise timing and responsive interactions in real-time applications. Moreover, the microcontroller’s capability to handle multiple tasks concurrently through its interrupt system enhances its multitasking prowess.

In terms of memory support, the NEC 5302 typically accommodates a range of memory types, including ROM, RAM, and EPROM, thus providing developers with the flexibility to choose the appropriate storage medium for their applications. This adaptability is essential for developing firmware that can be updated as per evolving requirements and standards.

In conclusion, the NEC 5302 represents a significant advancement in the microcontroller landscape, combining a robust architectural design with extensive features that cater to diverse application needs. Its 8-bit architecture, efficient processing capabilities, versatile I/O options, and integrated functionalities solidify its standing as a key player in embedded systems and microcontroller technology.
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