EM91865B Ver la hoja de datos (PDF) - ELAN Microelectronics

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EM91865B

13 MEMORY TONE/PULSE DIALER WITH HF, HD, REDIAL AND VOLUME CONTROL FUNCTION

ELAN Microelectronics 

FUNCTION DESCRIPTIONS

EM91865

13 MEMORY TONE/PULSE DIALER WITH HF, HD, REDIAL

AND VOLUME CONTROL FUNCTION

Preliminary

Dialer Option selection

The EM91865 incorporated a special keyboard scanning function that is connecting a resistor ( typically is

560 KΩ ) on keyboard scan pin to select many telephone specifications.

The specifications are described as follow :

a. M/B ratio

K2

M/B ratio

NR

40:60

R-Vss 33:66

b. Auto Insert Pause time

K3

Auto Insert

Pause time

NR

Disable

R-Vss

Enable

d. Mode

K5

NR

R-Vss

Mode

Tone

Pulse

Normal Dialing :

Press the digital key directly on keyboard which number can be dialing out and stored in LNB memory auto

matically. Operating procedure described as following:

• To select Pulse or Tone mode.

• Off-Hook or turn on HF function.

• Keying d1,d2,....dn. The "d" expressed digital key pressed that include 1~9, *, 0, #, P, and P→T keys. The "n"

expressed unlimited.

• The numbers d1,d2,......, dn will be dialed out in Pulse or Tone mode as selection.

LNB Redial Function :

Storing :

In normal dialing mode, every digital key was entry which number will be stored in LNB memory automatically.

If entry digits are more than 32 digits, the redial function of LNB memory will be disabled, otherwise, these

numbers stored in LNB memory can be redial output.

Redialing :

EM91865 provide Redial and One Key Redial function

(1) Redial function

Off-Hook normal dialing directly keying "F" key (or ON-OFF Hook once) and key-in "RD" keyboard.

The numbers stored in LNB memory will be dialed out.

(2) One Key Redial function

Off-Hook normal dialing, if busy, press the "RD" key directly then the line will be broken about 1.2 sec

with Trp redial pause time and dial out the numbers stored in LNB memory automatically.

* This specification are subject to be changed without notice.

4.28.1999 4

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