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W91578DNF

23-MEMORY TONE/PULSE DIALER WITH AUTOREDIAL RTC AND LCD DISPLAY FUNCTIONS

Winbond 

W91570DN SERIES

Auto Redial

If ARD pin = VDD or VSS, the auto redial function is selected:

OFF HOOK (or ON HOOK & HFI ¡õ ), OKR

Time Zone (A) Time Zone (B) Time Zone (C)

Break

Time

waiting interval

Pause Auto dialing

Time

Time Zone (A)

Time Zone (B)

repeat till

n-1 times.

Break

Time

waiting interval

Pause

Auto dialing

Time

1. During time zone (B) the keypads are inhibited, and in time zone (A), (C) the auto redial can be

interrupted by pressing any keypad or by going off-hook.

2. The visible dialing number will be blinking during the waiting time interval.

3. If OKR is the first key-in after off-hook or handfree then the first break and pause time will be

ignored.

4. The following show examples to interrupt auto redial function:

OFF HOOK (or ON HOOK & HFI ¡õ ), OKR , Any Keypad (at break time and

waiting interval)

5. If ON HOOK & HFI ¡õ , OKR , OFF HOOK

a. When in time zome (A) or (C), the auto-redial function will be interrupted and changed to hook

mode after OFF HOOK

b. When in time zome (B), the auto-redial functiion will continue and changed to hook mode after

OFF HOOK

6. If ON HOOK & HFI ¡õ , OKR , HFI ¡õ (any time) is entered, the dialer will be off-line.

7. The auto redial function timing diagram is shown in Figure 11(a), 11(b).

8. The calling time will auto-count when the auto-redial function is interrupted in break time zone (A)

and (C).

TIM

OFF HOOK (or ON HOOK & HFI ¡õ

), D1 , D2 , ..., Dn (or Redialing or

Repertory dialing 1 ), CONVERSATION

1. If no key is pressed after dialing is finished, the LCD will display counting time after 6 seconds.

2. If the dialing sequence D1, D2, ..., Dn has not finished, TIM will be ignored.

3. The timer will be initialized by flash and auto redial.

- 15 -

Publication Release Date: May 1997

Revision A2

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