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W91550DNF-1

13-MEMORY TONE/PULSE DIALER WITH LCD AND LOCK FUNCTIONS

Winbond 

W91550DN SERIES

a. The R/P key can execute the redial function only as the first key-in after off-hook; otherwise,

it will invoke the pause function.

b. The redial memory content will be D1, D2, D3, ..., Dn.

c. If redialing length oversteps 32 digits, the redialing function will be inhibited.

2. OFF HOOK (or ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn , Busy, R

a. The one key redialing function timing diagram is shown in Figure 3.

b. If the dialing of D1 to Dn is finished, pressing the R key will cause the pulse output pin

DP to go low for 2.2 seconds break time and 0.6 seconds pause time will be added

automatically.

c. If the pulses of the dialed digits D1 to Dn have not finished, R will be ignored.

Number Store

1. OFF HOOK , (or ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn , E (many times

same as one time), Mn (or A , Ln , or Ln ), ON HOOK

D1, D2, ..., Dn will be stored in memory location Mn (or Ln) and will be dialed out.

2. OFF HOOK , (or ON HOOK & HFI ¡õ ), E , D1 , D2 , ..., Dn , E

(could be skipped), Mn , ON HOOK

OFF HOOK (or ON HOOK & HFI ¡õ ), E , D1 , D2 , ..., Dn , E

A (could be skipped), Ln , ON HOOK

a. D1, D2, ..., Dn will be stored in memory location Mn (or Ln) but will not be dialed out.

b. R/P and */T keys can be stored as a digit in memory, but R/P key cannot be the first

digit. In store mode, R/P is the pause function key.

c. The store mode is released after the store function is executed or when the state of the hook

switch changes or the flash function is executed.

3. OFF HOOK , E , Mn , (or A , Ln , or Ln )

The redial content will be copied to memory location Mn (or Ln).

Save

If the S/ M pin = VDD, the save function is selected:

1. OFF HOOK , (or ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn , CONVERSATION,

E , D1' , D2' , ..., Dn' , SAVE

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