W91030 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W91030

CALLING LINE IDENTIFIER

Winbond 

Preliminary W91030B

Tip/Ring

1st Ring

Ch. seizure Mark

Message

A

B

C

D

E

F

INTN

...

...

2nd Ring

RNGON

SLEEP

Note 1

FSKE

Note 2

FCDN

FDRN

DCLK

DATA

...

...101010...

Note 3 Note 4

...

Data

Note 5

Figure 9-3. Input and Output Timing of Bellcore On-hook Data Transmission

A = 2 sec typical

B = 250−500 mS

C = 250 mS

D = 150 mS

E = Depends on data length

MAX C + D + E = 2.9 to 3.7 sec

F ≥ 200 mS

Notes:

1. The CPE designer may choose to wake up the W91030B only after the end of the RNGON signal to conserve power for a

battery operated CPE. The delay from RNGON to SLEEP (and FSKE) is the reactive time of the microcontroller.

2. The CPE designer may choose to set FSKE to be always high while the CPE is on-hook when the FSK signal is expected.

3. The microcontroller places the W91030B in a sleep condition after the last byte (check sum) has been decoded or FCDN has

become inactive.

4. The W91030B may not be woken up at this ring signal after the FSK data has been processed.

5. If the W91030B has been woken up at the 2nd ring, the microcontroller times out if FCDN is not activated and then puts the

W91030B into a sleep condition.

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