SC91710AS SILAN [Silan Microelectronics Joint-stock], SC91710AS Datasheet - Page 8

• Manufacturer Part Number: SC91710AS
• Description: T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

C Pause Function
D Flash Function
Handfree Function operation:
A) To execute Handfree function: When HFO = ’ low’ , HFI pin is active, the Handfree function will be enabled
B) Reset Handfree function:
Operating flow chart of Handfree
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
Procedure
Dial out
Dial out
LNB
Procedure
Dial out
Dial out
LNB
(0) INITIAL STATE
(1) ON HKS HF LINE
(2) OFF HKS LINE
(3) OFF HKS HF LINE
(HFO = ’ high’ )
1. Reset
a. OFF-HOOK action.
b. When HFO = ’ high’ , a HFI pin is active again, the Handfree function will be reset (HFO=’ low’ ).
STATE NO.
:
:
:
:
:
:
:
:
Dt1, Dt2 ,… , Dtn, t
Dp1, Dp2, … Dpn , t
D1, D2… , Dn, P , C1, C2 … , Cn
Dt1, Dt2,… , Dtn , t
Dp1, Dp2,… , Dpn , t
C1, C2 … , Cn
D1, D2… , Dn, P, C1 … , Cn
D1, D2… , Dn, F, C1 … , Cn
PO
F
F
F
F
P
F
, Ct1, Ctn (in Tone mode)
, t
P
F
, Cp1 … , Cpn (in Pulse mode)
, t
FP
, Ct1 … , Ctn (in Tone mode)
FP
XMUTE
, Cp1 … , Cpn (in Pulse mode)
F
F
F
F
HFO
0
1
0
1
* F: Floating (Hi-impedance)
REV:2.2
SC91710A/B
Page 8 of 18
2007.03.07