W6691CD WINBOND [Winbond], W6691CD Datasheet - Page 34

• Manufacturer Part Number: W6691CD
• Description: ISDN S/T Interface Transceiver
• Manufacturer: WINBOND [Winbond]

IS: continuous 96 KHz pulse signal or single 2 KHz
signal
7.2.4.2 States Transition Diagram in LT-S Mode
SCP/SSP
RST
SCP/SSP
i0/i1/i3
RES
i0/i1/i3
Test Mode
Reset
Fig.7.7 layer 1 activation/deactivation state diagram in LT-S
IS
REST
i0
TI
pulse
ARD
ARD
ARD
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DRA
DDR/ARD
DDR/ARD
DDR/ARD
^i3
i0/i1/i3
DDR
G4 pending deact
Lost of Frame
DDR
G2 Pending Act
DDR
i0/i3
I0/i1
i3
i0
^i3
G3 Activated
G4 Await deact
G1 Deact
ARD or i1
i3
DDR
i3
DRIU
SSYN
ARIU
i0
i2
DRIU
i4
AIU
AIU
i0 during 25ms or T2 expire
i0
i2
i0
Preliminary W6691
DDR
DDR
DDR
DDR
Publication Release Date: Sep 2001
Revision 1.1