w6692 Winbond Electronics Corp America, w6692 Datasheet - Page 20

• Manufacturer Part Number: w6692
• Description: Pci Bus Isdn S/t-controller
• Manufacturer: Winbond Electronics Corp America

shown in Fig.7.2.
There are three wiring configurations according to I.430 : point-to-point, short passive bus and extended pass bus. They are
0
1
0
0
1
0
D L F L
L F L
D L F
B
2 bits offset
2
B
2
B
2
B
B
TE
2
NT
1
B
B
L B
2
F = Framing bit
L = DC balancing bit
D = D channel bit
E = D channel echo bit
F
1
B
B
A
2
1
B
1
B
= Auxiliary framing bit or Q-bit
B
2
1
NT
B
1
B
TE
B
2
1
1
B
B
L D L F
1
1
B
B
1
1
B
FIG.7.1 FRAME STRUCTURE AT S/T INTERFACE
B
1
1
E D A F
B
1
B
1
L D L F
L
A
N B
A
2
B
L
2
B
2
B
48 bits in 250 s
2
B
2
B
2
B
B
2
2
B
B
2
2
B
E D MB
2
B
-20 -
2
B
2
N = Bit set to a binary value N=F
B1 = Bit within B channel 1
B2 = Bit within B channel 2
A = Bit used for activation
S = Bit used for S channel
M = Multiframe bit
B
2
B
2
1
B
B
2
1
B
L D L B
1
B
1
B
1
B
1
B
1
1
B
B
1
W6692 PCI ISDN S/T-Controller
1
B
1
E D
B
Publication Release Date:
1
B
1
B
1
B
1
B
1
S B
Preliminary Data Sheet
L D
A
2
B
2
B
2
B
2
B
2
B
2
L
B
2
B
2
E D
Sep 30, 1999
Revision 0.9