HFC-S+ Cologne Chip AG, HFC-S+ Datasheet - Page 64

• Manufacturer Part Number: HFC-S+
• Description: Isdn S/t HDLC Basic Rate Controller
• Manufacturer: Cologne Chip AG

863 C
9.2
The binary organistation of a single GCI channel frame is described below. C4IO clock frequency is
4.096MHz.
Figure 11: Single channel GCI format
B1
B2
M
D
C/I
MR
MX
&$ _V '
D O U T
C 4 IO
F 0 IO
D IN
b 7
GCI frame structure
B-channel 1 data
B-channel 2 data
Monitor channel data
D-channel data
Command/indication bits for controlling activation/deactivation and for additional control
functions
Handshake bit for monitor channel
Handshake bit for monitor channel
b 6
b 5
T im e S lo t 0
b 4
B 1
b 3
b 2 b 1
b 0
b 7
b 6
b 5
T im e S lo t 1
b 4
B 2
b 3
b 2
b 1
G C I F ra m e
b 0
b 7
b 6
b 5
T im e S lo t 2
b 4
M
b 3
b 2
b 1
b 0 b 1 b 2 b 4 b 3 b 2 b 1
D
T im e S lo t 3
C /I
M
R
M
X
T im e S lo t 4
B 1
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Cologne
Chip
T im e S lo t 3 2
B 1