HFC-SUSB Cologne Chip AG, HFC-SUSB Datasheet - Page 73
![no-image](/images/no-image-200.jpg)
HFC-SUSB
Manufacturer Part Number
HFC-SUSB
Description
Isdn S/t HDLC Basic Rate Controller
Manufacturer
Cologne Chip AG
Datasheet
1.HFC-SUSB.pdf
(82 pages)
- Current page: 73 of 82
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863C EC2
8
8.1
Table 6: Activation/deactivation layer 1 for finite state matrix for NT
/
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Note 1: Timer 1 (T1) is not implemented in the HFC-S USB and must be implemented in software.
Note 2: Timer 2 (T2) prevents unintentional reactivation. Its value is 32ms (256 x 125µs). This implies
Note 3: After reset the state machine is fixed to G0.
Note 4: Bit 7 of the STATES register must be set to allow this transition.
:e\i " !
Event
State machine release
(Note 3)
Activate request
Deactivate request
Expiry T2
(Note 2)
Receiving INFO 0
Receiving INFO 1
Receiving INFO 3
State matrices for NT and TE
S/T interface activation/deactivation layer 1 for finite state matrix for NT
No state change
Impossible by the definition of peer-to-peer physical layer procedures or system internal reasons
Impossible by the definition of the physical layer service
that a TE has to recognize INFO 0 and to react on it within this time.
State number
State name
INFO
sent
(Note 1)
INFO 0
Reset
G0
G1
G2
]
]
]
]
]
Deactive
(Note 1)
(Note 1)
INFO 0
G1
G2
G2
]
]
|
|
/
Start timer T2
activation
Pending
(Note 1)
(Note 4)
INFO 2
G2
G4
G3
]
]
]
|
|
Start timer T2
INFO 4
Active
G3
G4
G2
]
]
|
|
/
deactivation
Pending
(Note 1)
INFO 0
G4
G2
G1
G1
]
]
|
|
Cologne
Chip
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