HFC-S+ Cologne Chip AG, HFC-S+ Datasheet - Page 36

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HFC-S+

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

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The state machine is stuck to '0' after a reset. Writing a '0' to bit 4 of the STATES register restarts
the state machine.
In this state the HFC-S+ sends no signal on the S/T-line and it is not possible to activate it by
incoming INFOx.
NT mode:
The NT state machine does not change automatically from G2 to G3 if the TE side sends INFO3
frames. This transition must be activated each time by bit 7 of the STATES register.
Fix the NT state machine to state G3 when activated (by writing 13h into STATES register). This
prevents deactivation of NT mode S/T interface due to sporadically errors on NT input data.
important!
:Q^eQbi " !
Cologne
Chip

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