STLC5412 View Datasheet(PDF) - STMicroelectronics
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STLC5412 Datasheet PDF : 74 Pages
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STLC5412
SFS = 0: SFSx is an input that synchronizes the
transmit superframe.
SFS = 1: SFSx is an output indicating the
Transmit Superframe. In NT mode
SFSx is always an output.
NTS LT / NT mode Select.
NTS = 0: LT mode selected
NTS = 1: NT mode selected
DMO D channel Transfer mode Select.(µW/DSI
only)
Significant only when DEN=1.
DMO = 1: D channel data is shifted in and out on
Dx and Dr pins in continuous mode at
16 kbit/s on the falling and rising
edges of DCLK respectively.
DMO = 0: D channel data is shifted in and out on
Dx and Dr pins in a TDM mode at the
BCLK frequency on the falling and
rising edges of BCLK respectively
when the assigned time-slots are
active.
T24D: 24ms timer disable (GCI only).
T24D = 1: The timer watches at the exchange on
MONITOR channel every time the UID
sends new byte. If it expires before
pre-acknoledgement, an abort
message is generated; In this last
case, the aborted message is lost.
T24D = 0: The timer is desable. This means for
instance that UID may wait an pre-
acknoledgement for ever.
DEN D channel port Enable. (µW/DSI only)
DEN = 0: D channel port disabled. D bits are
transferred on Br and Bx; Multiplexed
mode is selected automatically.
DEN = 1: D channel port (DX, DR, and DCLK
when DMO bit equal 1) is selected. D
bits are transferred on Dr and Dx in a
mode depending on DMO bit setting.
CID: C/I channel disable (GCI only).
CID = 0: TXACT and RXACT registers only
accessible via the C/I channel.
Others registers only accessible via
MONITOR channel.
CID = 1: All registers only accessible via the
MONITOR channel.
ETC 2B+D Data Extended Transparency channel.
ETC = 1: 2B+D channel transparency is
enabled as soon as the line is
superframe synchronized.
ETC = 0: 2B+D channel transparency is under
control of the on-chip state machine:
act bit equal one both directions.
BP1 Break Point 1 during activation(significative
only when NTS = 0: LT mode) .
BP1 = 1: During an activation attempt from the
loop, (before SL2 sending) UID waits
for an AR command to pursue
activation. It is recommended to set
BP1 equal 1 for repetor application.
BP1 = 0: The activation procedure
is
automatically processed without the
need of an AR command.
EIF Error Indication Filter.
Significant in NT mode only
EIF = 0: act bit is set to zero in the transmit
superframe in case of EI command,
even if EI is sent sporadically.
EIF = 1: act bit may be not set to zero in the
transmit superframe in case of EI
command with a duration of less than
36ms.
BP2 Break Point 2 during activation. Significant
only when NTS=0 (LT selected)
BP2 = 1: During a full activation procedure, UID
receiving act bit set to one in the
received SN3 signal, UID waits for an
AI command to send act bit equal one
in SL3 signal. It is recommended to set
BP2 equal 1 for repetor application.
BP2 = 0: The activation procedure described
above is automatically processed
without the need of an AI command.
BFH9D: Back from H9 disabled. (Significant in NT
mode only)
BFH9D = 0: UID is in H9 state (pending
deactivation) after reception of dea
bit = 0. It is waiting a loss of signal to
return in H1 state via H12.
BFH9D = 1: UID is H9 state (pending
deactivation) after reception of dea
bit = 0. It is waiting a loss of signal to
return in H1 state via H12, or dea bit
= 1; In this last case UID returns in
the previous state.
RR Repetor mode.
RR = 0:
UID activation/deactivation complies
with the standard requirements for NT1
or LT equipment depending on NTS bit
select. See state matrix for the detailed
behaviour of UID.
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