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參數(shù)資料
| 型號： | STLC5412P |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 2B1Q U INTERFACE DEVICE ENHANCED WITH DECT MODE |
| 中文描述： | 2B1Q U接口裝置加強(qiáng)與無繩模式 |
| 文件頁數(shù)： | 46/74頁 |
| 文件大?。?/td> | 655K |
| 代理商： | STLC5412P |
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MOB= 1: All
interrupts issued
RXM56
RXEOC
masked. It is still possible to read
theseregisters via RXOH.
CTC
CorruptedTransmit CRC Control
from
RXM4,
and
CR5
are
CTC = 0: Allows the normal calculation of the
CRCfor thetransmitteddatato theline.
CTC = 1: The CRC result transmitted to the line
in the next Superframe is inverted.
This ensure transmission of corrupted
CRC as long as CTC equal 1.
ConfigurationRegister 5 (CR5)
Significantin GCI only.
After reset:FFH
IO4
IO3
IO2
IO1
D4
D3
D2
D1
IO4, IO3, IO2, IO1
Input/Outputselect for I/O pins
(14, 15, 16, 18)
IOi = 1: IOi pin is selected as an input. An on-
chip pull up resistor ensures a stable
logical 1 at power-on reset or if IOi pin
is not connectedto stablesource.
IOi = 0: IOi pin is selectedas an output.
Each
I/O
pin
independentlyfrom the others.
D4, D3, D2, D1
I/O pin logical level com-
mand/status.
D4, D3, D2, D1 bits are associated with IO4, IO3,
IO2, IO1pins respectively.When IOi pin is selected
as an output,the associatedDi bit can be written to
control the logical level of the output; Di equals 1
commands a high level on IOi. When IOi pin is se-
lected as an input, the associated Di bit indicates
the status of the input; Di equals one indicates a
high level on IOi. CR5registeris bufferedin the in-
terruptstack each time a statuschangeis detected
on an input. It is also possible to read-back at any
timeCR5.
can
be
selected
ConfigurationRegister 6 (CR6)
After reset:0FH
T15E
ACTA
UT
PUPAUT
QM
AIS
TFB0
RFS
LFS
T15E
Timer 15 secondsextension
T15E = 0: The on chip T4 or T6 timer is done for
the ANSI standard:15 seconds.
T15E = 1: The on chip T4 or T5 timer is
extendedto 20 seconds.
Note: the T15D bit in CR3 register enables or dis-
ables the T4/T5 timer independently of theT15E
bit.
ACTAUT:
ActivationAutomatic
ACTAUT = 1: If UID is powered up, a 10KHz
tone
from the
activation without need of extra
commands (like AR), except when
QM (Quiet mode) is enterred.
ACTAUT = 0 A detection of a 10KHz tone from
the
line
activation: UID waits a primitive
command(normalyAR).
line starts the
does
not
start
the
PUPAUT
PUPAutomatic
PUPAUT = 1: A 10KHz tone from the line allows
an automaticpower up of the UID.
Notes if ACTAUT is also set to 1, from a power
down state a 10KHz tone automatically starts the
activation.
PUPAUT = 0:A detection of a 10KHz tone from
the line does not power up the
device: UID waits a PUP primitive
command.
QM
Quietmode.
QM = 1: has the same effect of the QM primitive
command enterred in TXACT register.
An or logic is done with the QM bit and
the QM primitive. The goal of this bit is
to allow a quiet mode for an UID in
power down state in someapplications.
QM = 0: no effect.
AIS
AnalogInterfaceSelect.
AIS = 1: selects an analog interface using 27mh
transformer.
AIS = 0: selects an analog interface using 15mh
transformer
TFB0
Transmit febe equal 0
TFB0 = 0: A permanent febe bit = 0 is sent on
the line as long as TFB0= 0
TFB0 = 1: The febe bit sent on the line is
normalycomputed.
RFS
Remotefebe select.
Please report to the figure 10. RFS is useful in
repetor application to transfert or not the anoma-
lies from the second line section to the first line
section and viceversa.
STLC5412
46/74
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