PSB3186FV1.4 Infineon Technologies, PSB3186FV1.4 Datasheet - Page 105
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PSB3186FV1.4
Manufacturer Part Number
PSB3186FV1.4
Description
ISDN Interface ISDN
Manufacturer
Infineon Technologies
Datasheet
1.PSB3186FV1.4.pdf
(207 pages)
Specifications of PSB3186FV1.4
Control Type
HDLC
Data Rate
192 Kbps
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Operating Supply Voltage
3.3 V
Package / Case
MQFP-64
Lead Free Status / Rohs Status
Details
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3.7.6
The IOM-2 interface can be switched off in the inactive state, reducing power
consumption to a minimum. In this deactivated state is FSC = ’1’, DCL and BCL = ’0’ and
the data lines are ’1’.
The IOM-2 interface can be kept active while the S interface is deactivated by setting the
CFS bit to "0" (MODE1 register). This is the case after a hardware reset. If the IOM-2
interface should be switched off while the S interface is deactivated, the CFS bit should
be set to ’1’. In this case the internal oscillator is disabled when no signal (info 0) is
present on the S bus and the C/I command is ’1111’ = DIU. If the TE wants to activate
the line, it has first to activate the IOM-2 interface either by using the "Software Power
Up" function (IOM_CR.SPU bit) or by setting the CFS bit to "0" again.
The deactivation procedure is shown in
(Deactivate Indication Upstream) the layer 1 of the ISAC-SX TE responds by transmitting
DID (Deactivate Indication Downstream) during subsequent frames and stops the timing
signals synchronously with the end of the last C/I (C/I0) channel bit of the fourth frame.
Figure 57
The clock pulses will be enabled again when the DU line is pulled low (bit SPU in the
IOM_CR register), i.e. the C/I command TIM = "0000" is received by layer 1, or when a
non-zero level on the S-line interface is detected (if TR_CONF0.LDD=0). The clocks are
turned on after approximately 0.2 to 4 ms depending on the oscillator.
Data Sheet
IOM -2
FSC
DU
DCL
DD
DR
DI
Activation/Deactivation of IOM-2 Interface
Deactivation of the IOM-2 Interface
DR
DI
DR
DI
DR
DI
DR
DI
105
DC
DI
Figure
B1
DC
DI
57. After detecting the code DIU
Description of Functional Blocks
D
B2
DC
DI
ITD09655_s.vsd
CIO
D CIO
DC
DI
IOM -2
Deactivated
PSB 3186
PSF 3186
2000-08-23
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