PSB3186FV1.4 Infineon Technologies, PSB3186FV1.4 Datasheet - Page 105
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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