PSB3186FV1.4 Infineon Technologies, PSB3186FV1.4 Datasheet - Page 101
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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To this effect the outputs of the D-channel controllers (e.g. ICC - ISDN Communication
Controller PEB 2070) are wired-or (negative logic, i.e. a “0” wins) and connected to pin
DU. The inputs of the ICCs are connected to pin DD. External pull-up resistors on DU/
DD are required. The arbitration mechanism must be activated by setting MODED.DIM2-
0=00x.
Figure 53
The arbitration mechanism is implemented in the last octet in IOM-2 channel 2 of the
IOM-2 interface
by software (µP access to the C/I channel) or by the ISAC-SX TE itself (transmission of
an HDLC frame in the D-channel). A software access request to the bus is effected by
setting the BAC bit (CIX0 register) to ’1’.
In the case of an access request, the ISAC-SX TE checks the Bus Accessed-bit BAC (bit
5 of last octet of CH2 on DU,
a logical ’1’. If the bus is free, the ISAC-SX TE transmits its individual TIC bus address
TAD programmed in the CIX0 register (CIX0.TBA2-0). The ISAC-SX TE sends its TIC
bus address TAD and compares it bit by bit with the value on DU. If a sent bit set to ’1’
is read back as ’0’ because of the access of another D-channel source with a lower TAD,
the ISAC-SX TE withdraws immediately from the TIC bus, i.e. the remaining TAD bits
are not transmitted. The TIC bus is occupied by the device which sends its address error-
free. If more than one device attempt to seize the bus simultaneously, the one with the
lowest address values wins. This one will set BAC=0 on TIC bus and starts D-channel
transmission in the same frame.
Data Sheet
D-channel
control
ICC (7)
ICC (2)
ICC (1)
.
.
.
Applications of TIC Bus in IOM-2 Bus Configuration
(Figure
TIC-Bus
on IOM-2
54). An access request to the TIC bus may either be generated
transceiver
Figure
S-
54) for the status "bus free“, which is indicated by
101
S-Interface
Description of Functional Blocks
NT
3086_09
U-Interface
PSB 3186
PSF 3186
2000-08-23
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