PEB2256H-V12 Infineon Technologies, PEB2256H-V12 Datasheet - Page 102
PEB2256H-V12
Manufacturer Part Number
PEB2256H-V12
Description
IC INTERFACE LINE 3.3V 80-MQFP
Manufacturer
Infineon Technologies
Datasheet
1.PEB2256H-V12.pdf
(490 pages)
Specifications of PEB2256H-V12
Applications
*
Interface
*
Voltage - Supply
*
Package / Case
80-SQFP
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PEB2256H-V12
PEB2256H-V12IN
PEB2256H-V12IN
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
PEB2256H-V12
Manufacturer:
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10 000
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4.5
The FALC56 offers a flexible feature for system designers where for transmit and receive
direction different system clocks and system pulses are necessary. The interface to the
receive system highway is realized by two data buses, one for the data RDO and one for
the signaling data RSIG. The receive highway is clocked on pin SCLKR, while the
interface to the transmit system highway is independently clocked on pin SCLKX. The
frequency of these working clocks and the data rate of 2.048/4.096/8.192/16.384 Mbit/s
for the receive and transmit system interface is programmable by SIC1.SSC1/0, and
SIC1.SSD1, FMR1.SSD0. Selectable system clock and data rates and their valid
combinations are shown in the table below
Table 23
System Data Rate
2.048 Mbit/s
4.096 Mbit/s
8.192 Mbit/s
16.384 Mbit/s
x = valid, -- = invalid
Generally the data or marker on the system interface are clocked off or latched on the
rising or falling edge (SIC3.RESR/X) of the SCLKR/X clock. Some clocking rates allow
transmission of time slots in different channel phases. Each channel phase which shall
be active on ports RDO, XDI, RP(A:D) and XP(A:D) is programmable by SIC2.SICS(2:0),
the remaining channel phases are cleared or ignored.
The signals on pin SYPR together with the assigned time slot offset in register RC0 and
RC1 define the beginning of a frame on the receive system highway.The signal on pin
SYPX or XMFS together with the assigned time slot offset in register XC0 and XC1
define the beginning of a frame on the transmit system highway.
Adjusting the frame begin (time slot 0, bit 0) relative to SYPR/X or XMFS is possible in
the range of 0 to 125 µs. The minimum shift of varying the time slot 0 begin can be
programmed between 1 bit and 1/8 bit depending of the system clocking and data rate,
e.g. with a clocking/data rate of 2.048 MHz shifting is done bit by bit, while running the
FALC56 with 16.384 MHz and 2.048 Mbit/s data rate it is done by 1/8 bit.
A receive frame marker RFM can be activated during any bit position of the entire frame.
Programming is done with registers RC1/0. The pin function RFM is selected by
PC(4:1).RPC(2:0) = 001. The RFM selection disables the internal time slot assigner, no
offset programming is performed. The receive frame marker is active high for one
Data Sheet
System Interface in E1 Mode
System Clocking and Data Rates (E1)
Clock Rate
2.048 MHz
x
--
--
--
Clock Rate
4.096 MHz
x
x
--
--
102
Clock Rate
8.192 MHz
x
x
x
--
Functional Description E1
Clock Rate
16.384 MHz
x
x
x
x
FALC56 V1.2
PEB 2256
2002-08-27
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