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PEB2256HT Datasheet(PDF) 264 Page - Infineon Technologies AG

Part # PEB2256HT
Description  E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications
PDF  490 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

PEB2256HT Datasheet(HTML) 264 Page - Infineon Technologies AG

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FALC56 V1.2
PEB 2256
E1 Registers
Data Sheet
264
2002-08-27
If access to these registers is done without control of the interrupt ISR1.XMB the
registers should be written twice to avoid an internal data transfer error.
Note: A software reset (CMDR.XRES) resets these registers.
Port Configuration 1 to 4 (Read/Write)
Value after reset: 00H
RPC(2:0)
Receive multifunction port configuration
The multifunction ports RP(A to D) are bidirectional. After Reset these
ports are configured as inputs. With the selection of the pin function
the In/Output configuration is also achieved. The input function SYPR
may only be selected once, it must not be selected twice or more.
Register PC1 configures port RPA, while PC2
→ port RPB,
PC3
→ port RPC and PC4 → port RPD.
000 = SYPR: Synchronous Pulse Receive (Input)
Together with register RC(1:0) SYPR defines the frame begin
on the receive system interface. Because of the offset
programming the SYPR and the RFM pin function cannot be
selected in parallel.
001 = RFM: Receive Frame Marker (Output)
CMR2.IRSP = 0:
The receive frame marker is active high for one 2.048 MHz
period
during
any
bit
position
of
the
current
frame.
Programming of the bit position is done by using registers
RC(1:0). The internal time slot assigner is disabled. The RFM
offset calculation formula has to be used.
CMR2.IRSP = 1:
Internally generated frame synchronization pulse sourced by
the DCO-R circuitry. The pulse is active low for one 2.048 MHz
period.
70
PC1
RPC12
RPC11
RPC10
XPC13
XPC12
XPC11
XPC10
(80)
PC2
RPC22
RPC21
RPC20
XPC23
XPC22
XPC21
XPC20
(81)
PC3
RPC32
RPC31
RPC30
XPC33
XPC32
XPC31
XPC30
(82)
PC4
RPC42
RPC41
RPC40
XPC43
XPC42
XPC41
XPC40
(83)



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