PEB2035-N Ver la hoja de datos (PDF) - Siemens AG
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PEB2035-N Datasheet PDF : 134 Pages
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PEB 2035
q External Multiframe Synchronization
The transmitter of the ACFA can be synchronized externally for multiframe begin (port XCHPY,
bit ACR.EXMF). This feature is required if the bit-robbed signals are routed through the switching
network and are inserted in transmit direction via the system interface.
q Wander Compensation
In receive direction and channel translation mode 0 the ACFA compensates wander with the
maximum wander amplitude of 142 UI peak to peak if enabled via bit ACR.SLM.
q Code Violation Counter Extension
The counter CVC can be switched to 10-bit length via bit EMOD.ECVE (status bits CECX.CV8
and CECX.CV9).
q Full Bauded Mode
Output pins XDOP, XDOM can be switched to full bauded mode via bit EMOD.XFB.
q Extended DMA Mode
DMA request lines RREQ, XREQ remain active until the third read/write access to the assigned
stack is provided (bit EMOD.EDMA).
q Disable AIS to System Interface
Automatic transmission of AIS to system internal highway (RDO) during asynchronous state can
be disabled via bit EMOD.DAIS. However, it remains programmable via bit CCR.SAIS.
q Corrections: generation of signal XREQ.
Important Remarks
q Unused control bits have to be programmed with a logical ‘0’, although they are set to logical ‘1’
when reading the assigned registers.
q In contrast to the Preliminary Delta Sheet 03.90. status bits CECX.CV8 and CECX.CV9 occupy
bit positions 4 and 5 of register CECX.
Semiconductor Group
134
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