PEB2256HT datasheet(412/490 Pages) INFINEON

412 / 490 page

FALC56 V1.2

PEB 2256

T1/J1 Registers

Data Sheet

412

2002-08-27

LFA

Loss of Frame Alignment

The flag is set if pulseframe synchronization has been lost. The

conditions are specified by bit FMR4.SSC(1:0). Setting this bit causes

an interrupt (ISR2.LFA).

The flag is cleared when synchronization has been regained.

Additionally interrupt status ISR2.FAR is set with clearing this bit.

RRA

Receive Remote Alarm (Yellow Alarm)

The flag is set after detecting remote alarm (yellow alarm). Conditions

for setting/resetting are defined by bit RC0.RRAM.

With the rising edge of this bit an interrupt status bit ISR2.RA is set.

With the falling edge of this bit an interrupt status bit ISR2.RAR is set.

The bit is set during alarm simulation and reset if FRS2.ESC = 0, 3,

4,5,7 and no alarm condition exists.

LMFA

Loss Of Multiframe Alignment

Set in F12 or F72 format when 2 out of 4 (or 5 or 6) multiframe

alignment patterns are incorrect.

Additionally the interrupt status bit ISR2.LMFA is set.

Cleared after multiframe synchronization has been regained. With the

falling edge of this bit an interrupt status bit ISR2.MFAR is generated.

FSRF

Frame Search Restart Flag

Toggles when no framing candidate (pulse framing or multiframing) is

found and a new frame search is started.

PEB2256HT Datasheet(PDF) 412 Page - Infineon Technologies AG