PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 348

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Errored Block Counter (READ)
EBCL
EBCH
EBC15…EBC0… Errored Block Counter
Semiconductor Group
7
7
EBC15
EBC7
In ESF format this 16-bit counter will be incremented once per
multiframe if a multiframe has been received with a CRC error or an
errored frame alignment has been detected. CRC and framing errors
will not be counted during asynchronous state. The error counter will
not roll over.
In F4/12/72 format an errored block contain 4/12 or 72 frames.
Incrementing is done once per multiframe if framing errors has been
detected.
During alarm simulation, the counter is incremented in ESF format
once per multiframe and in F4/12/72 format only one time.
Clearing and updating the counter is done according to bit
FMR1.ECM.
If this bit is reset the error counter is permanently updated in the
buffer. For correct read access of the error counter bit DEC.DEBC
has to be set. With the rising edge of this bit updating the buffer will
be stopped and the error counter will be reset. Bit DEC.DEBC will
automatically be reset with reading the error counter high byte.
If FMR1.ECM is set every second (interrupt ISR3.SEC) the error
counter will be latched and then automatically reset. The latched error
counter state should be read within the next second.
348
Operational Description T1 / J1
0
0
EBC0
EBC8
PEB 22554
(x56)
(x57)
09.98