PEB2254H-V14 Infineon Technologies, PEB2254H-V14 Datasheet - Page 285

• Manufacturer Part Number: PEB2254H-V14
• Manufacturer: Infineon Technologies

Specifications of PEB2254H-V14

• Operating Supply Voltage (typ): 5V
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

ES…
SEC…
XSLP…
LLBSC…
SLN…
SLP…
Semiconductor Group
Errored Second
This bit is set if at least one enabled interrupt source via IMR4 is set
during the time interval of one second. Interrupt sources of IMR4
register:
LFA = Loss of frame alignment detected
FER = Framing error received
CER= CRC error received
AIS = Alarm indication signal (blue alarm)
LOS = Loss of signal (red alarm)
CVE = Code violation detected
SLIP= Transmit Slip or Receive Slip positive/negative detected
Second
The internal one second timer has expired. The timer is derived from
the internal 16 MHz clock.
Transmit Slip Indication
A one in this bit position indicates that there is an error in the host
clock system. If the wander of the transmit route clock, which normally
is phase locked to a common submultiple of the system clock
(SCLKX), is too great, data transmission errors will occur. In that
case, the transmit speech memory has to be reset to its start position
by writing the initial value to the transmit time-slot counter XC1.XTO.
Line Loop Back Status Change
This bit is set to one, if the LLB actuate signal 00001 or the LLB
deactuate signal 001, resp., is detected over a period of 33,16 msec
with a bit error rate less than 1/100.
The LLBSC bit is also set to one, if the current detection status is left,
i.e., if the bit error rate exceeds 1/100.
The actual detection status can be read from the FRS1.LLBAD and
FRS1.LLBDD, resp.
Slip Negative
The frequency of the receive route clock is greater than the frequency
of SCLKR. A frame will be skipped. It will be set during alarm
simulation.
Slip Positive
The frequency of the receive route clock is less than the frequency of
SCLKR. A frame will be repeated. It will be set during alarm
simulation.
285
Operational Description T1
PEB 2254
11.96