PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 306

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

CRCI…
XCRCI…
RDIS…
Semiconductor Group
ESF: – FMR0.SRAF = 0: pattern ‘1111 1111 0000 0000…’ in data
F72: bit2 = 0 in every speech channel per frame.
Release: The alarm will be reset when above conditions are no longer
detected.
RRAM = 1 (BER 10**-3 )
Detection
F4:
F12: – FMR0.SRAF = 0: bit 2 = 0 in 255 consecutive speech
ESF: – FMR0.SRAF = 0: pattern ‘1111 1111 0000 0000…’ in data
F72: bit 2 = 0 in 255 consecutive speech channels.
Release
Depending on the selected multiframe format the alarm will be reset
when QuadFALC does not detect
– the ‘bit 2 = 0’ condition for three consecutive pulseframes
– the ‘FS bit’ condition for three consecutive multiframes (F12),
– the ‘DL pattern’ for three times in a row (ESF).
Automatic CRC6 Bit Inversion
If set, all CRC bits of one outgoing extended multiframe are inverted
in case a CRC error is flagged for the previous received multiframe.
This function is logically ORed with RC0.XCRCI.
Transmit CRC6 Bit Inversion
If set, the CRC bits in the outgoing data stream are inverted before
transmission. This function is logically ORed with RC0.CRCI.
Receive Data Input Sense
0
1
(all formats if selected),
– FMR0.SRAF = 1: S-bit of frame 12 is forced to ‘1’
– FMR0.SRAF = 1: bit2 = 0 in every speech channel
bit2 = 0 in 255 consecutive speech channels.
– FMR0.SRAF = 1: S-bit of frame 12 is forced to ‘1’
– FMR0.SRAF = 1: bit 2 = 0 in 255 consecutive speech
Inputs: RDIP, RDIN active low, input ROID is active high
Inputs: RDIP, RDIN active high, input ROID is active low
link channel
channels.
link channel
channels
306
Operational Description T1 / J1
PEB 22554
09.98