peb3456e Infineon Technologies Corporation, peb3456e Datasheet - Page 139

• Manufacturer Part Number: peb3456e
• Description: Channelized T3 Termination, With Ds3 Framer, M13 Multiplexer, T1/e1 Framers And 256-channel Hdlc/ppp Controller
• Manufacturer: Infineon Technologies Corporation

4.13.2.2 T1/E1 Framer Interrupts
The framer interrupts are divided into type 0 and type I interrupts. The distinction is made
in bit 14 of the interrupt vector.
Interrupt Type 0
Interrupt Type I
AISS
LOSS
RAS
ES
SEC
Data Sheet
LAST
LAST
15
15
14
14
0
1
AISS LOSS RAS
13
0
One Second Tick
Alarm Indication Signal Status
The ‘Alarm Indication Signal Status’ interrupt vector is generated,
whenever the TE3-CHATT detects a change in the alarm indication. The
actual state, i.e. active/not active, is shown in FRS.AIS.
Loss of Signal Status
The ’Loss of Signal Status’ interrupt vector is generated, whenever the
TE3-CHATT detects a change in FRS.LOS.
Remote Alarm Status
The ’Remote Alarm Status’ interrupt vector is generated, whenever the
TE3-CHATT received remote alarm status changes. The actual state,
i.e. active/not active, is shown in FRS.RRA.
Errored Second
The 'Errored Second' interrupt vector is generated for the first errored
second event in a time interval of one second. Errored second events
are:
1. Loss of frame alignment (this includes indirectly AIS or Loss of Signal)
2. CRC error received (CRC-6 or CRC-4).
The ’One Second Tick’ interrupt vector is generated, when the internal
one second timer has expired. The timer is derived from the incoming
receive clock of the corresponding port.
12
0
T400 CRC
11
11
ES
10
10
PDEN
/AUX
SEC LLBS
9
9
FAS MFAS
8
8
139
PRBSS
7
7
6
6
00
00
B
B
5
5
4
4
Functional Description
PORT(4:0)
PORT(4:0)
PEB 3456 E
05.2001
0
0