IDT82V2048S Integrated Device Technology, IDT82V2048S Datasheet - Page 16

• Manufacturer Part Number: IDT82V2048S
• Description: Octal T1/e1 Short Haul Line Interface Unit With Single Ended Option
• Manufacturer: Integrated Device Technology

Table-7 AIS Condition
Table-5 Configuration of the Line Code Rule
IDT82V2048S OCTAL T1/E1 SHORT HAUL LIU WITH SINGLE ENDED OPTION
2.4.6
recovery, as shown in Table-7.
2.4.7
HDB3 code violation, as shown in Figure-7,
the three kinds of errors are reported in both host mode and hardware
mode with B8ZS/HDB3 line code rule used. In host mode, the e-CZER
Table-6 LOS Condition in Clock Recovery Mode
1.
AIS Detected
AIS Cleared
Detected
LOS levels at device RTIPn and RRINGn for differential receive termination and RTIPn for Single Ended receive termination. For more detail regarding the LOS parameters, please
Cleared
refer to
Alarm Indication Signal is available only in host mode with clock
The device can detect excessive zeros, bipolar violation and B8ZS/
CODE
High
Low
LOS
LOS
ALARM INDICATION SIGNAL (AIS) DETECTION
ERROR DETECTION
Receiver Characteristics on page
All channels in B8ZS/HDB3
All channels in AMI
Less than 3 zeros contained in each of two
consecutive 512-bit stream are received
3 or more zeros contained in each of two
consecutive 512-bit stream are received
Amplitude
Amplitude
Hardware Mode
(Register LAC defaulted to ‘0’)
Continuous Intervals
Line Code Rule
(1)
(1)
Density
ITU G.775 for E1
49.
Single Ended below typical 158 mVp
Single Ended exceed typical 197 mVp
Differential
Differential
Figure-8
below typical 200 mVp
12.5% (16 marks in a sliding
128-bit period) with no more
than 99 continuous zeros
exceed typical 250 mVp
and Figure-9. All
ANSI T1.231 for T1
Less than 3 zeros contained in a 512-bit
stream are received
3 or more zeros contained in a 512-bit
stream are received
CODE in GCF
175
(Register LAC set to ‘1’)
ETSI 300 233 for E1
0
0
1
1
0
1
16
and e-CODV are used to determine whether excessive zeros and code
violation are reported respectively. When the device is configured in AMI
decoding mode, only bipolar violation can be reported.
pin CVn/RDNn is used as error report output (CVn pin).
rized in Table-8.
CODEn in e-CODE
The error detection is available only in single rail mode in which the
The configuration and report status of error detection are summa-
below typical 200 mVp
below typical 158 mVp
12.5% (4 marks in a sliding
32-bit period) with no more
than 15 continuous zeros
exceed typical 250 mVp
exceed typical 197 mVp
0/1
0/1
0
1
1
0
G.775 for E1
Standard
32
Less than 9 zeros contained in a 8192-bit stream (a ones
density of 99.9% over a period of 5.3 ms) are received
9 or more zeros contained in a 8192-bit stream are
received
Host Mode
SINGn in e-SING
INDUSTRIAL TEMPERATURE RANGES
below typical 200 mVp
below typical 158 mVp
12.5% (4 marks in a sliding
32-bit period) with no more
than 15 continuous zeros
exceed typical 250 mVp
exceed typical 197mVp
0
1
0
1
1
1
ETSI 300 233 for E1
ANSI T1.231 for T1
2048 (1 ms)
All channels in B8ZS/HDB3
All channels in AMI
CHn in AMI
CHn in B8ZS/HDB3
Line Code Rule
Signal on
LOSn
High
Low