TXC-04252AIPQ Transwitch Corporation, TXC-04252AIPQ Datasheet - Page 126

• Manufacturer Part Number: TXC-04252AIPQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-04252AIPQ

• Pin Count: 160
• Screening Level: Industrial
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Ed. 3, December 2000
QE1M
TXC-04252
TXC-04252-MB
0CB Port 4
0CC Port 4
0CD Port 4
0CE Port 4
03B Port 1
06B Port 2
09B Port 3
03C Port 1
06C Port 2
09C Port 3
03D Port 1
06D Port 2
09D Port 3
0CF Port 4
0BE Port 3
0EE Port 4
03E Port 1
06E Port 2
09E Port 3
03F Port 1
06F Port 2
09F Port 3
05E Port 1
08E Port 2
Address
(cont.)
7-4
3-0
7-0
7-0
7-3
2-0
7-6
5-4
3-2
1-0
Bit
Proprietary TranSwitch Corporation Information for use Solely by its Customers.
1
0
Bn Alarms
Bn Alarms
BnUNEQ
BnSLER
BnFEBE
Symbol
Counter
Counter
Counter
Counter
Unused
Latched
Unused
Latched
Unused
BnBIP2
Bn RX
BnPJ
BnNJ
Label
B Drop Bus Port n Unequipped Indication: A 1 indicates that an
Unequipped status has been detected in the V5 signal label (Bits 5-7 in
V5 byte = 0) for the TU/VT selected in the B side drop bus. An
unequipped signal label is equal to 000. Five or more consecutive
received unequipped signal labels will cause this alarm. Recovery
occurs when five or more consecutive signal labels are received not
equal to 000.
B Drop Bus Port n Signal Label Mismatch Indication: A 1 indicates
that the receive signal label (Bits 5-7 in V5 byte) does not match the
microprocessor-written signal label in the TU/VT selected for the B side
drop bus. Five or more consecutive signal label mismatches (against the
microprocessor-written value), or received labels not equal to 001,
results in an alarm. Recovery occurs upon receipt of five or more con-
secutive correct signal labels, or 001 values.
B Drop Bus Port n Positive Pointer Justification Counter: A four-bit
counter that increments on a positive pointer movement for the TU/VT
selected. The counter saturates at full count and is cleared when it is
read.
B Drop Bus Port n Negative Pointer Justification Counter: A four-bit
counter that increments on a negative pointer movement for the TU/VT
selected. The counter saturates at full count and is cleared when it is
read.
B Drop Bus Port n BIP-2 Counter: An 8-bit counter which counts the
number of BIP-2 errors detected for the TU/VT selected. A maximum of
two errors can occur each frame. These two errors cause a single count
if the BLOCK control bit is set to 1. The counter saturates at full count
and is cleared when it is read.
B Drop Bus Port n FEBE Counter: An 8-bit counter which counts the
number of FEBE errors received (Bit 3 in V5 byte = 1) for the TU/VT
selected. The counter saturates at full count and is cleared when it is
read.
Unused: These bits read out as indeterminate.
B Drop Bus Port n Received Signal Label: These three bit positions
correspond to the three signal label bits located in bits 5 through 7 of the
V5 byte for the TU/VT selected. This location is updated every 500
microseconds. Bit 2 corresponds to bit 7 in the V5 byte. These bits are
also compared against the microprocessor-written mismatch signal label
bits for an unequipped and mismatch indication. Code 1 (001) has been
implemented in hardware and does not have to be written into this loca-
tion.
Same alarms as the corresponding address 05F, 08F, 0BF, 0EF bit posi-
tions except that these alarms are latched.
Unused: These bits read out as zero.
Same alarms as the corresponding address 05F, 08F, 0BF, 0EF bit posi-
tions except that these alarms are latched.
Unused: These bits read out as zero.
DATA SHEET
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