TXC-04222-AIOG Transwitch Corporation, TXC-04222-AIOG Datasheet - Page 170

• Manufacturer Part Number: TXC-04222-AIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-04222-AIOG

• Screening Level: Industrial
• Package Type: BGA
• Lead Free Status / Rohs Status: Not Compliant

June 2003
TEMx28
TXC-04222
TXC-04222-MB, Ed. 6
B SIDE DROP BUS - STATUS REGISTER DESCRIPTIONS
Address
080
7-5
Bit
4
3
2
1
0
Proprietary TranSwitch Corporation Information for use Solely by its Customers
Symbol
B3UAIS
B2UAIS
B1UAIS
BDLOC
BDPAR
Not used:
B Side Drop Bus Upstream AIS (Unlatched) Alarm Indication -
STS-3 STS-1 No. 3/AU-3 C: A 1 indicates that AIS has been detected
on the B side drop bus in the H1/H2 bytes or in the E13 byte for the
STS-3 STS-1 No.3/STM-1 AU-3 C format. Control bits SE1AIS and
HEAISE (bits 1 and 0, 01DH) determine whether the H1/H2 bytes or the
E13 byte is monitored for AIS detection. This indication is disabled for
the STM-1 VC-4 format.
B Side Drop Bus Upstream AIS (Unlatched) Alarm Indication -
STS-3 STS-1 No. 2/AU-3 B: A 1 indicates that AIS has been detected
on the B side drop bus in the H1/H2 bytes or in the E12 byte for the
STS-3 STS-1 No.2/STM-1 AU-3 B format. Control bits SE1AIS and
HEAISE (bits 1 and 0, 01DH) determine whether the H1/H2 bytes or the
E12 byte is monitored for AIS detection. This indication is disabled for
the STM-1 VC-4 format.
B Side Drop Bus Upstream AIS (Unlatched) Alarm Indication -
STS-3 STS-1 No. 1/AU-3 A, STM-1 VC4: A 1 indicates that AIS has
been detected on the B side drop bus in the H1/H2 bytes or in the E11
byte for the STS-3 STS-1 No.1/STM-1 AU-3 A format or for the STM-1
VC-4 format. Control bits SE1AIS and HEAISE (bits 1 and 0, 01DH)
determine whether the H1/H2 bytes or the E11 byte is monitored for AIS
detection.
B Side Drop Bus Parity (Unlatched) Alarm Indication: A 1 indicates
that an even or odd parity error has been detected in the B side Drop bus
signals. Other than an alarm indication, no action is taken. Parity is mon-
itored for each drop bus clock cycle.
B Side Drop Bus Loss Of Clock (Unlatched) Alarm Indication: A 1
indicates that the B side Drop bus has detected a loss of clock. An alarm
occurs when the input drop clock is stuck high or low for 56 clock cycles
(DSCLK clock). Recovery occurs on the first clock transition.
DATA SHEET
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Description