TXC-06412BROG Transwitch Corporation, TXC-06412BROG Datasheet - Page 140

• Manufacturer Part Number: TXC-06412BROG
• Manufacturer: Transwitch Corporation

Specifications of TXC-06412BROG

• Lead Free Status / Rohs Status: Compliant

PHAST-12P Device
DATA SHEET
TXC-06412B
PRELIMINARY TXC-06412B-MB, Ed. 2
June 2005
11.12.2 Ingress Direction
11.12.2.1 Shared Settings for all ATM streams
11.12.2.2 Per ATM Stream Settings
11.12.2.3 Per ATM Stream Counters
The sum of the number of cells received from Tx FIFO and the number of idle/unassigned/
user defined pattern cells inserted is equal to the total number of cells forwarded.
Translation of the 12 configurable 5-bit UTOPIA PHY addresses into ATM cell stream
addresses (0, 1, . . , 11) is done in the UTOPIA interface block.
When mapping into a certain SDH/SONET stream is disabled, software has to configure the
POH Generator to insert the UNEQUIPPED activation pattern in the corresponding path.
• Enable/disable one second performance monitoring mechanism (shared with ingress
• Number of words which needs to be available before it is allowed to start reading a new
• Enable/disable mapping (shared with ingress PPP)
• HEC calculation and insertion
• Idle/Unassigned/user defined pattern cell insertion
• Number of cells (0 . . . 2
• Number of Idle/unassigned/user defined pattern cells (0 . . . 2
• Number of corrupted cells (0 . . . 2
PPP)
cell from the Tx FIFO (shared with ingress PPP). For ATM cell handling it is mandatory to
set this value to 27
• Enable/disable HEC calculation and insertion for ATM layer cells
• Enable/disable HEC calculation and insertion for inserted idle/unassigned/user defined
• HEC offset (coset) pattern (0x00 . . . 0xFF)
• HEC corruption mask (0x00 . . . 0xFF): the HEC is EXORed with this mask
• UDF1 / HEC manipulation (none, HEC EXOR UDF1, HEC AND UDF1, HEC OR
• 5 bytes header value
• Payload mode:
-
High Order Pointer Tracking, Retiming and Pointer Generation
pattern cells. If disabled the HEC byte in the 5 bytes header value is used
UDF1)
• Fixed to configured payload value
• Incremented each cell
• Incremented each byte and start each cell with the configured payload value
• Incremented each byte and cross cell boundaries
24
-1) received from Tx FIFO (shared with ingress PPP)
8
-1) received from Tx FIFO (cells with HEC error)
24
-
-1) inserted
1 4 0 o f 2 26