RELEASED
PM73123 AAL1GATOR-8
DATASHEET
PMC-2000097
ISSUE 2
8 LINK CES/DBCES AAL1 SAR
Field (Bits)
Description
T_CELL_CNT
(15:0)
A 16-bit count of the data cells transmitted. Rolls to
0 from FFFFh. Initialize to 0. After initialization, do
not write to this word.
TX_HEAD(1:2) Word Format (08H)
This word is maintained by the microprocessor. . Note: in UDF-HS mode, TALP
reads this word only once, before it generates the first cell of the connection; as
a result, any writes to this word after TALP generates the first cell will have no
affect. TALP simply reads the TX_HEAD locations, then writes them into the
UTOPIA FIFO during cell construction.
Field (Bits)
Description
TX_HEAD(1)
(15:8)
First header byte in bits 15:8. Initialize to the proper
value.
TX_HEAD(2)
(7:0)
Second header byte in bits 7:0. Initialize to the
proper value.
TX_HEAD(3:4) Word Format (09H)
This word is maintained by the microprocessor. . Note: in UDF-HS mode, TALP
reads this word only once, before it generates the first cell of the connection; as
a result, any writes to this word after TALP generates the first cell will have no
affect.
Field (Bits)
Description
TX_HEAD(3)
(15:8)
Third header byte in bits 15:8. Initialize to the proper
value.
TX_HEAD(4)
(7:0)
Fourth header byte in bits 7:0. Initialize to the
proper value.
TX_HEAD(5) Word Format (0AH)
This word is maintained by the microprocessor. . Note: in UDF-HS mode, TALP
reads this word only once, before it generates the first cell of the connection; as
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