ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 310

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

IBM3206K0424
IBM Processor for Network Resources
11.5: SEGBF Software LCD Complete
This register provides feedback to the program when the segmentation logic completes cell generation for an
LCD that was enqueued by the software. After the segmentation logic has updated the LCD, the address of
the LCD is copied into this register providing any previous LCD addresses written to this register have been
read by the software. If multiple software queued LCDs are outstanding to the segmentation logic at any time,
the segmentation process can be delayed when multiple software enqueued LCDs complete without the
software getting a chance to read the LCD addresses from this register. To guarantee that the segmentation
logic never has to wait for the software to read this register, it is recommended that only one software LCD be
enqueued at any one time.
Length
Type
Address
Power On Value
Restrictions
ATM Transmit Buffer Segmentation (SEGBF)
Page 310 of 676
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
Bit(s)
31-7
6-5
4-1
0
These bits contain the upper 25 bits of the LCD address that the segmentation logic has finished processing.
These bits indicate the drop on which the cell was sent.
These bits will read back as ’0’.
This bit will be set when the cell that was built was the last cell of a frame and reset if the cell that was built was not the
last cell of a frame.
32 bits
Read/Write
XXXX 141C
X’00000000’
Bits 5 through 0 are not implemented and will always return ’0’. To maintain future
compatibility, ’0’s should be written to these bits.
Upper 25 Bits of LCD Address
Description
9
8
7
6
Drop
5
4
Read as 0
pnr25.chapt05.01
August 14, 2000
3
Preliminary
2
1
0