ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 64

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

IBM3206K0424
IBM Processor for Network Resources
Transmit and Receive Packet Header Field Descriptions
Packet Header
Page 64 of 676
TxQueueLenH/M/L
dma_desc_addr
start_timestamp
end_timestamp
Field Name
VBA
This is the IBM3206K0424 virtual buffer address of the current receive buffer. This is an optional packet
header word.
These words provide the current transmit queue length. See RXAAL Transmit Queue Length Compression
Configuration on page 351 for more information on the format of these words. These are optional packet
header words.
A timestamp can be inserted in the packet header when the packet is started. The timestamp is sourced from
the RXQUE timestamp register. The location of this timestamp is important so it is not overwritten when the
packet is completed. For this reason, it should be the last word in the packet header. This is an optional
header word.
A timestamp can be inserted in the packet header when the packet is started. The timestamp is sourced from
the RXQUE timestamp register. This is an optional header word.
If the dma_on_xmit bit is set in the packet header, this field contains the address of the DMA descriptor that
will be queued when transmission is complete.
Field Description
(Page 3 of 3)
pnr25.chapt03.01
August 14, 2000
Preliminary