ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 352

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

IBM3206K0424
IBM Processor for Network Resources
12.31: RXAAL Packet Header Configuration
Allows user to configure the contents of each optional packet header word, and specify how many optional
packet words are used.
This register configures the contents of each optional packet header word in the optional portion of the packet
header. There are four possible configurations, and the configuration used is selected with the packHeadSel
field in the receive LCD.
The first three words of the packet header are fixed, and up to seven additional words can be configured. The
low nibble of this register specifies how many optional packet header words are used, and the remaining
nibbles of the register configure each packet header word if used.
Note: The base receive and transmit packet headers must be compatible if internal cell or packet routing is
being used. The receive packet header becomes the transmit packet header in this scenario.
User 0 and user 1 values can be used to place non-standard values in the packet header. These values are
built by the nano-code, and are then placed in the packet header. In order to use these values, the nano-code
must be customized. Do this only under the advisement of IBM technical support.
Length
Type
Address
Power On Value
Restrictions
Cell/Packet Re-assembly (REASM)
Page 352 of 676
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31-28
27-24
23-20
19-16
15-12
Bit(s)
Configure packet header word 3
Configure packet header word 4
Configure packet header word 5
Configure packet header word 6
Configure packet header word 7
32 bits
Read/Write
Config 0
Config 1
Config 2
Config 3
X’00000000’
None
XXXX 1740
XXXX 1744
XXXX 1748
XXXX 174C
Description
9
8
7
6
5
4
pnr25.chapt05.01
August 14, 2000
3
Preliminary
2
1
0