pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 154

• Manufacturer Part Number: pxf4336
• Description: Abm Premium Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

After generating this message, the firmware is fully operative and in its “idle loop”. The
external microprocessor may:
• Configure global parameters for ABR connections
• Set up connections,
• Modify/monitor connection parameters,
• Teardown connections.
4.2.9.1
For ABR ER and ABR VS/VD operation, some global parameters need to be defined in
the Cache RAM of the IOP. These parameters can be read and written via the ERC
mailbox registers (see
CacheVarWrite and CacheVarRead. Refer to
detailed information on ABR parameters.
The parameters Trm, TstepUp, and TstepDn can automatically be copied from the
ABM-P registers by the firmware using the InitIOP command. This operation should
always be performed after setting the corresponding ABM-P registers and the firmware
parameters.
Table 4-10
Name
Version
Trm
Mrm
Nrm
CDF
QLmax
QLdelta
SysClkLo
SysClkHi
TstepUp
Data Sheet
Firmware Parameter Configuration
Addr Default Comment
02
03
04
05
07
0A
0B
0C
0D
12
Firmware Parameters
H
H
H
H
H
H
H
H
H
0012
000A
0002
0020
0004
3F00
0200
8700
0393
0004
H
H
H
H
H
H
H
H
H
H
“ERC Mailbox” on Page
Major (bits 7:4) and minor (bits 3:0) firmware version
Upper time bound for FRM cells, automatically copied
from register
ms)
Mrm (2 cells fixed)
Number of user cells per FRM cell (default 32)
Cutoff Decrease Factor, given in CDF=1/(2 exp n)
Maximum Queue Length (0..16383 cells). ABR VS/VD
only: If Qlength exceeds QLmax CI and NI are set in RM
cells, if Qlength falls below QLmax CI is reset.
Queue Length Delta (0..QLmax). ABR VS/VD only: If
Qlength falls below QLmax-Qconst NI is reset in RM cells.
ABM-P core clock low word (default 60 MHz)
ABM-P core clock high word (default 60 MHz)
Time Base for Rate Shaper upstream, automatically
copied from register
154
ERCCONF1
“ABR Parameters” on Page 99
USCONF/DSCONF
by firmware (default 10 for 100
113) using the commands
Operational Description
by firmware.
PXF 4336 V1.1
2001-12-17
ABM-P
for