pxf4333 Infineon Technologies Corporation, pxf4333 Datasheet - Page 55

• Manufacturer Part Number: pxf4333
• Description: Abm 3g Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

Figure 3-9
Note: Initialization of external and internal RAM must be started by software via
3.3
The ABM-3G has two operational modes: Bi-directional mode and Uni-directional mode.
The directional terminology for the modes refers to the usage of the ABM-3G cores, not
to the connections. The connections are bi-directional in all cases. In Bi-directional
mode, one ABM-3G core is used exclusively for the cells of a connection in the upstream
direction and the other core exclusively handles cells of the same connection in the
downstream direction. In Uni-directional mode, only one core always will be used to
handle the cells of a connection both in up- and downstream direction. The two basic
Data Sheet
command bits ‘INITRAM’ and ‘INITSDRAM’ in register
following the device reset.
System Integration
Reset System Overview
Test/
Clocks
BSCAN
AAL5
SSRAM
uP IF
IF
ARC
SWRES
bit 15
Cell Handler downstream
55
Cell Handler upstream
SDRAM Interface (dn)
SDRAM Interface (up)
Manager
Buffer
(BM)
Register ‘MODE 1’
Scheduler
Functional Description
“MODE1” on Page 312
Queue
(QS)
ARC
PXF 4333 V1.1
2001-12-17
ABM-3G