pxf4333 Infineon Technologies Corporation, pxf4333 Datasheet - Page 177

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

•
Table 7-3
Cell
Pointer
SSRAM
e.g.
512 k x
32 bit
e.g.
256 k x
32 bit
e.g.
128 k x
32 bit
e.g.
256 k x
32 bit
e.g.
128 k x
32 bit
e.g.
64 k x
32 bit
Note: The upstream cell storage RAM must always be connected.
Note: The size of the cell storage RAMs need not to be specified. Its minimum size is
Data Sheet
determined by the setting of UBufMax/DbufMax.
Min.
Required
Upstream
Cell
SDRAM
128 Mb
e.g.
2*(4Mb*16)
64 Mb
e.g.
1*(2Mb*32)
32 Mb
128 Mb
e.g.
2*(4Mb*16)
64 Mb
e.g.
1*(2Mb*32)
32 Mb
External RAM Sizes
Min.
Required
Downstream
Cell SDRAM
128 Mb
e.g.
2*(4Mb*16)
64 Mb
e.g.
1*(2Mb*32)
32 Mb
none
none
none
UBufMax Up-
3FFFF
1FFFF
0FFFF
3FFFF
1FFFF
0FFFF
177
H
H
H
H
H
H
stream
Buffer
256k cells 3FFFF
128k cells 1FFFF
64k cells
256k cells 00000
128k cells 00000
64k cells
DBufMax Down-
0FFFF
00000
Register Description
PXF 4333 V1.1
H
H
H
H
H
H
stream
Buffer
256k cells
128k cells
64k cells
0
0
0
2001-12-17
ABM-3G