PXF4336 Datasheet, PDF (374/425 Pages) Infineon Technologies AG – ABM Premium ATM Buf fer Manager

VCMerge
INITRAM
INITSDRAM
ABM-P
PXF 4336 V1.1
Register Description
10
64k pointer entries per direction
(corresponds to 64k cells in each cell storage RAM)
11
reserved
Note: The Cell Pointer RAM Size should be programmed during
initialization and should not be changed during operation.
VC Merge Enable
This bit enables VC-Merge operation on a global basis. It
determines the usage (required width) of the Cell Pointer RAM,
since VC-Merge operation requires one additional flag ‘EOP Mark’
in the CPR.
(see also Table 5-10 "SSRAM Configuration Examples" on
Page 174)
0
VC-Merge operation disabled.
1
VC-Merge operation enabled.
Init RAM
Start of Initialization of the internal RAM.
This bit is automatically cleared after execution.
1
Starts internal RAM initialization procedure.
Note: The internal RAM initialization process can be
activated only once after hardware reset.
(0)
self-clearing
Init SDRAM
Initialization and configuration of the external SDRAM. This bit must
be set to 1 after reset (initial pause of at least 200 µs is necessary)
and is automatically cleared by the ABM-P after configuration of the
SDRAM has been executed.
1
Starts SDRAM initialization procedure
(0)
self-clearing
Data Sheet
374
2001-12-17