pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 130

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

3.6.10.2 Emit FIFO Organization (IOP/FW View)
This FIFO stores Emit and time-out events from both cores. Each event is stored in 3
successive 16-bit words. The mapping of the parameters in the 3 words depends on the
event type:
Table 3-61
w\b 15
0
1
2
Core
QID(10:0)
Tnow(19:0)
Qlen
Table 3-62
w\b 15
0
1
2
Core
QID(10:0)
ToT
ToA
Table 3-63
w\b 15
0
1
2
Data Sheet
ToT ToA
ToF ToB
0
0
0
0
0
Tnow(19:16)
14
14
14
0
0
0
0
0
Emit FIFO Entry for Emit Events
Emit FIFO Entry for Time-out Events in VS/VD Mode
Emit FIFO Entry for Time-out Events in ER Mode
13
13
13
0
0
0
0
0
0
2k-1 QID (range 1 to 2047), only 1k-1 (even numbers) used for ABR;
QID 0 is reserved for CRT bypass
Cell emit time for rate calculation in ER algorithm. Tnow counts cell
cycles. The granularity Tnow is defined by the global parameter
TstepC, located in
and calculated as follows:
Granularity of Tnow = 2 ** TstepC
Queue length from Buffer Manager for ER algorithm
2k-1 QID (range 1 to 2047), only 1k-1 (even numbers) used for ABR;
QID 0 is reserved for CRT bypass
1 if time-out event Trm (set by SCAN)
1 if time-out event ADTF (set by SCAN)
Indicates upstream(0) or downstream (1) emit event
Indicates upstream(0) or downstream (1) rate control
12
12
12
0
0
0
0
0
0
11
Core
11
Core
11
Core
0
0
0
0
10
10
10
0
0
0
0
9
9
9
0
0
0
0
Register 70 "USCONF/DSCONF" on Page 295
Tnow(15:0)
8
8
8
130
0
0
0
0
Qlen(13:0)
7
7
7
0
0
0
0
6
6
6
0
0
0
0
QID(10:0)
QID(10:0)
QID(10:0)
5
5
5
0
0
0
0
4
4
4
Functional Description
0
0
0
0
3
3
3
0
0
0
0
PXF 4336 V1.1
2
2
2
0
0
0
0
2001-12-17
1
1
1
0
0
0
0
ABM-P
0
0
0
0
0
0
0