PM73121ꢀAAL1gator II
Data Sheet
PMC-Sierra, Inc.
PMC-980620
,VVXHꢀꢁ
AAL1 SAR Processor
Figure 35 shows the contents of the receive data buffer for ESF-formatted T1 data for lines in the
SDF-MF mode. Only the first 24 bytes of each frame buffer and the first 24 frame buffers of every
32 are used. This provides storage for 384 frames or 16 multiframes of T1 data.
DS0
23 31
0
Frame Buffer Number
0
23
MF0
MF1
32
256
MF15
511
Figure 35. T1 ESF SDF-MF Format of the R_DATA_BUFFER
Figure 36 shows the contents of the receive data buffer for SF-formatted T1 data for lines in the
SDF-MF mode. Only the first 24 bytes of each frame buffer and the first 24 frame buffers of every
32 are used. This provides storage for 384 frames of T1 data.
DS0
Frame Buffer Number
0
23
0
31
MF 0
MF 1
12
24
32
MF 2
MF 3
MF 4
MF 5
•
•
•
480
511
MF 30
MF 31
Figure 36. T1 SF SDF-MF Format of R_DATA_BUFFER
ꢄꢃ
PMC [ PMC-SIERRA, INC ]
