Motorola MPC8260 User Manual
29-71
MPC8260 PowerQUICC II UserÕs Manual
MOTOROLA
Part IV. Communications Processor Module
29.10.5.5 AAL1 RxBD
Figure 29-47 shows the AAL1 RxBD.
0x02
Ñ
DL
Data length. The number of octets written by the CP into this BDÕs buffer. It is written by the
CP once the BD is closed. In the last BD of a frame, DL contains the total frame length.
CP once the BD is closed. In the last BD of a frame, DL contains the total frame length.
0x04
RXDBPTR Rx data buffer pointer. Points to the Þrst location of the associated buffer; may reside in
internal or external memory. This pointer must be burst-aligned.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Offset + 0x00
E
Ñ
W
I
SNE
Ñ
CM
Ñ
Offset + 0x02
Data Length
Offset + 0x04
Rx Data Buffer Pointer
Offset + 0x06
Figure 29-47. AAL1 RxBD
Table 29-35. AAL5 RxBD Field Descriptions (Continued)
Offset Bits
Name
Description