RM0082
RS_Telecom IP
Doc ID 018672 Rev 1
807/844
[26:24]
Chn
Indicates how many channels are present. This further implies
how many valid bits of Ch[3:0] are used to indicate the channel
number in the action memory. It should be the same for all the
active channels.
Chn2
Chn1
Chn0
Valid Bits
of Ch (3:0)
Number of channels
0
0
0
-
-
0
0
1
-
Upto 1
0
1
0
0
Upto 2
0
1
1
3:0
Upto 16
1
0
0
1:0
Upto 4
1
0
1
3:0
Upto 16
1
1
0
3:0
Upto 16
1
1
1
2:0
Upto 8
[23:22]
Off
These bits informs about the offset in bytes, at which data has
to be stored.
They are used only for buffered channels.
For narrow band (8 bit), these bits are not relevant.
For wideband (16 bits), the value can be 0, 1, 2 or 3 (Off0 and
Off1 are used).
In other cases the value can be 0 or 1 (Only off0 is used).
[21:20]
Ns
These bits inform about the number of bytes to be stored in a
frame for buffered channels. The address will then be
generated by Off1-0. NS must be the same for all the
descriptions of bytes relative to a specific channel.So if a buffer
channel is associated to more than one TS, then value of NS
should be same for all associated TS.
Ns1
Ns0
Number of bytes per
frame
0
0
Reserved
0
1
1 bytes
1
0
2 bytes
1
1
4 bytes
[19:16]
Ch
Channel number for the considered timeslot. It can be from 0 to
15.
Table 727.
Action memory (continued)
Bits
Name
Comments