MT92220 Zarlink Semiconductor, MT92220 Datasheet - Page 81
MT92220
Manufacturer Part Number
MT92220
Description
1023 Channel Voice Over IP/AAL2 Processor
Manufacturer
Zarlink Semiconductor
Datasheet
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Data Sheet
If an xxPCM channel is carried by this connection, then the format of the TX RTP connection structure will be the
following:
+1A
+1C
+2A
+1E
+10
+12
+14
+16
+18
+20
+22
+24
+26
+28
+C
+A
+E
+0
+2
+4
+6
+8
Figure 45 - xxPCM Channel Addition to TX RTP Connection Structure
b15
Buf Size
S amples per packet at 64 kbps
Samples per packet at 40 kbps
Samples per packet at 24 kbps
b14
I
b13
b12
V
Next Packet Assembled Starting With This Byte [13:0]
TX Silence Suppression Structure Base [20:5]
TX RTP Header Structure Pointer [20:5]
Second Word of Last RTP Packet Sent
b11
Fourth Word of Last RTP Packet Sent
Third Word of Last RTP Packet Sent
Sixth Word of Last RTP Packet Sent
First Word of Last RTP Packet Sent
Fifth Word of Last RTP Packet Sent
Transmitted Packet Count [15:0]
Transmitted Octet Count [31:16]
Bearer N-2 - Circular Buffer Base Address [20:9]
Bearer N-1 - Circular Buffer Base Address [20:9]
Transmitted Octet Count [15:0]
b10
Bearer 1 - Circular Buffer Base Address [20:9]
Bearer 2 - Circular Buffer Base Address [20:9]
Zarlink Semiconductor Inc.
Time Stamp Offset [31:16]
Time Stamp Offset [15:0]
Sequence Number [15:0]
b9
b8
b7
SI
Samples per packet at 32 kbps
Samples per packet at 16 kbps
b6
Extra Delay Frames [7:0]
Number of Channels [7:0]
b5
b4
b3
b2
b1
b0
MT92220
81
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