MT92220BG Zarlink Semiconductor, MT92220BG Datasheet - Page 87

• Manufacturer Part Number: MT92220BG
• Description: Description = 1023 Channel Voice Over IP/AAL2 Processor ;; Package Type = Epbga ;; No. Of Pins = 608
• Manufacturer: Zarlink Semiconductor

Data Sheet
If an xxPCM channel is carried over this connection, then the format of the TX AAL2 connection structure will be the
following:
+1C
+1A
+2A
+1E
+10
+12
+14
+16
+18
+20
+22
+24
+26
+28
+A
+C
+E
+0
+2
+4
+6
+8
Figure 48 - xxPCM Channel Addition to TX AAL2 Connection Structure
Seq # Interval [7:4]
Seq # Interval [3:0]
b15
FL
Buf Size
Samples per packet at 64 kbps
Samples per packet at 40 kbps
Samples per packet at 24 kbps
b14
I
64 kbps UUI [4:0]
24 kbps UUI [4:0]
b13
T[31]
b12
V
Next Packet Assembled Starting With This Byte [13:0]
Silence Suppression Structure Base [20:5]
b11
AAL2 TX VC Base Address [20:5]
Transmitted Packet Count [15:0]
Transmitted Octet Count [31:16]
Transmitted Octet Count [15:0]
Num Seq Bits
b10
Bearer 254 - Circular Buffer Base Address [20:9]
Bearer 255 - Circular Buffer Base Address [20:9]
Zarlink Semiconductor Inc.
Time Stamp Offset [31:16]
Bearer 1 - Circular Buffer Base Address [20:9]
Bearer 2 - Circular Buffer Base Address [20:9]
Time Stamp Offset [15:0]
Time Stamp Remainder Wrap Inc [11:0]
b9
40 kbps UUI [4:0]
16 kbps UUI [4:0]
Time Stamp Remainder [11:0]
b8
b7
CPS Timer [11:0]
Samples per packet at 32 kbps
Samples per packet at 16 kbps
b6
Extra Delay Frames [7:0]
Number of Bearers [7:0]
b5
AAL2 CID [7:0]
b4
32 kbps UUI [4:0]
SID UUI [4:0]
b3
b2
b1
b0
MT92220
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