MT92220 Zarlink Semiconductor, MT92220 Datasheet - Page 107

• Manufacturer Part Number: MT92220
• Description: 1023 Channel Voice Over IP/AAL2 Processor
• Manufacturer: Zarlink Semiconductor

Data Sheet
Generic UUI/LI
Table Base
Received Packet
Count
Received Octet
Count
R
Type
xxPCM Info
RX AAL2 Channel
Structure Address
Field
This field is a pointer to a Generic UUI/LI Table Structure to be used to determine which
index in the 16 way split to a RX Channel Structure will be taken. This pointer is defined
in increments of 1024 bytes.
This field counts the total number of packets received on this connection so far.
This field is a counter of the total number of octet received on this connection so far. For
each AAL2 CPS packet received, this field will increment by LI+1.
Report UUI/LI Combination to CPU through the RX Disassembly Event Report Queue
(when set).
Type of RX Channel Structure.
“000” = PCM + ADPCM;
“001” = HDLC;
“010” = RX CPU;
“111” = delete;
others = reserved.
It is used to distinguish PCM and ADPCM encoding as well as CN packet.
“0000” = PCM 64 kbps (no law change);
“0001” = ADPCM 40 kbps;
“0010” = ADPCM 32 kbps;
“0011” = ADPCM 24 kbps;
“0100” = ADPCM 16; kbps;
“0101” = SID Packet (one byte, white, internal);
“1000” = PCM 64 kbps (u-law -> A-law);
“1001” = PCM 64 kbps (A-law -> u-law);
“1010” = PCM 64 kbps (A-law -> u-law (except 00h));
“1011” = PCM 64 kbps (u-law -> u-law (except 00h));
“1100” = SID Packet (one/multi byte, white/pink, external);
others = reserved.
This field is a pointer to an RX AAL2 Channel Structure t to be used to complete the
CPS Packet processing, sending it either to the TDM bus in PCM or HDLC format or to
an RX CPU Packet queue. This address points to increments of 32 bytes.
This field contains additional information about PCM and ADPCM connection packets.
Table 42 - Fields and Description
Zarlink Semiconductor Inc.
Description
MT92220
107