MT92220 Zarlink Semiconductor, MT92220 Datasheet - Page 72

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

72
CPS Timer
Assembly Structure Base
Address
HDLC Packet Base
Address
HDLC Stream Number
Assembly Structure Base
Address
HDLC Packet Base
Address
TI
TDM Write Pointer
Buf Size
HDLC Packet Length
Time Stamp
Field
Field
+A
+C
+E
+0
+2
+4
+6
+8
b 15
0
1
b14
FL
0
Figure 39 - Assembly Event Send HDLC AAL2 Packet
CPS Timer to be applied to this packet when it is pending transmission due to an
incomplete cell. Units are in frames.
Base address of the Tx AAL2 Connection Structure to which this event is being
sent. The base address is pointed to in increments of 64 bytes.
Pointer to the first byte of the HDLC packet in external memory. This pointer points
to 32 byte increments in SSRAM A.
Number of the HDLC Stream structure in the TX TDM Control Memory that
generated this event structure.
Base address of the Tx RTP Connection Structure to which this event is being
sent. The base address is pointed to in increments of 64 bytes.
Pointer to the first byte of the HDLC packet in external memory. This pointer
points to 32-byte increments in SSRAM A.
Time stamp Insert. When ‘0’, the time stamp will be inserted in the packet as it
is received in the HDLC packet. When ‘1’, the time stamp in the HDLC packet
will be treated as an offset from the current bus time-stamp.
TDM Write Pointer used to write xxPCM samples in the TX Circular Buffers at
the time of the generation of this event.
Size of the HDLC circular buffer in which the HDLC packet is contained.
Length of the payload of the HDLC packet in bytes.
Local Bus Time Stamp during which the HDLC packet completed.
b13
0
Buf Size
b12
Assembly Structure Base Address [20:6]
1
Table 27 - Fields and Description
Table 28 - Fields and Description
b11
HDLC Packet Base Address [20:5]
b10
Zarlink Semiconductor Inc.
b9
TDM Write Pointer [13:0]
b8
HDLC Packet Length [10:0]
b7
CPS Timer [11:0]
HDLC Stream Number [8:0]
b6
Description
Description
b5
b4
b3
b2
b1
b0