MT90500 Mitel Semiconductor, MT90500 Datasheet - Page 69

• Manufacturer Part Number: MT90500
• Description: Multi-Channel ATM AAL1 SAR
• Manufacturer: Mitel Semiconductor

From
External
PHY
Determines which
VCs are
controlled by
which RX_SAR
Control Structures
• •
Main
UTOPIA
Interface
•
VC Look-up Table
Structures -
one for each
UTOPIA Module
RX_SAR
Control
VC
OAM and
including
UTOPIA
BLOCK,
VPI/VCI
Filtering
RX
Figure 30 - Overview of CBR Data Reception Process
Dictate
received data to
be sent to
specific RX
Circular Buffers
Selection Process
(see Figure 26 on
Receive Cell
Receive
Primary
32-cell
Queue
page 65)
channel being
Buffers - one
for each TDM
RX Circular
received
Internal
Frame
Buffer
TDM
•
Directs data
from Circular
Buffers to TDM
channels
•
•
TDM Module
TDM Clock
Recovery
TDM Bus
Interface
Clock
Logic
Logic
MT90500
Memory to
External
Synchronous
SRAM
Structure
External
Memory
Internal
Control
MT90500
Local TDM Bus
32 x 64 kbps in /
32 x 64 kbps
out
TDM Bus
16 lines
1024 x 64kbps
(max.)
Clock
Signals
69