MT90812 Mitel Networks Corporation, MT90812 Datasheet - Page 2
MT90812
Manufacturer Part Number
MT90812
Description
Integrated Digital Switch (IDX)
Manufacturer
Mitel Networks Corporation
Datasheet
1.MT90812.pdf
(105 pages)
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MT90812
2
CPU
EST1
STi0
STi1
M
U
X
C.O.
Trunks
FSK and Tone
Conference
Generation
Converter
D-channel
Microprocessor
Parallel
TX/RX
Serial
Interface
to
MPU Interface
- D-channel
- Chip control
2B+D
2B+D
2B+D
Figure 2 - System Blocks - Typical Configuration
CODEC
Figure 1 - Functional Block Diagram
Memory
Data
TDM Bus
Local
Frame Pulses and Clocks
Integrated
Digital Switch
- digital switch
- conferencing
- tone generation
- energy detection
Timing
Control
&
Connect Memory
Control
Energy Detect
System Expansion bus (TDM)
Gain
Output
2B+D
Mux
2B+D
2B+D
2B+D
2B+D
2B+D
PLL
. . .
2B+D
CODEC
2B+D
Frequency
Resource
Allocator
Converter
Advance Information
Parallel
HDLC
Serial
Ring
to
Analog
Ports
2B+D
Ports
2B+D
Ports
STo0
STo1
EST0
R+
R-
Controller
HDLC
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