AN2832 Freescale Semiconductor / Motorola, AN2832 Datasheet - Page 5

• Manufacturer Part Number: AN2832
• Description: Packet Telephony Remote Diagnostics on the StarCore SC140 Core
• Manufacturer: Freescale Semiconductor / Motorola

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Figure 4 shows a top-level view of the remote diagnostic device, with respect to the hybrid circuit and network
echo canceller (ECAN). The device monitors the r
measurements requested from the communication network.
Freescale Semiconductor
w(n)
x(n)
r
Remote Diagnostic Architecture
Legend
s
x(n)
y(n)
o
To/From
Communication
Network
o
(n)
(n)
Far-end receive signal from the ECAN.
Sending signal from the ECAN.
Training signal (
Receive signal from the hybrid (
Figure 4. Top-Level Architecture of the Proposed Remote Diagnostic Device
+
Hybrid
Circuit
Packet Telephony Remote Diagnostics on the StarCore SC140 Core, Rev. 1
+
(h)
r(n) + r
y(n)
o
(n)
r(n)
Remote Diagnostic
Device
).
w(n) + h ∗ x(n)
Control Unit
Monitoring
Channel
+
o
(n), y(n), and s
+
+
+
z(n)
).
o
(n) signals for performing various
r
s
o
(n)
i
(n)
Echo Canceller
Remote Diagnostic Architecture
Network
(ECAN)
s
r
o
i
(n)
(n)
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