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MSC Applications
The MSC is a serial interface that is especially designed to connect external power
devices to the TC1728. The serial data transmission capability minimizes the number of
pins required to connect such external power devices. Parallel data information (coming
from the timer units) or command information is sent out to the power device via a high-
speed synchronous serial data stream (downstream channel). The MSC receives data
and status back from the power device via a low-speed asynchronous serial data stream
(upstream channel).
Figure 19-1
shows a typical TC1728 application in which an MSC interface controls two
power devices. Output data is provided by the GPTA module.
GPTA
Module
Figure 19-1 MSC to External Power Device Connection
Some applications are:
•
Control of the external power switching unit via the downstream channel
•
Receiving information back from power switching unit
•
Serial connections of the TC1728 to other peripheral devices
User's Manual
MSC, V1.37 2009-05
16
Data
MSC
16
19-2
Micro Second Channel (MSC)
Data
Clock
Power
Select
Device
Select
Power
Data
Device
MCA06228_mod
TC1728
1
2
V1.0, 2011-12
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