xr68c681 Exar Corporation, xr68c681 Datasheet - Page 51
xr68c681
Manufacturer Part Number
xr68c681
Description
Cmos Dual Channel Uart Duart
Manufacturer
Exar Corporation
Datasheet
1.XR68C681.pdf
(75 pages)
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Remote Loopback Mode
MR2n[5] - Transmitter Request-to-Send Control
Figure 22. A Block Diagram Depicting “Remote Loopback Mode” Operation
Note: The CPU has no access to the Serial Data during Remote Loopback Mode.
Figure 22
Figure 26
MR2n[4] - Clear to Send Control
XR68C681
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