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CHAPTER 15 UART
I UART pin block diagram
Figure 15.3-1 "UART pin block diagram" shows a block diagram of UART pins.
Data Bus
PDR read
PDR
DDR
ODCR
PCR
310
Figure 15.3-1 UART pin block diagram
0
1
0
Resource
1
output
Resource
output enabled
Resource input
PDR : Port Data Register
DDR : Data Direction Register
ODCR: OpenDrain Control Register
PCR : Pull-up Control Register
pin
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