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PRELIMINARY
S3C6400 RISC MICROPROCESSOR
UART
31-7
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
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'E'
'D'
'C'
'B'
'A'
Rx FIFO
URXHn
UERSTATn
break error
parity error
frame error
Error Status Generator Unit
Error Status FIFO
Figure 31-3 Example showing UART Receiving 5 Characters with 2 Errors
INFRA-RED (IR) MODE
The S3C6400 UART block supports infra-red (IR) transmission and reception, which can be selected by setting
the Infra-red-mode bit in the UART line control register (ULCONn). Figure 31-4 illustrates how to implement the
IR mode.
Time Sequence Flow
Error Interrupt
Note
#0
When no character is read out
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#1
A, B, C, D, and E is received
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#2
After A is read out
The frame error (in B) interrupt occurs.
The 'B' has to be read out.
#3
After B is read out
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#4
After C is read out
The parity error (in D) interrupt occurs.
The 'D' has to be read out.
#5
After D is read out
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#6
After E is read out
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