UM_S3C2501X Datasheet, PDF (421/465 Pages) Samsung semiconductor – 32-BIT RISC MICROPROCESSOR

SERIAL I/O (HIGH-SPEED UART)
S3C2501X
TMODE
TX DATA
uart_tx_req
uart_tx_ack
<TRANSMITTER>
Select DMA Mode
Start
Data Bits (5-8)
Parity
Stop
(1-2)
Figure 11-20. DMA-Based Serial I/O Timing Diagram (Tx Only)
RMODE
RX DATA
HU_RXBUF
uart_rx_req
uart_rx_ack
< RECEIVER >
Select DMA Mode
Start
Data Bits (5-8)
Previous Receive Data
Parity
Stop
(1-2)
Start
Data Bits
Valid Receive Data
Figure 11-21. DMA-Based Serial I/O Timing Diagram (Rx Only)
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