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S3C2416X RISC MICROPROCESSOR
UART
14-1
14
UART
1 OVERVIEW
The S3C2416 Universal Asynchronous Receiver and Transmitter (UART) provide four independent asynchronous
serial I/O (SIO) ports, each of which can operate in Interrupt-based or DMA-based mode. The UART can support
bit rates up to 3Mbps bps. Each UART channel contains two 64-byte FIFOs for receiver and transmitter.
The S3C2416 UART includes programmable baud rates, infrared (IR) transmit/receive, one or two stop bit
insertion, 5-bit, 6-bit, 7-bit or 8-bit data width and parity checking.
Each UART contains a baud-rate generator, transmitter, receiver and a control unit, as shown in Figure 14-1. The
baud-rate generator can be clocked by PCLK, EXTUARTCLK or divided EPLL clock. The transmitter and the
receiver contain 64-byte FIFOs and data shifters. Data is written to FIFO and then copied to the transmit shifter
before being transmitted. The data is then shifted out by the transmit data pin (TxDn). Meanwhile, received data is
shifted from the receive data pin (RxDn), and then copied to FIFO from the shifter.
1.1 FEATURES
•
RxD0, TxD0, RxD1, TxD1, RxD2, TxD2, RxD3 and TxD3 with DMA-based or interrupt-based operation
•
UART Ch 0, 1, 2 and 3 with IrDA 1.0 & 64-byte FIFO
•
UART Ch 0, 1 and 2 support Auto Flow Control with nRTS0, nCTS0, nRTS1, nCTS1, nRTS2 and nCTS2
signals
•
Supports high-speed operation up to 3Mbps (in case of using EXTUARTCLK, divided EPLL clock)
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...