UM_S3C2501X Datasheet, PDF (406/465 Pages) Samsung semiconductor – 32-BIT RISC MICROPROCESSOR

S3C2501X
31
SERIAL I/O (HIGH-SPEED UART)
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
T T T T ECDAE I RRRRDCOPFBR
F FH I _ TSU_DF F F FCCEEEKD
F EE CSRBRLOF ERDDRRRDV
UM
T
DX E VUME L
LT
S
DT
L TA
NO
[12] Receive Event Time out (E_RxTO)
0 = A promised time is not elapsed during receiving.
1 = Valid data in a promised time
NOTE: A promised time is determined according to
WL (Word Length): Promised time = 4*WL + 12)
[13] Auto Baud Rate Detection Done (AUBDDN)
0 = Before AutoBaud Rate Detection
1 = After AutoBaud Rate Detection
[14] Data Set Ready (DSR)
0 = DSR pin goes High
1 = DSR pin goes Low
[15] Clear To Send (CTS)
0 = CTS pin goes High
1 = CTS pin goes Low
[16] CTS event occured (E_CTS)
0 = CTS pin has changed.
1 = CTS pin keep it's level
[17] Transmitter Idle (TI)
0 = Transmit is in progress.
1 = Transmitter is in idle; no data for Tx
[18] Transmit Holding Register Empty (THE)
0 = TxFIFO at trigger level or tranmit holding register is not empty.
1 = In TxFIFO mode, TxFIFO at trigger level is empty.
In non-FIFO mode, transmit holding register is empty.
[19] Transmit FIFO Empty (TFEMT)
0 = Transmit FIFO is not empty
1 = Transmit FIFO is empty
[20] Transmit FIFO full (TFFUL)
0 = Transmit FIFO is not full
1 = Transmit FIFO is full
[31:21] Reserved
Figure 11-3. High-Speed UART Status Register (Continued)
11-13