Uart Fifo Status Register - Samsung S3C2416 User Manual

S3C2416X RISC MICROPROCESSOR

3.7 UART FIFO STATUS REGISTER

There are four UART FIFO status registers including UFSTAT0, UFSTAT1 UFSTAT2 and UFSTAT3 in the UART
block.
Register
UFSTAT0 0x50000018
UFSTAT1 0x50004018
UFSTAT2 0x50008018
UFSTAT3 0x5000C018
UFSTATn
Reserved
Tx FIFO Full
Tx FIFO Count [13:8]
Reserved
Rx FIFO Full
Rx FIFO Count [5:0]
Address R/W
R UART channel 0 FIFO status register
R UART channel 1 FIFO status register
R UART channel 2 FIFO status register
R UART channel 3 FIFO status register
Bit
[15] −
[14] Set to 1 automatically whenever transmit FIFO is full during
transmit operation
0 = 0-byte ≤ Tx FIFO data ≤ 63-byte
1 = Full
Number of data in Tx FIFO
[7]
−
[6] Set to 1 automatically whenever receive FIFO is full during
receive operation
0 = 0-byte ≤ Rx FIFO data ≤ 63-byte
1 = Full
Number of data in Rx FIFO
Description
Description
UART
Reset Value
0x00
0x00
0x00
0x00
Initial State
0
0
0
0
0
0
14-19