Samsung S3C2451X User Manual page 357

S3C2451 RISC MICROPROCESSOR
UART SPECIAL REGISTERS
UART LINE CONTROL REGISTER
There are four UART line control registers including ULCON0, ULCON1, ULCON2 and ULCON3 in the UART
block.
Register
ULCON0 0x50000000
ULCON1 0x50004000
ULCON2 0x50008000
ULCON3 0x5000C000
ULCONn
Reserved
Infrared Mode
Parity Mode [5:3]
Number of Stop
Bit
Word Length [1:0]
Address R/W
R/W UART channel 0 line control register
R/W UART channel 1 line control register
R/W UART channel 2 line control register
R/W UART channel 3 line control register
Bit
[7] –
[6] Determine whether or not to use the Infrared mode.
0 = Normal mode operation
1 = Infrared Tx/Rx mode
Specify the type of parity generation and checking during UART
transmit and receive operation.
0xx = No parity
100 = Odd parity
101 = Even parity
110 = Parity forced/checked as 1
111 = Parity forced/checked as 0
[2] Specify how many stop bits are to be used for end-of-frame
signal.
0 = One stop bit per frame
1 = Two stop bit per frame
Indicate the number of data bits to be transmitted or received per
frame.
00 = 5-bits
10 = 7-bits
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.
Description
Description
01 = 6-bits
11 = 8-bits
UART
Reset Value
0x00
0x00
0x00
0x00
Initial State
0
0
000
0
00
15-9