Samsung S3C6400X User Manual page 1125

IRDA
IRDA PREAMBLE LENGTH REGISTER(IRDA_PLR)
Register Address
IrDA _PLR 0x7F00_701C
REG_PLR
Preamble length
in FIR mode
TX FIFO trigger level
select
Number of start flags in
MIR mode
IRDA RECEIVER & TRANSMITTER BUFFER REGISTER(IRDA_RBR)
Register Address
IrDA_RBR 0x7F00_7020
IrDA_THR
IrDA _RBR
Rx/Tx data
IRDA TOTAL NUMBER OF DATA BYTES REMAINED IN TX FIFO(IRDA_TXNO)
Register Address
0x7F00_7024
IrDA
_TXNO
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
38-18
Specifications and information herein are subject to change without notice.
R/W
R/W IrDA Preamble Length Register
Bit
[7:6] These two bits decide preamble length to be transmitted
at the beginning of each frame in FIR mode. The default
value of PLR[7:6] = '00' which is equal to 16 preambles.
[5:4] Transceiver FIFO trigger level selection.
Bit 5
Note: Tx Trigger level value means total number data empty.
[3:0] Number of start flags in MIR mode. The number of start
flags to be transmitted at the beginning of a frame is equal
to the IrDA_PLR [3:0] value. The minimum value is 3.
R/W
R/W IrDA Receiver & Transmitter Buffer Register
Bit
[7:0] Received data (When read data)
Data to transmit (When write data)
R/W
R The total number of data bytes remained in Tx FIFO
S3C6400X RISC MICROPROCESSOR
Description
Description
Bit 4 64-byte FIFO
0 0 Reserved
0 1 48
1 0 32
1 1 08
Description
Description
Description
Reset Value
0x12
Initial State
00
01
0010
Reset Value
0x00
Initial State
0x00
Reset Value
0x00