Toshiba TLCS-900/H1 Series Manual page 317

SIR0CR Bit symbol PLSEL
(1207H)
Read/Write
Reset State
Function Select
transmit
pulse
width
0: 3/16
1: 1/16
7 6 5
RXSEL TXEN
0 0 0
Receive Transmit
data 0: disable
1: enable
0: "H" pulse
1: "L" pulse
Figure 3.14.28 IrDA Control Register (for SIO0)
92CF30-315
4 3
RXEN SIR0WD3 SIR0WD2
R/W
0 0
Receive Select receive pulse width
0: disable Set effective pulse width to equal to more than 2x
× (value + 1) + 100ns
1: enable
Can be set : 1 to 14
Can not be set : 0, 15
Select receive pulse width
Formula: Effective pulse width ≥ 2x × (value + 1) + 100ns
0000 Cannot be set
0001 Equal or more than 4x + 100ns
to
1110 Equal or more than 30x + 100ns
1111 Can not be set
Receive (recovery) operation
0 Disable receiving operation
(Received data is ignored)
1 Enabled receiving operation
Transmit (modulation) operation
0 Disabled transmission operation
(Input from SIO is ignored)
1 Enabled transmission operation
Select transmit pulse width
0 3/16 pulse width
1 1/16 pulse width
Note: If a pulse width complying with the IrDA1.0
standard (1.6 μ s min.) can be guaranteed with
a low baud rate, setting this bit to "1" shortens
the duration of infrared ray activation,
resulting in reduced power dissipation.
TMP92CF30
2 1 0
SIR0WD1 SIR0WD0
0 0 0
2009-06-12