Toshiba H1 Series Data Book page 346

Bit symbol PLSEL
SIRCR
(1207H) Read/Write
After reset
Select
transmit
pulse width
Function
0: 3/16
1: 1/16
7 6 5
RXSEL TXEN
0 0 0
Receive Transmit
data 0: disable
0: "H" pulse 1: enable
1: "L" pulse
Figure 3.14.21 IrDA Control Register
92CZ26A-343
4 3
RXEN SIRWD3 SIRWD2
R/W
0 0
Receive Select receive pulse width
Set effective pulse width for equal or more than 2x ×
0: disable
(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
x = 1/f
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
TMP92CZ26A
2 1 0
SIRWD1 SIRWD0
0 0 0
FPH