Toshiba TLCS-900/H1 Series Data Book page 180

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 3.9.21 IrDA Control Register
92CH21 - 176
4 3
RXEN SIRWD3 SIRWD2
R/W
0 0
Receive Select receive pulse width
Set effective pulse width for equal or more than 4x ×
0: disable
(value + 1)
1: enable
Can be set : 1 to 4
Can not be set : 0, 15
Select receive pulse width
Formula: Effective pulse width ≥ 4x × (value + 1)
0000 Cannot be set
0001 Equal or more than 8x + 100ns
to
1110 Equal or more than 60x + 100ns
1111 Can not be set
Receive operation
0 Disabled
1 Enabled
Transmit operation
0 Disabled
1 Enabled
Select transmit pulse width
0 3/16
1 1/16
TMP92CH21
2 1
SIRWD1 SIRWD0
0 0
x = 1/f
FPH
0
0