Datasheet

Section 15 Serial Communication Interface (SCI, IrDA)
Page 942 of 1384 R01UH0310EJ0500 Rev. 5.00
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
(2) Reception
In reception, IR frame data is converted to a UART frame by the IrDA interface, and input to the
SCI.
When a high pulse is detected, 0 data is output, and if there is no pulse during a one-bit interval, 1
data is output. Note that a pulse shorter than the minimum pulse width of 1.41 µs will be identified
as a 0 signal.
(3) High Pulse Width Selection
Table 15.12 shows possible settings for bits IrCKS2 to IrCKS0 (minimum pulse width), and
operating frequencies of this LSI and bit rates, for making the pulse width shorter than 3/16 times
the bit rate in transmission.