This 8-bit value sets the pulse modulation scheme for the transmitter. Setting
this register will only have an effect if IRCOM mode is selected by the USART,
and it must be configured before the USART transmitter is enabled (TXEN).
| Value | Description |
|---|
| 0x00 |
3/16 of
the baud rate period pulse modulation is used |
| 0x01- 0xFE |
Fixed
pulse length coding is used. The 8-bit value sets the number of peripheral
clock periods for the pulse. The start of the pulse will be synchronized
with the rising edge of the baud rate clock. |
| 0xFF |
Pulse
coding disabled. RX and TX signals pass through the IRCOM module unaltered.
This enables other features through the IRCOM module, such as half-duplex
USART, loop-back testing, and USART RX input from an event
channel. |
