Analog Devices ADSP-BF506F Hardware Reference Manual page 609

The polarity of receive data is selectable, using the
gives examples of each polarity type.
• = 0 assumes that the receive data input idles 0 and each
IRPOL
active 1 transition corresponds to a UART NRZ value of 0.
• = 1 assumes that the receive data input idles 1 and each
IRPOL
active 0 transition corresponds to a UART NRZ value of 0.
RECEIVED
IrDA
PULSE
IR POL = 1
RECEIVED
IrDA
PULSE
IR POL = 0
SAMPLING
WINDOWN
PULSE
DETECT
OR
OUTPUT
RECOVERED
NRZ INPUT
Figure 15-5. IrDA Receiver Pulse Detection

In the IrDA mode the
always exactly 16 times the bit rate.
ADSP-BF50x Blackfin Processor Hardware Reference
0
0
8/16 16/16
0
bit is ignored. The sample frequency is
EDB0
UART Port Controllers
bit. Figure 15-5
IRPOL
1
1
8/16 16/16
1
15-15