User Manual

32
8111A–AVR–05/08
AT86RF231
• Bit 0 - IRQ_POLARITY
The default polarity of the IRQ pin is active high. The polarity can be configured to active low via
register bit IRQ_POLARITY, see Table 6-11 on page 32.
This setting does not affect the polarity of the Frame Buffer Empty Indicator, refer to Section
11.7 “Frame Buffer Empty Indicator” on page 152. The Frame Buffer Empty Indicator is always
active high.
Table 6-11. Configuration of Pin 24 (IRQ)
Register Bit Value Description
IRQ_POLARITY 0
pin IRQ high active
1 pin IRQ low active