User Manual

112

8111A–AVR–05/08

AT86RF231

• Bit 2 - DVDD_OK

This register bit indicates if the internal 1.8V regulated voltage supply DVDD has settled. The bit

is set to logic high, if DVREG_EXT = 1.

Note

• While the reset value of this bit is 0, any practical access to the register is only possible when

DVREG is active. So this bit is normally always read out as 1.

• Bit [1:0] - Reserved

Table 9-8. Regulated Voltage Supply Control for Digital Building Blocks

DVDD_OK 0

Digital voltage regulator disabled or supply voltage not stable

1 Digital supply voltage has settled