Datasheet

Page 29 of 161
nRF8001 Product Specification
Revision 1.2
8 nRF8001 configuration
nRF8001’s hardware and protocol parameters are configured through the nRFgo Studio (nRF8001
Configuration
menu option), see Part B, Section 22.3 on page 81. These parameters may be written to
non-volatile memory and are permanently stored through all power modes, see chapter 9 on page 31
.
These parameters are available from the Hardware Settings and the GAP Settings tabs in nRFgo Studio.
Once programmed, the parameters set the circuit to a default state on power up or reset. The available
configuration parameters that you can set are listed in Table 5.
Hardware
settings
Description Default
32 KHz clock
source
32.768 kHz reference source:
• Internal RC oscillator
• External crystal
• External digital clock
• External analog source
Internal RC
32 KHz clock
accuracy
32.768 kHz accuracy if using external source:
• 251 ppm to 500 ppm
• 151 ppm to 250 ppm
• 101 ppm to 150 ppm
• 76 ppm to 100 ppm
• 51 ppm to 75 ppm
• 31 ppm to 50 ppm
• 21 ppm to 30 ppm
• 0 ppm to 20 ppm
If the default internal RC is used, this is set automatically to
151 to 250 ppm.
151 to 250 ppm
16 MHz clock
source
Sets the input reference source and the start time of the
internal 16 MHz reference clock:
• Digital source (500 us)
• Crystal source (1.5 ms)
Crystal source
Initial TX power Output power setting of PA:
•-18 dBm
•-12 dBm
• -6 dBm
• 0 dBm
Note: This parameter may also be changed in Active
mode.
0 dBm
DC/DC converter Enables the DC/DC converter
Note: This cannot be enabled if the 32 KHz clock
source is set to “External crystal”.
Disabled
Active signal Sets active signal timing requirements:
• Enable/Disable
• 0 to 20 ms before event start
• Resolution = 312.5 us
•Polarity
• 0 = Active high
• 1 = Active low
Disable