User's Manual

Datalogic Scanning, Inc
959 Terry Street
Eugene, Oregon 97402
Page 96 10/23/2009
Revision X2
The filter constant applied to instantaneous values of the slow clock period sampled in sniff is
1/2^PSKEY_SLOW_CLOCK_FILTER_SHIFT. When the difference between the last period from the
slow clock calibration and the filtered value exceeds the calibrated value divided by
PSKEY_SLOW_CLOCK_FILTER_DIVIDER
, a recalibration of the slow clock is performed.
Key Name Key Number Type Default Setting
PSKEY_LO_VCO_STANDBY 0x0392 bool FALSE
This key is for CSR's internal use for diagnosing radio issues. This key has no effect on some versions of
firmware.
DO NOT CHANGE THE VALUE OF THIS KEY UNLESS INSTRUCTED TO DO SO BY CSR.
This key controls whether critical radio components are kept in standby mode between packets or allowed
to turn off. Keeping the components in standby is the safer option. The difference in power consumption
between the two modes is less than 1% when the radio is active and makes no difference when there is no
radio activity. All testing and qualification will be run at the default setting.
Changing the value of this key will invalidate qualification and all testing results. A thorough series of tests
will need to be run to ensure the new value is correct. A normal test suite is unlikely to pick up problems.
Qualification tests are unlikely to pick up problems. Tests will need to be run on a variety of modules, with
chips from a variety of batches, at a range of environmental conditions (including a range of temperatures
and temperature gradients).
This key has no effect on the operation of the radio in radiotest test modes. It only affects operation during
real links. This makes testing tricky.
Key Name Key Number Type Default Setting
PSKEY_LO_DIV_LATCH_BYPASS 0x0393 bool FALSE
This key is for CSR's internal use for diagnosing radio issues. This key has no effect on some versions of
firmware.
DO NOT CHANGE THE VALUE OF THIS KEY UNLESS INSTRUCTED TO DO SO BY CSR.
This key selects between two ways of controlling a critical radio component. CSR will make a
determination as to the best setting and make this the default. All testing and qualification will be run at this
default setting.
Changing the value of this key will invalidate qualification and all testing results. A thorough series of tests
will need to be run to ensure the new value is correct. A normal test suite is unlikely to pick up problems.
Qualification tests are unlikely to pick up problems. Tests will need to be run on a variety of modules, with
chips from a variety of batches, at a range of environmental conditions (including a range of temperatures
and temperature gradients).
Key Name Key Number Type Default Setting
PSKEY_MR_TX_IF_ATTEN_OFF_TEMP 0x0394 int16 -80
This PSKEY controls the temperature above which the TX IF attentuator is turned off when using EDR.
The units of this key are degrees Celsius. The value should correspond to the discontinuity in the
temperature values in PSKEY_TEMPERATURE_VS_DELTA_TX_BB_MR_PAYLOAD
and