GOODIX CONFIDENTIAL
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Bit5~0:
Detect_Confirm_Times, Confirmed noise level after repeated noise tests, recommended setting is
15~20.
[0x807D] Hopping_Flag
Bit7:
Hopping_En, frequency hopping enable bit (1: enabled, 0: disabled).
Bit6:
Range_Ext, frequency hopping range extension flag. For V1040, please configure to 1.
Bit5:
Dis_Force_Ref, configured to 0: update the baseline compulsively after frequency hopping; configured
to 1: do not update the baseline compulsively after frequency hopping.
Bit4:
Delay_Hopping, configured to 1: frequency hopping occurs after finger touch leaves; this bit configured
to 0 or Dis_Force_Ref configured to 1: Delay_Hopping is disabled.
Bit3~0:
Detect_Time_Out
，
timeout for noise detection, unit: s.
[0x807E] Hoppging_Threshold
Bit3~0:
Hopping_Hit_Threshold
，
condition for optical frequency selection; when the interference of the current
operating frequency
－
the minimum interference >set value x4
，
then the optical frequency is selected and frequency
hopping is enabled.
[0x809A-0x809B] Key_Sens
The sensitivity coefficient configuration of 4 independent touch keys, can be configured to 0 ~15 (16 grades
in total). Higher grade indicates higher sensitivity. This is valid only for independent touch keys, which is to avoid
sensitivity inconsistency between touch keys arising out of the nodal capacitance deviation during the independent
touch key design process.
[0x809C] Key_Restrain
Bit3~0:
Adjacent key restrain parameter. When the second largest value is greater than the largest value
Key_Restrain/16, no touch key is reported. Recommended setting is 7±2.
[0x80A2] Data_Threshold
HotKnot technology uses frequency to indicate data. Two hotknot terminals perform data transmission by
issuing signals of specified frequency. Data_Threshold is a threshold to distinguish whether there is signal or not.
When LCD is turned off and no signal is present, the white noise received by HotKnot terminal is within 5. It is
recommended that the Data_Threshold be greater than 5 and no less than 10.
[0x80A3] Pxy_Threshold
If the HotKnot proximity sensing function is enabled when LCD is on, employ differential method to filter
