P9415-R-EVK Evaluation Kit
R16UH0015EU0100 Rev.1.0
May 27, 2021
Page 38
Table 42. Foreign Object Detection Registers (FOD) (0x68-0x77)
The FOD registers are divided into eight pairs. Each pair has one byte for gain setting and one byte for offset
setting. The first six pairs control the Received Power calculation for six power sectors during the Power Transfer
phase. The seventh pair calibrates the internal DC Load. The set values of the FOD registers are found with the
help of a Renesas developed calibration procedure using the nok9 tester.
The firmware initializes the FOD registers for BPP mode. The correct set is loaded at the completion of the ID
and Configuration Phase. The AP can modify the registers at any time if needed to update the values.
Address
and Bit
Register Field Name
R/W
Default
Value
Function and Description
0x68 [7:0]
GAIN_0
R/W
–
FOD coefficients for Power Region 0: Gain (slope settings).
0x69 [7:0]
OFFSET_0
R/W
–
FOD coefficients for Power Region 0: Offset settings.
0x6A [7:0]
GAIN_1
R/W
–
FOD coefficients for Power Region 1: Gain (slope settings).
0x6B [7:0]
OFFSET_1
R/W
–
FOD coefficients for Power Region 1: Offset settings.
0x6C [7:0]
GAIN_2
R/W
–
FOD coefficients for Power Region 2: Gain (slope settings).
0x6D [7:0]
OFFSET_2
R/W
–
FOD coefficients for Power Region 2: Offset settings.
0x6E [7:0]
GAIN_3
R/W
–
FOD coefficients for Power Region 3: Gain (slope settings).
0x6F [7:0]
OFFSET_3
R/W
–
FOD coefficients for Power Region 3: Offset settings.
0x70 [7:0]
GAIN_4
R/W
–
FOD coefficients for Power Region 4: Gain (slope settings).
0x71 [7:0]
OFFSET_4
R/W
–
FOD coefficients for Power Region 4: Offset settings.
0x72 [7:0]
GAIN_5
R/W
–
FOD coefficients for Power Region 5: Gain (slope settings).
0x73 [7:0]
OFFSET_5
R/W
–
FOD coefficients for Power Region 5: Offset settings.
0x74 [7:0]
GAIN_6
R/W
–
FOD coefficients for Power Region 6: Gain (slope settings).
0x75 [7:0]
OFFSET_6
R/W
–
FOD coefficients for Power Region 6: Offset settings.
0x76 [7:0]
GAIN_7
R/W
–
FOD coefficients for Power Region 7: Gain (slope settings).
0x77[ 7:0]
OFFSET_7
R/W
–
FOD coefficients for Power Region 7: Offset settings.
Table 43. Vin Register in Tx Mode (0x70)
Address
and Bit
Register Field Name
R/W
Default
Value
Function and Description
0x70 [15:0]
TxVin
R
–
Input voltage, value in mV.
Table 44. Vrect Register in Tx Mode (0x72)
Address
and Bit
Register Field Name
R/W
Default
Value
Function and Description
0x72 [15:0]
TxVrect
R
–
Vrect voltage in Tx mode, value in mV.
