P9222-R datasheet(51/58 Pages) RENESAS

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P9222-R/RN Datasheet

May 5, 2022

Table 36. ADC Result Register (0xD6, 16-bit, GP1 in Default Config)

Address and

Bit

Default

Value

Function and Description

0xD6 [15:0]

AdcResult[1]

Configurable for GPIO, Temperature, Vout, Iout, or Vrect. By default it is configured

to GP1. The value is always in ADC counts and therefore must be converted to the

desired units.

For GPIOs the conversion is:

AdcResult[1] * 2100 / 4096 = Voltage on GP1 in mV

Table 37. ADC Result Register (0xD8, 16-bit, GP2 in Default Config)

Address and

Bit

Default

Value

Function and Description

0xD8 [15:0]

AdcResult[2]

Configurable for GPIO, Temperature, Vout, Iout, or Vrect. The value is always in

ADC counts and therefore must be converted to the desired units.

For GPIOs the conversion is:

AdcResult[2] * 2100 / 4096 = Voltage on GP2 in mV

Table 38. ADC Result Register (0xDA, 16-bit, Die Temperature in Default Config)

Address and

Bit

Default

Value

Function and Description

0xDA [15:0]

AdcResult[3]

Configurable for GPIO, Temperature, Vout, Iout, or Vrect. The value is always in

ADC counts and therefore must be converted to the desired units.

For the conversion is:

AdcResult[3] * ( 2.1*200 / 4096 ) - 280 = Temperature in degC

Table 39. External Thermistor Voltage on GP0 (0xB0, 16-bit)

Address and

Bit

Default

Value

Function and Description

0xB0 [15:12]

Reserved

0xB0 [11:0]

ExtTemp

0xFFF

12-bit raw data of the thermistor ADC reading on GP0 pin.

Table 40. VRECT Target Register (0x90, 16-bit)

Address and

Bit

Default

Value

Function and Description

0x90 [15:0]

VrectTarget

0x4F3

Current value of VrectTarget in ADC codes. The ADC code to Voltage conversion

formula is:

Vrect(V) = Vrect(adc code) * 21(V) / 4095

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