User-defined startup configuration

STUSB4710

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DocID030499 Rev 4

4

User-defined startup configuration

4.1

Parameter overview

The STUSB4710 has a set of user-defined parameters that can be customized by NVM re-

configuration of USB Type-C and PD interface and to define a new configuration to meet

specific customer requirements addressing various applications, use cases or specific

implementations.

The NVM re-programming overrides the initial default setting to define a new default setting

that is used at power-up or after a reset. The default value is copied at power-up, or after a

is possible few times with a customer password.

Table 6: PDO configurations in NVM

Feature

Parameter

Value

Default

PDO1

Voltage

5 V

5 V

Current

Configurable

– defined by PDO1_I [3:0]

3 A

PDO2

Voltage

Configurable

– defined by PDO2_V [1:0]

9 V

Current

Configurable

– defined by PDO2_I [3:0]

3 A

PDO3

Voltage

Configurable

– defined by PDO3_V [1:0]

12 V

Current

Configurable

– defined by PDO3_I [3:0]

3 A

PDO4

Voltage

Configurable

– defined by PDO4_V [1:0]

15 V

Current

Configurable

– defined by PDO4_I [3:0]

3 A

PDO5

Voltage

Configurable

– defined by PDO5_V [1:0]

20 V

Current

Configurable

– defined by PDO5_I [3:0]

2.25 A

When a default value is changed during system boot by software, the new settings apply as

long as the STUSB4710is being run and until it is changed again. But after power-off and

power-up, or after a hardware reset, the STUSB4710 takes back default values defined in

the NVM.

4.2

PDO

– voltage configuration in NVM

PDO2_V [1:0], PDO3_V [1:0], PDO4_V [1:0] and PDO5_V [1:0] can be configured with the

following values:

Table 7: PDO NVM voltage configuration

Value

Configuration

2b00

9 V

2b01

15 V

2b10

PDO_FLEX_V1

2b11

PDO_FLEX_V2

PDO_FLEX_V1 and PDO_FLEX_V2 are defined in a specific 10-bit register, value is being

expressed in 50 mV units.