P9225-R Datasheet

© 2018 Integrated Device Technology, Inc.

23

November 12, 2018

11. Functional Registers

The following tables provide the address locations, field names, available operations (R or RW), default values, and functional descriptions of

Table 9.

Device Identification Register

Address and Bit

Register Field Name

R/W Default

Function and Description

Part_number_L

R

Chip ID low byte

Part_number_H

R

Chip ID high byte

Table 10. Firmware Major Revision

Address and Bit

Register Field Name

R/W Default

Function and Description

FW_Major_Rev_L

R

Major firmware revision low byte

FW_Major_Rev_H

R

Major firmware revision high byte

Table 11. Firmware Minor Revision

Address and Bit

Register Field Name

R/W Default

Function and Description

FW_Minor_Rev_L

R

Minor firmware revision low byte

FW_Minor_Rev_H

R

Minor firmware revision high byte

Table 12. Status Registers

Address and Bit

Register Field Name

R/W Default

Function and Description

Vout_Status

R

“0” output voltage is off.

“1” output voltage is on.

Reserved

R

Reserved

R

Reserved

R

Reserved

R

Thermal_SHTDN_Status

R

“0” indicates no over-temperature condition exists.

“1” indicates that the die temperature exceeds 130°C or the NTC is

less than 0.6V. The P9225-R sends an End Power Transfer (EPT)

packet to the transmitter.

VRECT_OV_ Status

R

sends an End Power Transfer (EPT) packet to the transmitter.

Current_Limit_Status

R

“1” indicates current limit has been exceeded. The P9225-R sends

an End Power Transfer (EPT) packet to the transmitter.

Reserved

R