P9221-R3 Datasheet

© 2017 Integrated Device Technology, Inc.

31

October 20, 2017

Address and Bit

Register or Bit Field Name

R/W

Default

Function and Description

0034HEX [1]

VRECT_OV_ Status

R

0BIN

“1” indicates the rectifier voltage exceeds 20V for VOUT=12V.

In this case, the P9221-R3 sends an End Power Transfer

(EPT) packet to the transmitter.

0034HEX [0]

Current_Limit_Status

R

0BIN

“1” indicates the current limit has been exceeded. In this

case, the P9221-R3 sends an End Power Transfer (EPT)

packet to the transmitter.

0035HEX [7:0]

Reserved

R

00HEX

Table 15. Interrupt Status Registers

Address and Bit

Register or Bit Field Name

R/W

Default

Function and Description

0036HEX [7]

INT_Vout_Status

R

0BIN

“0” indicates the output voltage has not changed.

“1” indicates the output voltage changed.

0036HEX [6]

Reserved

R

0BIN

0036HEX [5]

Reserved

R

0BIN

0036HEX [4]

User_Data_Received_status

R

0BIN

“1” indicates that the P9221-R3 has received data from the

P9242-R3. This bit must be reset after the application

processor reads the user data.

0036HEX [3]

Reserved

R

0BIN

0036HEX [2]

INT_OVER_TEMP_Status

R

0BIN

“1” indicates an over-temperature condition exists.

0036HEX [1]

INT_VRECT_OV_Status

R

0BIN

“1” indicates a rectifier over-voltage condition exists.

0036HEX [0]

INT_OC_Limit_Status

R

0

“1” indicates the current limit has been exceeded.

0037HEX [7:0]

Reserved

R

00HEX

Note: If any bit in the Interrupt Status register 0036HEX is “1” and the corresponding bit in the Interrupt Enable register 38HEX is set to “1,” the

INT pin will be pulled down indicating an interrupt event has occurred.

Table 16. Interrupt Enable Registers

Address and Bit

Register or Bit Field Name

R/W

Default

Function and Description

0038HEX [7]

Vout_Status_INT_EN

RW

0BIN

“0” disables the INT_Vout_Status interrupt.

"1" enables the interrupt.

0038HEX [6]

Reserved

R

0BIN

0038HEX [5]

Reserved

R

0BIN

0038HEX [4]

User_Data_Received_EN

R

1BIN

“0” disables the User_Data_Received interrupt.

"1" enables the interrupt.

0038HEX [3]

Reserved

R

1BIN

0038HEX [2]

OVER_TEMP_INT_EN

R

1BIN

“0” disables the INT_OVER_TEMP interrupt.

"1" enables the interrupt.