P9221-R Datasheet

© 2017 Integrated Device Technology, Inc.

26

October 10, 2017

Address and Bit

Register or Bit Field Name

R/W

Default

Function and Description

0034HEX [0]

Current_Limit_Status

R

0BIN

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

the P9221-R sends an End Power Transfer (EPT) packet to the

transmitter.

0035HEX [7:0]

Reserved

R

00HEX

Table 13. 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]

Reserved

R

0BIN

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 36HEX 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 14. 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]

Reserved

R

1BIN

0038HEX [3]

Reserved

R

1BIN

0038HEX [2]

OVER_TEMP_INT_EN

R

1BIN

“0” disables the INT_OVER_TEMP interrupt.

"1" enables the interrupt.

0038HEX [1]

VRECT_OV_INT_EN

RW

1BIN

“0” disables the INT_VRECT_OV interrupt.

"1" enables the interrupt.

0038HEX [0]

OC_Limit_Status_INT_EN

RW

1BIN

“0” disables the INT_OC_Limit_Status interrupt.

"1" enables the interrupt.

0039HEX [7:0]

Reserved

RW

00HEX