Datasheet

LTC3880/LTC3880-1

3880fc

For more information www.linear.com/LTC3880

PMBus

COMMAND DETAILS

MFR_PADS

This command provides the user a means of directly reading the digital status of the I/O pins of the device. The bit

assignments of this command are as follows:

BIT ASSIGNED DIGITAL PIN

15 V

DD33

OV Fault

14 V

DD33

UV Fault

13 Reserved

12 Reserved

11 ADC Values Invalid, Occurs

During Start-Up

10 Device Driving ALERT Low

9 PowerGood1

8 PowerGood0

7 Device Driving RUN1 Low

6 Device Driving RUN0 Low

5 RUN1

4 RUN0

3 Device Driving GPIO1 Low

2 Device Driving GPIO0 Low

1 GPIO1

0 GPIO0

A 1 indicates the condition is true.

This read-only command has two data bytes.

MFR_COMMON

The MFR_COMMON command contains bits that are common to all LTC digital power and telemetry products.

BIT MEANING

7 CHIP NOT DRIVING ALERT LOW

6 CHIP NOT BUSY

5 CALCULATIONS NOT PENDING

4 OUTPUT NOT IN TRANSITION

3 NVM Initialized

2 Reserved

1 SHARE_CLK Timeout

0 WP Pin Status

This read-only command has one data byte.