Intel Agilex® 7 Configuration User Guide

ID 683673
Date 2/05/2024
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2.5.3.4. SDM I/O Pins for Power Management and SmartVID

SDM pins are also available for the SmartVID power management feature for -V and -E devices.

Intel recommends that you use LTC3888 or LTM4677 to regulate the PMBus. The LTM4677 device is the default setting for the Device > Device and Pin Options > Power Management & VID > Slave device type parameter. Select a regulator you use on your board. If you are using a different PMBus regulator, change the default setting from LTM4677 to Other.

Figure 14. Specifying the Slave Device Type for Power Management and VID
Intel® Quartus® Prime Pro Edition software allows you to control the payload value of the Page command. Some PMBus devices contain more than one page per bank of registers, the Page command allows you to select the target Page per bank registers. The Page payload available range is between 0x00 and 0xFF.
Note: Prior the Intel® Quartus® Prime Pro Edition software release, the Page command selected all banks by default.
Figure 15. Specifying the Page Command Setting

Intel Agilex® 7 SmartVID devices require SDM pins listed in the table below configured to control the VID regulator. To configure the pins, go to Device > Device and Pin Options > Configuration. Set the VID mode of operation accordingly to either PMBus Master or PMBus Slave, and set Configuration pin to Configuration Pin Options....

Table 14.  PMBus Modes Pins for VID Regulator
Pin VID Mode of Operation
PMBus Master PMBus Slave
PWMGT_SDA Required Required
PWMGT_SCL Required Required
PWRMGT_ALERT Not available Optional
Figure 16. Specifying the PMBUS Mode Pins for VID Regulator

Refer to the SmartVID Standard Power Devices section in the Intel Agilex® 7 Power Management User Guide for more information about the Power Management and VID implementation guide.