JAJSMF5 データシート

JAJSMF5B september 2022 – june 2023 TPS25990

PRODUCTION DATA

PK_MIN_AVG is a manufacturer-specific command that resets all the maximum, minimum, and average telemetry registers, such as READ_VIN_PEAK, READ_IIN_PEAK, READ_TEMP_PEAK, READ_PIN_PEAK, READ_VIN_MIN, READ_VOUT_MIN, READ_VIN_AVG, READ_VOUT_AVG, READ_IIN_AVG, READ_TEMP_AVG, and READ_PIN_AVG. This register is also used to program the number of ADC samples to be used for averaging. Averaging a higher number of samples improves the accuracy at the expense of higher latency.

This command uses the PMBus® read or write byte protocol.

The details of this register are shown in Table 9-69.

Table 8-60 PK_MIN_AVG Register Description

Bit	Name	Value	Description	Default	Access
7	RESET_PEAK	1	Reset all peak registers to 0	0	Read/Write
7	RESET_PEAK	0	No action	0
6	RESET_AVG	1	Reset all average registers to 0	0
6	RESET_AVG	0	No action	0
5	RESET_MIN	1	Reset all minimum registers to 0	0
5	RESET_MIN	0	No action	0
4:3	Reserved	00	Reserved	00
2:0	AVG_CNT	111	Average count = 128	000
		110	Average count = 64
		101	Average count = 32
		100	Average count = 16
		011	Average count = 8
		010	Average count = 4
		001	Average count = 2
		000	Average count = 1

Note:

A write command to this register should be preceded by the MFR_WRITE_PROTECT command to unlock the device first to prevent accidental accidental/spurious writes.
As soon as the PK_MIN_AVG command is executed to clear the peak, minimum, and average registers, the RESET_PEAK, READ_MIN, and READ_AVG bits are automatically cleared to zero (0).