SLVSJC6 Data sheet

SLVSJC6 December 2025 TPS544B27W

PRODUCTION DATA

7.3 PMBus Commands

Section 7.3 lists the memory-mapped registers for the PMBus Command Map registers. All register offset addresses not listed in Section 7.3 should be considered as reserved locations and the register contents should not be modified.

Table 7-1 PMBus Commands

Address	Acronym	Write Transaction	Read Transaction	Section
01h	OPERATION	Write Byte	Read Byte	Go
02h	ON_OFF_CONFIG	Write Byte	Read Byte	Go
03h	CLEAR_FAULTS	Send Byte	N/A	Go
0Eh	PASSKEY	Block Write	Block Read	Go
10h	WRITE_PROTECT	Write Byte	Read Byte	Go
15h	STORE_USER_ALL	Send Byte	N/A	Go
16h	RESTORE_USER_ALL	Send Byte	N/A	Go
19h	CAPABILITY	N/A	Read Byte	Go
1Bh	SMBALERT_MASK	Write Word	Block Write-Block Read Process Call	Go
20h	VOUT_MODE	N/A	Read Byte	Go
21h	VOUT_COMMAND	Write Word	Read Word	Go
22h	VOUT_TRIM	Write Word	Read Word	Go
24h	VOUT_MAX	N/A	Read Word	Go
25h	VOUT_MARGIN_HIGH	Write Word	Read Word	Go
26h	VOUT_MARGIN_LOW	Write Word	Read Word	Go
27h	VOUT_TRANSITION_RATE	Write Word	Read Word	Go
28h	VOUT_DROOP	N/A	Read Word	Go
29h	VOUT_SCALE_LOOP	Write Word	Read Word	Go
33h	FREQUENCY_SWITCH	Write Word	Read Word	Go
35h	VIN_ON	Write Word	Read Word	Go
36h	VIN_OFF	Write Word	Read Word	Go
40h	VOUT_OV_FAULT_LIMIT	Write Word	Read Word	Go
41h	VOUT_OV_FAULT_RESPONSE	Write Byte	Read Byte	Go
42h	VOUT_OV_WARN_LIMIT	Write Word	Read Word	Go
43h	VOUT_UV_WARN_LIMIT	Write Word	Read Word	Go
44h	VOUT_UV_FAULT_LIMIT	Write Word	Read Word	Go
45h	VOUT_UV_FAULT_RESPONSE	Write Byte	Read Byte	Go
46h	IOUT_OC_FAULT_LIMIT	Write Word	Read Word	Go
47h	IOUT_OC_FAULT_RESPONSE	N/A	Read Byte	Go
4Ah	IOUT_OC_WARN_LIMIT	Write Word	Read Word	Go
4Fh	OT_FAULT_LIMIT	Write Word	Read Word	Go
50h	OT_FAULT_RESPONSE	Write Byte	Read Byte	Go
51h	OT_WARN_LIMIT	Write Word	Read Word	Go
55h	VIN_OV_FAULT_LIMIT	Write Word	Read Word	Go
60h	TON_DELAY	Write Word	Read Word	Go
61h	TON_RISE	Write Word	Read Word	Go
64h	TOFF_DELAY	Write Word	Read Word	Go
65h	TOFF_FALL	Write Word	Read Word	Go
6Bh	PIN_OP_WARN_LIMIT	Write Word	Read Word	Go
78h	STATUS_BYTE	N/A	Read Byte	Go
79h	STATUS_WORD	N/A	Read Word	Go
7Ah	STATUS_VOUT	Write Byte	Read Byte	Go
7Bh	STATUS_IOUT	Write Byte	Read Byte	Go
7Ch	STATUS_INPUT	Write Byte	Read Byte	Go
7Dh	STATUS_TEMPERATURE	Write Byte	Read Byte	Go
7Eh	STATUS_CML	Write Byte	Read Byte	Go
7Fh	STATUS_OTHER	Write Byte	Read Byte	Go
80h	STATUS_MFR_SPECIFIC	Write Byte	Read Byte	Go
88h	READ_VIN	N/A	Read Word	Go
89h	READ_IIN	N/A	Read Word	Go
8Bh	READ_VOUT	N/A	Read Word	Go
8Ch	READ_IOUT	N/A	Read Word	Go
8Dh	READ_TEMPERATURE_1	N/A	Read Word	Go
97h	READ_PIN	N/A	Read Word	Go
98h	PMBUS_REVISION	N/A	Read Byte	Go
99h	MFR_ID	N/A	Block Read	Go
9Ah	MFR_MODEL	Block Write	Block Read	Go
9Bh	MFR_REVISION	Block Write	Block Read	Go
ADh	IC_DEVICE_ID	N/A	Block Read	Go
AEh	IC_DEVICE_REV	N/A	Block Read	Go
C7h	EXTENDED_WRITE_PROTECT	Write Word	Read Word	Go
CDh	NVM_PATCH_SPACE	Block Write	Block Read	Go
CFh	CLOUD_OPTIONS	Write Byte	Read Byte	Go
D0h	SYS_CFG_USER1	Write Word	Read Word	Go
D1h	SVID_ADDR_CFG_USER	Write Word	Read Word	Go
D2h	PMBUS_ADDR	Write Word	Read Word	Go
D4h	IMON_CAL	Write Byte	Read Byte	Go
D5h	COMP	Block Write	Block Read	Go
D6h	VBOOT_DCLL	Block Write	Block Read	Go
D7h	VBOOT_OFFSET_1	Write Word	Read Word	Go
D8h	IIN_CAL	Write Byte	Read Byte	Go
DAh	SVID_IMAX	Write Word	Read Word	Go
DBh	SVID_EXT_CAPABILITY_VIDOMAX	Write Word	Read Word	Go
FCh	FUSION_ID0	N/A	Read Word	Go
FDh	FUSION_ID1	N/A	Block Read	Go

Complex bit access types are encoded to fit into small table cells. Section 7.3 shows the codes that are used for access types in this section.

Table 7-2 PMBus Command Map Access Type Codes

Access Type	Code	Description
Read Type
R	R	Read
Write Type
W	W	Write
W1C	W 1C	Write 1 to clear
Reset or Default Value
-n		Value after reset or the default value