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9 EVM Configuration Using the Fusion GUI
The TPS549D22 installed on this EVM leave the factory pre-configured. See Table 9-1 for a short list of key
factory configuration parameters as obtained from the configuration file.
Table 9-1. Key Factory Configuration Parameters
Cmd ID With Phase Cmd Code Hex Encoded Hex
[HiByte|LoByte]
Comments
CAPABILITY 0x19 0xD0 Max Bus: 1000 khz; PEC: Yes; SMBALERT#: Yes
MFR_00 0xD0 0x00 0
MFR_01
(PGOOD_DLY) 0xD1 0x12 PGD:1024?s [010b], POD:1024?s [010b]
MFR_02 0xD2 0x13 CM: True, HICLOFF: True, SST: 0x00, FORCESKIPSS: True,
SEQ: False, TRK: False
MFR_03 0xD3 0x93 FS:625kHz [011b], RCSP:R ? 1 [01b], DCAP3:True
MFR_04 0xD4 0x80 DCAP3_Offset:0mV [00b], DCAP3_Offset_Sel:True
MFR_06 0xD6 0x05 VDDUVLO:4.25V [101b]
MFR_07 0xD7 0x8F VTRKIN:1.25V [1111b], TRKOPTION:False, SPARE:False,
VPBAD:True
MFR_33 0xF1 0x00 0
MFR_42 0xFA 0x00 0
MFR_44 0xFC 0x0201 ID: 0x020 (TPS549C20), Revision: 0x1
ON_OFF_CONFIG 0x02 0x17 Mode: CONTROL Pin Only; Control: Active High, Turn off
Immediately
OPERATION 0x01 0x00 Operation is not used to enable regulatio; Unit: ImmediateOff;
Margin: None
STATUS_BYTE 0x78 0x00 Status: Output Off, Vout OV Fault, IOUT OC Fault, Vin UV
Fault, Temperature, CML
STATUS_CML 0x7E 0x00 Status: Invalid Command, Invalid Data, PEC Fault, Other
Comms Fault
STATUS_IOUT 0x7B 0x00 Status: Iout OC Fault, Iout OC Fault with LV Shutdown, Iout
UC Fault
STATUS_VOUT 0x7A 0x00 Status: Vout OV Fault, OV Warning, UV Fault, UV Warning
VOUT_COMMAND 0x21 0x01CD VOUT_COMMAND=0.900 V
VOUT_MARGIN_HIGH 0x25 0x0266 VOUT_MARGIN_HIGH=1.199 V
VOUT_MARGIN_LOW 0x26 0x0266 VOUT_MARGIN_LOW=1.199 V
WRITE_PROTECT 0x10 0x00 Enable Writes To All Commands
If it is desired to configure the EVM to settings other than the factory settings shown in Table 3, the TI Fusion
Digital Power Designer software can be used for reconfiguration. It is necessary to have input voltage applied
to the EVM prior to launching the software so that the TPS549D22 installed is active and able to respond to the
GUI and the GUI can recognize the device.
www.ti.com EVM Configuration Using the Fusion GUI
SLUUBG4A – JULY 2016 – REVISED AUGUST 2021
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