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L6718 数据表(PDF) 44 Page - STMicroelectronics |
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L6718 数据表(HTML) 44 Page - STMicroelectronics |
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44 / 71 page  L6718 power manager L6718 44/71 DocID023399 Rev 3 Table 15. SMBus interface commands Command code Command name and type Body type Description D0h SetVID Read/Write 8b byte Sets VOUT, refer to Table 16: SMBus VID Default 00h D1h VOUTMAX Read/Write 8b byte Sets maximum limit for VOUT = VID+OFFSET. It is not related to VR12 register. Default BFh (2.145 V) D2h DOMAIN Read/Write 1b byte If bit0=“0”, VR12 SVID sets VOUT. If bit0=“1”, SMBus interface is able to set VOUT through SetVID command and bypass the SVID bus indication. Default 00h D3h DPMTH1 Read/Write 8b byte Sets the DPM threshold from 1-phase switching to 2- phase switching in percentage of IMAX. Default 26h (15% IMAX) D4h DPMTH2 Read/Write 8b byte Sets the DPM threshold from 2-phase switching to 3- phase switching in percentage of IMAX. Default 40h (25% IMAX) D5h DPMTH3 Read/Write 8b byte Sets the DPM threshold from 3-phase switching to 4- phase switching in percentage of IMAX. Default 66h (40% IMAX) D6h OVP Read/Write 1b byte If bit0=“0” : OVP is set to VID+OFFSET+500 mV If bit0=“1” : OVP is set to VID+OFFSET+175 mV Default 00h (+500 mV) D7h OCP Read/Write 1b byte If bit0=“0” : OCP is set to 125% of IMAX If bit0=“1” : OCP is set to 137% of IMAX Default 00h (125%) D8h DROOP Read/Write 2b byte If bit1 and bit0=“00” : DROOP is set ON to 100% If bit1 and bit0=“01” : DROOP is set ON to 50% If bit1 and bit0=“11” : DROOP is set OFF Default 00h (100%DROOP) D9h CONFIG Read/Write 5b byte If bit0=“1”, a minimal switching frequency in VFDE is enabled, otherwise VFDE has no down limitation. If bit1=“1”, VFDE is enabled, otherwise VFDE is disabled. If bit2=“1”, DPM is enabled in PS0 with the default threshold, otherwise it is disabled (only core feature). If bit3=“1”, DPM is enabled in PS1 and the device can change from 2 to 1-phase switching with the default threshold (DPMTH1), otherwise it is disabled (only core feature). If bit4=“1”, the device uses 2-phase switching in PS1, otherwise the device uses 1-phase (only core feature). Default multi-phase rail 1Bh Default single-phase rail 0Bh |
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