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MP2884A Datasheet(PDF) 35 Page - Monolithic Power Systems |
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MP2884A Datasheet(HTML) 35 Page - Monolithic Power Systems |
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35 / 107 page  MP2884A – DIGITAL PWM CONTROLLER WITH PMBUS AND PWM-VID MP2884A Rev. 1.01 www.MonolithicPower.com 35 12/25/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. PAGE 0 REGISTER MAP PAGE (00h) The PAGE command provides the ability to configure, control, and monitor all registers, including test mode and the EEPROM, through only one physical address. Command PAGE Format Unsigned binary Bit 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function X X PAGE Bits Bit Name Description 7:6 RESERVED Unused. X indicates that writes are ignored and reads are always 0. 5:0 PAGE Register page selector. 00(hex): Page 0, all PMBus commands address normal function registers 02(hex): Page 2, all PMBus commands address test mode registers 28(hex): Page 28, all PMBus commands address EEPROM registers (00h~FFh) 29(hex): Page 29, all PMBus commands address EEPROM registers (100h~1FFh) EE_WORD_WR_EN = 1: Page 28/Page 29 is accessible EE_WORD_WR_EN = 0: Page 28/Page 29 is not accessible EE_WORD_WR_EN is bit[2] of MFR_EEPROM_CTRL (06h) OPERATION (01h) This register is used to turn the output on or off when EN is high. OPERATION is also used to set the output voltage to the upper or lower MARGIN voltages. Command OPERATION Format Unsigned binary Bit 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function OPERATION_MODE Bits Bit Name Description 7:0 OPERATION_MODE Operation mode. 00xxxxxx: Hi-Z off 01xxxxxx: soft off 1000xxxx: normal on 1001xxxx: margin low 1010xxxx: margin high The value of “x” does not matter. CLEAR_FAULTS (03h) The CLEAR_FAULTS command is used to clear any fault bits in all status registers (STATUS_BYTE, STATUS_WORD, STATUS_VOUT, STATUS_IOUT, STATUS_INPUT, STATUS_TEMPERATURE, and STATUS_CML). This command is write only. There is no data byte for this command. |
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