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DA6021 Datasheet(PDF) 94 Page - Renesas Technology Corp |
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DA6021 Datasheet(HTML) 94 Page - Renesas Technology Corp |
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94 / 225 page  DA6021 HIGHLY INTEGRATED POWER MANAGEMENT IC FOR INTEL® ATOM™ Z3000 PROCESSOR Company Confidential Data Sheet Version 3.A - Final 31-Jan-14 © 2014 Dialog Semiconductor GmbH 94 of 224 www.dialog-semiconductor.com 11.6.5.3 V1P8A Registers Register Name V1P8A_CTRL Address 0x5A Page 1 Read/Write Reset Value 0x60 MSB LSB R/W R/W R/W R R R/W R/W R/W V1P8A_VSEL reserved NoS0iX V1P8A _SEL V1P8A _EN V1P8A_EN 0 1 V1P8A off V1P8A on V1P8A_SEL 0 1 V1P8A controlled by SUSPWRDNACK according to sequencing V1P8A controlled by V1P8A_CTRL.V1P8A_EN bit Regardless of V1P8_EN and V1P8A_SEL, V1P8A is disabled when SUSPWRDNACK is de-asserted, means high NoS0iX 0 1 V1P8A active determined by SLP_S0iX_B V1P8A active regardless of SLP_S0iX_B V1P8A_VSEL 000 001 010 011 100 101 110 111 1.620V 1.710V 1.800V 1.817V nominal voltage 1.836V 1.854V 1.890V 1.980V V1P8A_CTRL. SUSPWRDNACK V1P8A V1P8A_SEL V1P8A_EN 1 0 0 Off 1 1 0 On x x 1 Off Table 48: V1P8A Truth Table 11.6.5.4 V1P8A Subsystems V1P8U: This power rail is primarily to supply LPDDR2 or LPDDR3 RAMs. DA6021 provides a control signal V1P8U_EN_B supplied by VSYS and derived from SLP_S4_B sent out by the SoC. When V1P8U_EN_B is asserted low, the signal slew rate is controlled to limit the inrush current when the external P-channel FET is turned on. The current of this power rail is maximum 355mA Register Name V1P8U_CTRL Address 0x5B Page 1 Read/Write Reset Value 0x00 MSB LSB R R R R R R R/W R/W Reserved V1P8U_ SEL V1P8U_EN V1P8U_EN 0 1 V1P8U off V1P8U on V1P8U_SEL 0 1 V1P8U controlled by SLP_S4_B according to sequencing V1P8U controlled by V1P8U_CTRL.V1P8U_EN bit Regardless of V1P8U_EN and V1P8U_SEL, V1P8U_EN_B is high when SLP_S4_B is asserted, means low |
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