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UCS1002-2 数据表(PDF) 76 Page - Microchip Technology |
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UCS1002-2 数据表(HTML) 76 Page - Microchip Technology |
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76 / 114 page  Programmable USB Port Power Controller with Charger Emulation Datasheet Revision 1.4 (07-16-13) 76 SMSC UCS1002 DATASHEET Bit 3 - CUST - Indicates that the portable device successfully performed a handshake with the user- defined Custom charger emulation profile during the DCE Cycle and is charging. Based on the Custom charger emulation profile configuration, the high-speed switch will be either open or closed (see Section 10.13, "Custom Emulation Configuration Registers"). The port power switch current limiting mode is determined by the Custom current limiting behavior settings (see Section 10.14.2, "Custom Current Limiting Behavior Configuration - 51h"). Bit 2 - DCP - Indicates that the portable device accepted the BC1.2 DCP charger emulation profile and is charging. The high-speed switch will be controlled via the HSW_DCE bit (see Section 10.4.5, "High- speed Switch Configuration - 25h"), and the port power switch will use constant current limiting. Bit 1 - CDP - Indicates that the portable device successfully performed a handshake with the BC1.2 CDP charger emulation profile and is charging. The high-speed switch will be closed, and the port power switch will use trip current limiting. Bit 0 - PT - Indicates that the UCS1002 is in the Data Pass-through or BC1.2 SDP Active mode. The high-speed switch will be closed, and the port power switch will use trip current limiting. APPLICATION NOTE: When the UCS1002 is configured as a Data Pass-through and a Removal event and then an Attach event occur without changing the Active mode, the PT bit will not be set again even though the UCS1002 is still operating as a Data Pass-through as configured. Toggling the M1 control will re-enable the PT status bit. 10.3.5 Profile Status 2 - 13h These bits indicate which profile was accepted. These bits are indicators only and will not cause the ALERT# pin or A_DET# pin to change states. These bits are cleared under the following circumstances: the PWR_EN control is disabled, a new Active mode is selected, or a Removal Detection event occurs. Bit 6 - LG7 - Indicates that the portable device successfully performed a handshake with the Legacy 7 charger emulation profile and is charging. The high-speed switch will be controlled via the HSW_DCE bit (see Section 10.4.5, "High-speed Switch Configuration - 25h". The port power switch current limiting mode is determined by the Custom current limiting behavior settings (see Section 10.14.2, "Custom Current Limiting Behavior Configuration - 51h"). Bit 5 - LG6 - Indicates that the portable device successfully performed a handshake with the Legacy 6 charger emulation profile and is charging. The high-speed switch will be controlled via the HSW_DCE bit (see Section 10.4.5, "High-speed Switch Configuration - 25h"). The port power switch current limiting mode is determined by the Custom current limiting behavior settings (see Section 10.14.2, "Custom Current Limiting Behavior Configuration - 51h"). Bit 4 - LG5 - Indicates that the portable device successfully performed a handshake with the Legacy 5 charger emulation profile and is charging. The high-speed switch will be controlled via the HSW_DCE bit (see Section 10.4.5, "High-speed Switch Configuration - 25h"). The port power switch current limiting mode is determined by the Custom current limiting behavior settings (see Section 10.14.2, "Custom Current Limiting Behavior Configuration - 51h"). Bit 3 - LG4 - Indicates that the portable device successfully performed a handshake with the Legacy 4 charger emulation profile and is charging. The high-speed switch will be controlled via the HSW_DCE bit (see Section 10.4.5, "High-speed Switch Configuration - 25h"). The port power switch current limiting mode is determined by the Custom current limiting behavior settings (see Section 10.14.2, "Custom Current Limiting Behavior Configuration - 51h"). Bit 2 - LG3 - Indicates that the portable device successfully performed a handshake with the Legacy 3 charger emulation profile and is charging. The high-speed switch will be controlled via the HSW_DCE bit (see Section 10.4.5, "High-speed Switch Configuration - 25h"). The port power switch current limiting mode is determined by the Custom current limiting behavior settings (see Section 10.14.2, "Custom Current Limiting Behavior Configuration - 51h"). |
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