UCS1003-1 datasheet(72/138 Pages) MICROCHIP

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UCS1003-1/2/3

DS20005346B-page 72

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bit 2

LG3:

Legacy 3 Charger Emulation Profile Status bit

Indicates that the portable device successfully performed a handshake with the Legacy 3 charger emula-

tion 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 Register”

). The port power switch Current-Limiting

mode is determined by the Custom Current-Limiting Behavior register settings (see Section 10.14.2

“Custom Current-Limiting Behavior Configuration Register”

= Handshake successful with the Legacy 3 charger emulation profile and charging

= Not charging with Legacy 3 charger emulation profile

bit 1

LG2:

Legacy 2 Charger Emulation Profile Status bit

Indicates that the portable device successfully performed a handshake with the Legacy 2 charger emula-

tion 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 Register”

). The port power switch Current-Limiting

mode is determined by the Custom Current-Limiting Behavior register settings (see Section 10.14.2

“Custom Current-Limiting Behavior Configuration Register”

= Handshake successful with the Legacy 2 charger emulation profile and charging

= Not charging with Legacy 2 charger emulation profile

bit 0

LG1:

Legacy 1 Charger Emulation Profile Status bit

Indicates that the portable device successfully performed a handshake with the Legacy 1 charger emula-

tion 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 Register”

). The port power switch Current-Limiting

mode is determined by the Custom Current-Limiting Behavior register settings (see Section 10.14.2

“Custom Current-Limiting Behavior Configuration Register”

= Handshake successful with the Legacy 1 charger emulation profile and charging

= Not charging with Legacy 1 charger emulation profile

PROFILE STATUS 2 REGISTER (ADDRESS 13h) (CONTINUED)

UCS1003-1 Datasheet(PDF) 72 Page - Microchip Technology