UCS1002-2 datasheet(89/114 Pages) MICROCHIP

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Programmable USB Port Power Controller with Charger Emulation

Datasheet

SMSC UCS1002

Revision 1.4 (07-16-13)

DATASHEET

10.11.2

Legacy Emulation Timeout Config 1 - 23h

The contents of this register are retained in Sleep.

Bits 7 - 6 - LG1_EM_TIMEOUT[1:0] - Defines the tEM_TIMEOUT setting, as shown in Table 10.24, that

is applied when the Legacy 1 charger emulation profile is used during the DCE Cycle. Default is 6.4 s

(10b).

Bits 5 - 4 - LG2_EM_TIMEOUT[1:0] - Defines the tEM_TIMEOUT setting, as shown in Table 10.24, that

is applied when the Legacy 2 charger emulation profile is used during the DCE Cycle. Default is 12.8 s

(11b).

Bits 3 - 2 - LG3_EM_TIMEOUT[1:0] - Defines the tEM_TIMEOUT setting, as shown in Table 10.24, that

is applied when the Legacy 3 charger emulation profile is used during the DCE Cycle. Default is 0.8 s

(00b).

Bits 1 - 0 - LG4_EM_TIMEOUT[1:0] - Defines the tEM_TIMEOUT setting, as shown in Table 10.24, that

is applied when the Legacy 4 charger emulation profile is used during the DCE Cycle. Default is 0.8 s

(00b).

10.11.3

Legacy Emulation Timeout Config 2 - 24h

The contents of this register are retained in Sleep.

Bits 5 - 4 - LG5_EM_TIMEOUT[1:0] - Defines the tEM_TIMEOUT setting, as shown in Table 10.24, that

is applied when the Legacy 5 charger emulation profile is used during the DCE Cycle. Default is 0.8 s

(00b).

Bits 3 - 2 - LG6_EM_TIMEOUT[1:0] - Defines the tEM_TIMEOUT setting, as shown in Table 10.24, that

is applied when the Legacy 6 charger emulation profile is used during the DCE Cycle. Default is 1.6 s

(01b).

Bits 1 - 0 - LG7_EM_TIMEOUT[1:0] - Defines the tEM_TIMEOUT setting, as shown in Table 10.24, that

is applied when the Legacy 7 charger emulation profile is used during the DCE Cycle. Default is 0.8 s

(00b).

Table 10.24 X_EM_TIMEOUT Bit Decode

X_EM_TIMEOUT[1:0]

TEM_TIMEOUT APPLIED

0.8 s

1.6 s

6.4 s

12.8 s

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