UCS1002-2 datasheet(100/114 Pages) MICROCHIP

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Programmable USB Port Power Controller with Charger Emulation

Datasheet

Revision 1.4 (07-16-13)

100

SMSC UCS1002

DATASHEET

The Custom Emulation Configuration registers store the values used by the Custom charger emulation

circuitry. The Custom charger emulation profile is set up as three stimuli and the respective responses.

See application note Fundamentals of Custom Charger Emulation”.

10.13.1

Custom Emulation Configuration - 40h

The contents of this register are retained in Sleep.

Bit 5 - CS1_TIMEOUT_DIS - Disables the Emulation Timeout timer when the Custom charger

emulation profile is applied during the DCE Cycle. If the EM_TIMEOUT_DIS is set, this bit will have

no effect (see Section 10.4.2, "Emulation Configuration - 16h").

APPLICATION NOTE: If the CS1_TIMEOUT_DIS bit is set and the Custom charger emulation profile was accepted

during the DCE cycle, a removal is not detected. To avoid this issue, re-enable the emulation

timeout after applying any test profiles and charging with the 'final' profile.



‘0’ (default) - The Emulation Timeout timer is enabled when the Custom charger emulation profile

is applied during the DCE Cycle and the EM_TIMEOUT_DIS bit is not set.



‘1’ - The Emulation Timeout timer is disabled when the Custom charger emulation profile is applied

during the DCE Cycle. When the Custom charger emulation profile is being applied, the UCS1002

will be constantly monitoring the IBUS current. When the IBUS current is greater than IBUS_CHG,

46h

R/W

Custom

Emulation

Stimulus 2 -

Config 2

CS1_S2_R2MAG[3:0]

CS1_S2_R2[3:0]

00h

47h

R/W

Custom

Emulation

Stimulus 2 -

Config 3

CS1_S2_PUP

D[1:0]

CS1_S2_TH[3:0]

00h

48h

R/W

Custom

Emulation

Stimulus 2 -

Config 4

CS1_S2_RATIO[2:0]

00h

49h

R/W

Custom

Emulation

Stimulus 3 -

Config 1

CS1_S3

_TD_

TYPE

CS1_S3_TD[2:0]

CS1_STIM3[2:0]

00h

4Ah

R/W

Custom

Emulation

Stimulus 3 -

Config 2

CS1_S3_R3MAG[3:0]

CS1_S3_R3[3:0]

00h

4Bh

R/W

Custom

Emulation

Stimulus 3 -

Config 3

CS1_S3_PUP

D[1:0]

CS1_S3_TH[3:0]

00h

4Ch

R/W

Custom

Emulation

Stimulus 3 -

Config 4

CS1_S3_RATIO[2:0]

00h

Table 10.37 Custom Emulation Configuration Registers (continued)

ADDR

R/W

DEFAULT

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