UCS1002-2 datasheet(94/114 Pages) MICROCHIP

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Programmable USB Port Power Controller with Charger Emulation

Datasheet

Revision 1.4 (07-16-13)

SMSC UCS1002

DATASHEET

Note 10.3 If STIMX[2:0] = 000b and no other response was applied to the DMOUT pin, the 15 k

pull-down resistor applied to the DMOUT pin during emulation reset is not removed.

Otherwise, the previous response is left on the DMOUT pin (if applicable) or the 15 k

pull-down resistor is removed.

Note 10.4 If STIMX[2:0] = 000b and no other response was applied to the DPOUT pin, the 15 k

pull-down resistor applied to the DPOUT pin during emulation reset is not removed.

Otherwise, the previous response is left on the DPOUT pin (if applicable) or the 15 k

Ω pull-

down resistor is removed.

Table 10.29 Stimulus Response

SX_RX[3:0] SETTING

STIMULUS RESPONSE

3210

0000

Remove previous response on DPOUT and DMOUT.

0001

Apply voltage on DPOUT (see Note 10.3).

0010

Apply voltage on DMOUT (see Note 10.4).

0011

Apply voltage on DPOUT and DMOUT.

0100

Connect resistor from DPOUT to GND (see Note 10.3).

0101

Do not use.

0110

Connect voltage divider from VBUS to GND with “center” at DPOUT (see

Note 10.3).

0111

Connect resistor from DMOUT to GND (see Note 10.4).

1000

Do not use.

1001

Connect voltage divider from VBUS to GND with “center” at DMOUT (see

Note 10.4).

1010

Connect < 200

Ω resistor from DPOUT to DMOUT.

1011

Do not use.

1100

Connect voltage divider from VBUS to GND with “center” at DPOUT.

Connect voltage divider from VBUS to GND with “center” at DMOUT.

1101

Connect resistor from DPOUT to GND and from DMOUT to GND.

1110

If STIMX[2:0] = 000b, the 15 k

Ω pull-down resistors applied to DPOUT and

DMOUT during emulation reset are not removed. If STIMX[2:0] = 111b, the

15 k

Ω pull-down resistors applied to DPOUT and DMOUT during emulation

reset are removed. For all other STIMX[2:0] settings, whatever was applied is

not changed.

1111

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