UCS1002-3 datasheet(86/114 Pages) MICROCHIP

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UCS1002-3

DS20006852A-page 86

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bit 3-0

CS_S1_R1[3:0]: Defines the stimulus response as shown below.

0000 =

Remove previous response on DPOUT and DMOUT.

0001 =

Apply voltage on DPOUT (Note 1).

0010 =

Apply voltage on DMOUT (Note 2).

0011 =

Apply voltage on DPOUT and DMOUT.

0100 =

Connect resistor from DPOUT to GND (Note 1).

0101 =

Do not use.

0110 =

Connect voltage divider from VBUS to GND with the center tap at DPOUT (Note 1).

0111 =

Connect resistor form DMOUT to GND (Note 2).

1000 =

Do not use.

1001 =

Connect voltage divider from VBUS to GND with the center tap at DMOUT (Note 2).

1010 =

Connect

 200resistor from DPOUT to DMOUT.

1011 =

Do not use.

1100 =

Connect voltage divider from VBUS to GND with the center tap at DPOUT and DMOUT.

1101 =

Connect resistor from DPOUT to GND and DMOUT to GND.

1110 =

If CS_STIM1 = 000, the 15 kpull-down resistors applied to DPOUT and DMOUT during

Emulation Reset are not removed. If CS_STIM1 = 111, the 15 kpull-down resistors applied

to DPOUT and DMOUT during Emulation Reset are removed. For all other CS_STIM1 set-

tings, whatever is applied is not changed.

1111 = Same as 1110 case above.

Note 1: If CS_STIM1[2:0] = 000b and no other response is 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

 pull-down resistor is removed.

2: If CS_STIM1[2:0] = 000b and no other response is 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.

(ADDRESS 43h)

U-x

R/W-0

—

CS_S1_PUPD[1:0]

CS_S1_TH[3:0]

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-6

Unimplemented

bit 5-4

CS_S1_PUPD[1:0]: Determines the magnitude of the pull-down current applied on the DPOUT and

DMOUT pins when the stimulus response is to apply a voltage and the voltage magnitude is set at

pull-down (0000b). The bit decode is given below.

00 = 10 µA

01 = 50 µA

10 = 100 µA

11 = 150 µA

(ADDRESS 42h) (CONTINUED)

UCS1002-3 Datasheet(PDF) 86 Page - Microchip Technology

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