UCS1002-3 datasheet(85/114 Pages) MICROCHIP

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DS20006852A-page 85

UCS1002-3

(ADDRESS 42h)

R/W-0

CS_S1_R1MAG[3:0]

CS_S1_R1[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 7-4

CS_S1_R1MAG[3:0]: Determines the magnitude of the response to the stimulus. The bit decode changes

meaning based on which response is selected. Data written to any field that is identified as ‘Do not use’ is

not accepted. The data is not updated and the settings remain set at the previous value.

•For CS_S1_R1 settings 0000-0011, the response is a voltage applied on the DPOUT/DMOUT

pins. The CS_S1_R1MAG bits specify the voltage relative to ground:

•For CS_S1_R1 settings 0100, 0111, 1101-1111, the response is a resistor connected on the

DPOUT/DMOUT to GND or VBUS. The CS_S1_R1MAG bits specify the resistor value:

•For CS_S1_R1 settings 0110, 1001, 1100, the response is a voltage divider applied from VBUS

to GND with the center tap at DPOUT/DMOUT. The CS_S1_R1MAG bits specify the minimum

resistance of the voltage divider (Sum of R1 + R2):

0000 = Pull Down

0110 =600 mV

1100 =1800 mV

0001 = 400 mV

0111 =700 mV

1101 =2000 mV

0010 = 400 mV

1000 =800 mV

1110 =2200 mV

0011 = 400 mV

1001 =900 mV

1111 = Do not use

0100 = 400 mV

1010 = 1400 mV

0101 = 500 mV

1011 = 1600 mV

0000 =1.8 k

0110 =40 k

1100 =100 k

0001 =10 k

0111 =43 k

1101 =120 k

0010 =15 k

1000 =50 k

1110 =150 k

0011 =20 k

1001 =60 k

1111 = Do not use

0100 =25 k

1010 =75 k

0101 =30 k

1011 =80 k

0000 =93 k

0110 =200 k

1100 =200 k

0001 = 100 k

0111 =200 k

1101 =200 k

0010 = 125 k

1000 =93 k

1110 =200 k

0011 = 150 k

1001 =100 k

1111 = Do not use

0100 = 200 k

1010 =125 k

0101 = 200 k

1011 =150 k

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