PAC1932SLASH3SLASH4 datasheet(43/62 Pages) MICROCHIP

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DS20005850C-page 43

PAC1932/3/4

NEG_PWR (ADDRESS 1DH)

RW-0

CH1_BIDI

CH2_BIDI

CH3_BIDI

CH4 BIDI

CH1_BIDV

CH2_BIDV

CH3_BIDV

CH4_BIDV

bit 7

bit 0

Legend:

R = Readable bit

W = Writeable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-4

CHn_BIDI<7:4>

: these control bits allow the user to enable bidirectional current measurements for any

channel, which will result in the VSENSE voltage measurement data being in 16-bit two's complement

(signed) format. If the channel is enabled for negative current measurements, the full scale range for

VSENSE is -100 mV to +100 mV.

If these bits are enabled for any channel, that channel’s power numbers are also capable of reporting

bidirectional numbers in two’s complement format.

bit 3-0

CHn_BIDI<3:0>

: these control bits allow the user to enable bidirectional/bipolar voltage measurements

for any channel, which will result in the VBUS voltage measurement data being in 16 bit two’s

complement format.

If the channel is enabled for negative voltage measurements, the full scale range for VBUS is +32V to

-32V. Note that this range is the digital FSR, the VBUS input will not give accurate measurements if taken

more than 200 mV below ground.

If these bits are enabled for any channel, that channel’s power numbers are also capable of reporting

bidirectional numbers in two’s complement format.

bit 7

= Channel 1 VSENSE ADC converts 0 to +100 mV range with 16-bit straight binary output

= Channel 1 VSENSE ADC converts -100 mV to +100 mV range with 16-bit two’s complement output

bit 6

= Channel 2 VSENSE ADC converts 0 to +100 mV range with 16 bit straight binary output

= Channel 2 VSENSE ADC converts -100 mV to +100 mV range with 16 bit two’s complement output

bit 5

= Channel 3 VSENSE ADC converts 0 to +100 mV range with 16-bit straight binary output

= Channel 3 VSENSE ADC converts -100 mV to +100 mV range with 16-bit two’s complement output

bit 4

= Channel 4 VSENSE ADC converts 0 to +100 mV range with 16-bit straight binary output

= Channel 4 VSENSE ADC converts -100 mV to +100 mV range with 16 bit two’s complement output

bit 3

= Channel 1 VBUS ADC converts 0 to +32V range with 16-bit straight binary output

= Channel 1 VBUS ADC converts -32V to +32 range with 16-bit two’s complement output

bit 2

= Channel 2 VBUS ADC converts 0 to +32V range with 16-bit straight binary output

= Channel 2 VBUS ADC converts -32V to +32V range with 16-bit two’s complement output

bit 1

= Channel 3 VBUS ADC converts 0 to +32V range with 16-bit straight binary output

= Channel 3 VBUS ADC converts -32V to +32V range with 16-bit two’s complement output

bit 0

= Channel 4 VBUS ADC converts 0 to +32V range with 16-bit straight binary output

= Channel 4 VBUS ADC converts -32V to +32V range with 16-bit two’s complement output

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