PAC1941T-1ESLASH4MX. datasheet(45/96 Pages) MICROCHIP

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DS20006543A-page 45

PAC194X

CTRL (ADDRESS 01H) REGISTER

R/W-0

R/W-1

SAMPLE_MODE[3:0]

GPIO_ALERT2[1:0]

SLOW_ALERT1[1:0]

bit 15

bit 8

R/W-0

U-0

CHANNEL_N_OFF[3:0]

—

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 15-12

SAMPLE_MODE[3:0]: These bits select one of the sampling modes listed below. These modes are

exclusive – that is, only one mode can be set at any given time. One of the sampling modes is Sleep,

when no sampling occurs.

0b0000 = 1024 SPS adaptive accumulation (default), see Section 5.13.1, "Adaptive Accumulator"

0b0001 = 256 SPS adaptive accumulation

0b0010 = 64 SPS adaptive accumulation

0b0011 = 8 SPS adaptive accumulation

0b0100 = 1024 SPS, see Section 5.15, "Conversion Cycle Controls"

0b0101 = 256 SPS

0b0110 = 64 SPS

0b0111 = 8 SPS

0b1000 = Single-Shot mode, see Section 5.15.4, "Single-Shot Mode"

0b1001 = Single-Shot 8X

0b1010 = Fast mode, see Section 5.15.3, "Fast Mode"

0b1011 = Burst mode, see Section 5.15.2, "Burst Mode"

0b1100 = Reserved

0b1101 = Reserved

0b1110 = Reserved

0b1111 = Sleep, see Section 5.5, "Sleep State"

bit 11-10

GPIO_ALERT2[1:0]: Select the signals for the GPIO/ALERT2 pin. If the pin is configured as a GPIO

pin, the R/W data for the pin are stored in Register 7-10.

00 = ALERT functions as an ALERT pin

01 = GPIO digital input. Read the digital value input to this pin from Register 7-10. Default for this pin.

10 = GPIO digital output. Write the digital value to be output from this pin to Register 7-10.

11 = The pin functions as the SLOW pin, taking the pin high overrides the programmed sample rate

and yields a sampling rate of 8 SPS. Only one pin can be selected to set the SLOW functionality.

If both GPIO/ALERT2 and SLOW/ALERT1 pins are set to SLOW, the SLOW/ALERT1 pin will

control the SLOW functionality.

bit 9-8

SLOW_ALERT1[1:0]: Select the signals for SLOW/ALERT1 pin. If the pin is configured as a GPIO

pin, the R/W data for the pin are stored in Register 7-10.

00 = ALERT functions as an ALERT1 pin

01 = GPIO digital input. Read the digital value input to this pin from Register 7-10.

10 = GPIO digital output. Write the digital value to be output from this pin to Register 7-10.

11 = SLOW functions as the SLOW pin, taking the pin high overrides the programmed sample rate

and yields a sampling rate of 8 SPS (default for this pin).

PAC1941T-1E/4MX. Datasheet(PDF) 45 Page - Microchip Technology

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