MCP3910 datasheet(71/90 Pages) MICROCHIP

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 2012-2020 Microchip Technology Inc.

DS20005116D-page 71

MCP3910

9.5

STATUSCOM Register – Status

and Communication Register

Name

Bits

Address

Cof

STATUSCOM

0x0C

R/W

STATUSCOM: STATUS AND COMMUNICATION REGISTER

R/W-1

R/W-0

R/W-1

R/W-0

R/W-1

R/W-0

R/W-1

READ[1]

READ[0]

WRITE

DR_HIZ

DR_LINK

WIDTH_ CRC WIDTH_ DATA[1] WIDTH_ DATA[0]

bit 23

bit 16

R/W-0

r-0

R/W-0

U-0

EN_CRCCOM

EN_INT

—

—EN_MDAT

—

bit 15

bit 8

U-0

R-1

—

DRSTATUS[1]

DRSTATUS[0]

bit 7

bit 0

Legend:

r = Reserved bit

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 23-22

READ[1:0]:

Address Counter Increment Setting for Read Communication bits

= Address counter auto-increments, loops on the entire register map

= Address counter auto-increments, loops on register TYPES (default)

= Address counter auto-increments, loops on register GROUPS

= Address not incremented, continually reads the same single register address

bit 21

WRITE:

Address Counter Increment Setting for Write Communication bit

= Address counter auto-increments and loops on writable part of the register map (default)

= Address not incremented, continually writes to the same single register address

bit 20

DR_HIZ:

Data Ready Pin Inactive State Control bit

= The DR pin state is a logic high when data are NOT ready

= The DR pin state is high-impedance when data are NOT ready (default)

bit 19

DR_LINK:

Data Ready Link Control bit

= Data ready link enabled; only one pulse is generated on the DR pin corresponding to the data

ready pulse of the most lagging ADC

= Data ready link disabled; each ADC produces its own data ready pulse on the DR pin

bit 18

WIDTH_CRC:

Format for CRC-16 on Communications bit

= 32-bit (CRC-16 code is followed by sixteen zeros); this coding is compatible with CRC implementation

in most 32-bit MCUs (including PIC32 MCUs)

= 16-bit (default)

bit 17-16

WIDTH_DATA[1:0]:

ADC Data Format Settings for All ADCs bits

(see Section 5.5 “ADC Output Coding”)

= 32-bit with sign extension

= 32-bit with zeros padding

= 24-bit (default)

= 16-bit (with rounding)

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