MAX17843 datasheet(101/131 Pages) MAXIM

101 / 131 page

BIT

POR

NAME

DESCRIPTION

D15

Reserved

Always reads logic-zero.

D14

D13

D12

FA[4:0]

Address of the device connected to the host (first address). If the host uses a first address

other than 0x00 in the HELLOALL command, then the host must write that first address

to all devices in the daisy-chain with a WRITEALL command. READALL commands

require that FA[4:0] and DA[4:0] be correct in order for the data-check and PEC features to

function as intended.

D11

D10

Reserved

Always reads logic-zero.

DA[4:0]

Device address written by the HELLOALL command as it propagates up the daisy-chain

and is automatically incremented for each device. The host must choose a first address

so that the last device address does not exceed the maximum address of 0x1F during the

HELLOALL command. Writing has no effect except with a HELLOALL command while

ADDRUNLOCK = 1.

BIT

POR

NAME

DESCRIPTION

D15

ALRTRST

Indicates a power-on reset (POR) event occurred. Clear after power-on and after a

successful HELLOALL to detect future resets. Writing to a logic-one has no effect.

D14

ALRTOV

Bit-wise logical OR of ALRTOVCELL[15:0]. Read-only.

D13

ALRTUV

Bit-wise logical OR of ALRTUVCELL[15:0]. Read-only.

D12

ALRTSHDNL

Indicates VSHDNL < VIL. Read during shutdown diagnostic when VAA > VPORFALL.

Cleared by writing to logic-zero or POR. Writing to a logic-one has no effect.

D11

ALRTSHDNLRT

Indicates VSHDNL < VIL. Read during shutdown diagnostic when VAA > VPORFALL.

Read-only.

D10

ALRTMSMTCH

Indicates VMAX - VMIN > VMSMTCH . Cleared at next acquisition if the condition is false.

Read-only.

ALRTTCOLD

Logical OR of ALRTOVAIN0 and ALRTOVAIN1. Read-only.

ALRTTHOT

Logical OR of ALRTUVAIN0 and ALRTUVAIN1. Read-only.

ALRTPEC

Indicates a received character contained a PEC error. Cleared only by writing to logic-zero.

Writing to a logic-one has no effect.

Reserved

Always reads logic-zero.

ALRTMAN

Indicates that a character received by the lower UART contained a Manchester error.

Cleared only by writing to logic-zero. Writing to a logic-one has no effect.

Write ignored, Read back ‘0’.

ALRTPAR

Indicates that a character received by the lower UART contained a parity error.

Cleared only by writing to logic-zero. Writing to logic-one has no effect.

ALRTFMEA2

Bit-wise logical OR of FMEA2 [15:0]. Read-only.

ALRTFMEA1

Bit-wise logical OR of FMEA1 [15:0]. Read-only.

MAX17843

12-Channel, High-Voltage Smart Sensor

Data-Acquisition Interface

www.maximintegrated.com

Maxim Integrated │ 101

ADDRESS Register (address 0x01)

STATUS Register (address 0x02)

MAX17843 датащи(PDF) 101 Page - Maxim Integrated Products

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