71M6541DSLASHFSLASHG datasheet(112/166 Pages) MAXIM

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71M6541D/F/G and 71M6542F/G Data Sheet

112

Rev 5

Name

Location

Rst Wk

Dir

Description

CHOPR[1:0]

2709[7:6]

00 00 R/W

The CHOP settings for the remote sensor.

00 = Auto chop. Change every MUX frame.

01 = Positive

10 = Negative

11 = Auto chop. Same as 00.

DIFFA_E

210C[4]

R/W Enables differential configuration for the IA current input (IAP-IAN).

DIFFB_E

210C[5]

R/W Enables differential configuration for the IB current input (IBP-IBN).

DIO_R2[2:0]

DIO_R3[2:0]

DIO_R4[2:0]

DIO_R5[2:0]

DIO_R6[2:0]

DIO_R7[2:0]

DIO_R8[2:0]

DIO_R9[2:0]

DIO_R10[2:0]

DIO_R11[2:0]

DIO_RPB[2:0]

2455[2:0]

2455[6:4]

2454[2:0]

2454[6:4]

2453[2:0]

2453[6:4]

2452[2:0]

2452[6:4]

2451[2:0]

2451[6:4]

2450[2:0]

–

R/W

Connects PB and dedicated I/O pins DIO2 through DIO11 to internal resources.

If more than one input is connected to the same resource, the MULTIPLE

column below specifies how they are combined.

DIO_Rx

Resource

MULTIPLE

NONE

–

Reserved

T0 (Timer0 clock or gate)

T1 (Timer1 clock or gate)

IO interrupt (int0)

IO interrupt (int1)

DIO_DIR[15:12]

DIO_DIR[11:8]

DIO_DIR[7:4]

DIO_DIR[3:0]

SFR B0[7:4]

SFR A0[7:4]

SFR 90[7:4]

SFR 80[7:4]

R/W

Programs the direction of the first 16 DIO pins. 1 indicates output. Ignored if

the pin is not configured as I/O. See DIO_PV and DIO_PW for special option

for the SEGDIO0 and SEGDIO1 outputs. See DIO_EEX for special option for

SEGDIO2 and SEGDIO3. Note that the direction of DIO pins above 15 is set by

SEGDIOx[1]. See PORT_E to avoid power-up spikes.

DIO[15:12]

DIO[11:8]

DIO[7:4]

DIO[3:0]

SFR B0[3:0]

SFR A0[3:0] SFR 90[3:0]

SFR 80[3:0]

R/W

The value on the first 16 DIO pins. Pins configured as LCD reads zero.

When written, changes data on pins configured as outputs. Pins configured

as LCD or input ignore writes. Note that the data for DIO pins above 15 is

set by SEGDIOx[0].

DIO_EEX[1:0]

2456[7:6]

–

R/W

When set, converts pins SEGDIO3/SEGDIO2 to interface with external

EEPROM. SEGDIO2 becomes SDCK and SEGDIO3 becomes bi-directional

SDATA, but only if LCD_MAP[2] and LCD_MAP[3] are cleared.

DIO_EEX[1:0]

Function

Disable EEPROM interface

2-Wire EEPROM interface

3-Wire EEPROM interface

3-Wire EEPROM interface with separate DO (DIO3)

and DI (DIO8) pins.

71M6541D/F/G Datasheet(PDF) 112 Page - Maxim Integrated Products

71M6541D/F/G Datasheet(HTML) 112 Page - Maxim Integrated Products

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