71M6541DSLASHFSLASHG datasheet(124/166 Pages) MAXIM

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

124

Rev 5

Name

Location

Rst Wk

Dir

Description

TBYTE_BUSY

28A0[3]

Indicates that hardware is still writing the 0x28A0 byte. Additional writes to

this byte will be locked out while it is one. Write duration could be as long as

6ms.

TEMP_PER[2:0]

28A0[2:0]

–

R/W

Sets the period between temperature measurements. Automatic measurements

can be enabled in any mode (MSN, BRN, LCD, or SLP). TEMP_PER = 0

disables automatic temperature updates, in which case TEMP_START may be

used by the MPU to initiate a one-shot temperature measurement.

TEMP_PER

Time (seconds)

No temperature updates

1-6

(3+TEMP_PER)

Continuous updates

TEMP_PWR

28A0[6]

–

R/W

Selects the power source for the temp sensor:

1 = V3P3D, 0 = VBAT_RTC. This bit is ignored in SLP and LCD modes,

where the temp sensor is always powered by VBAT_RTC.

TEMP_START

28B4[6]

R/W

When TEMP_PER = 0 automatic temperature measurements are disabled,

and TEMP_START may be set by the MPU to initiate a one-shot temperature

measurement. TEMP_START is ignored in SLP and LCD modes. Hardware

clears TEMP_START when the temperature measurement is complete.

TMUX[5:0]

2502[5:0]

–

R/W Selects one of 32 signals for TMUXOUT. See 2.5.12 for details.

TMUX2[4:0]

2503[4:0]

–

R/W Selects one of 32 signals for TMUX2OUT. See 2.5.12 for details.

TMUXRA[2:0]

270A[2:0]

000000 R/W The TMUX setting for the remote isolated sensor (71M6x01).

VERSION[7:0]

2706[7:0]

–

The silicon version index. This word may be read by firmware to determine

the silicon version.

VERSION[7:0]

Silicon Version

0001 0011

0010 0010

B01

B02

VREF_CAL

2704[7]

R/W

Brings the ADC reference voltage out to the VREF pin. This feature is disabled

when VREF_DIS=1.

VREF_DIS

2704[6]

R/W Disables the internal ADC voltage reference.

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