71M6545HT-IGTSLASHF datasheet(49/66 Pages) MAXIM

49 / 66 page

Maxim Integrated │ 49

71M6545T/71M6545HT

Energy Meter ICs

www.maximintegrated.com

Table 13. I/O RAM Locations in Alphabetical Order (continued)

NAME

LOCATION RST WK DIR

DESCRIPTION

EECTRL[7:0]

SFR 9F

0 R/W

Serial EEPROM interface control.

STATUS

BIT

NAME

READ/

WRITE

RESET

STATE

POLARITY

DESCRIPTION

ERROR

Positive

1 when an illegal command is

received.

BUSY

Positive

1 when serial data bus is

busy.

RX_ACK

Positive

1 indicates that the

EEPROM sent an ACK bit.

EQU[2:0]

2106[7:5]

0 R/W

Specifiesthepowerequation.

EQU[2:0]

DESCRIPTION

ELEMENT 0

ELEMENT

RECOMMENDED

MUX SEQUENCE

2 element 4W

3f Delta

VA(IA-IB)/2

VC x IC

IA VA IB VB IC VC

2 element 4W

3f Wye

VA(IA-IB)/2

VB(IC-IB)/2

IA VA IB VB IC VC

2 element 4W

3f Wye

VA x IA

VB x IB

VC x IC

IA VA IB VB IC VC

Note: The available CE codes implement only equation 5. Contact your Maxim representative to obtain CE codes for

equation 3 or 4.

EX_XFER

EX_RTC1S

EX_RTC1M

EX_TCTEMP

EX_RTCT

EX_SPI

EX_EEX

EX_XPULSE

EX_YPULSE

EX_WPULSE

EX_VPULSE

2700[0]

2700[1]

2700[2]

2700[3]

2700[4]

2701[7]

2700[7]

2700[6]

2700[5]

2701[6]

2701[5]

0 R/W

Interrupt enable bits. These bits enable the XFER_BUSY, the RTC_1SEC, etc. The bits are set by hardware and

cannot be set by writing a 1. The bits are reset by writing 0. Note that if one of these interrupts is to enabled, its

corresponding 8051 EX enable bit must also be set.

EW_DIO4

28B3[2]

– R/W Connects DIO4 to the WAKE logic and permits DIO4 rising to wake the part. This bit has no effect unless DIO4 is

configuredasadigitalinput.

EW_DIO55

28B3[0]

– R/W Connects DIO55 to the WAKE logic and permits DIO55 rising to wake the part. This bit has no effect unless DIO55

isconfiguredasadigitalinput.

EW_PB

28B3[3]

– R/W ConnectsPBtotheWAKElogicandpermitsPBrisingtowakethepart.PBisalwaysconfiguredasaninput.

EW_RX

28B3[4]

– R/W Connects RX to the WAKE logic and permits RX rising to wake the part. See the WAKE description on page 84 for

de-bounce issues.

EW_TEMP

28B3[5]

– R/W Connects the temperature range check hardware to the WAKE logic and permits the range check hardware to wake

the part.

71M6545HT-IGT/F Datasheet(PDF) 49 Page - Maxim Integrated Products

71M6545HT-IGT/F Datasheet(HTML) 49 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66

Datasheet Download

Link URL