71M6521DE-IM/F Maxim Integrated Products, 71M6521DE-IM/F Datasheet - Page 73
71M6521DE-IM/F
Manufacturer Part Number
71M6521DE-IM/F
Description
IC ENERGY METER 16K FLASH 68-QFN
Manufacturer
Maxim Integrated Products
Specifications of 71M6521DE-IM/F
Mounting Style
SMD/SMT
Package / Case
QFN-68
Program Memory Size
16 KB
Program Memory Type
Flash
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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71M6521DE/DH/FE Data Sheet
FIRMWARE INTERFACE
‘Not Used’ bits are grayed out, contain no memory and are read by the MPU as zero. RESERVED bits may be in use
and should not be changed. This table lists only the SFR registers that are not generic 8051 SFR registers.
Rev 2
LCD_BLNK 205A
VERSION 2006
CONFIG0 2004 VREF_CAL
CONFIG1 2005 Reserved
CONFIG2 2007
Configuration:
Digital I/O:
Real Time Clock:
LCD Display Interface:
COMP0 2003 Not Used
LCD19
LCD24
LCD38
WAKE
TMUX
LCDX
LCDY
Name
RTC0
RTC1
RTC2
RTC3
RTC4
RTC5
RTC6
RTC7
LCDZ
LCD0
DIO0
DIO1
DIO2
DIO3
DIO4
DIO5
DIO6
CE0
CE1
CE2
CE3
WE
…
…
201C Not Used
201A Not Used
201B
201F
20AA Not Used
200C Not Used
200D Not Used
2015
2016
2017
2018
2019
2020 Not Used
2021 Not Used
2022 Not Used
2030
2043
2048
2056
Addr
2000
2001
2002
20A8 Not Used
20A9 WAKE_ARM
2008
2009
200A Not Used
200B Not Used
200E Not Used
…
…
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Bit 7
PRE_SAMPS[1:0]
MUX_DIV[1:0]
OPT_TXE[1:0]
DIO_EEX[1:0]
Not Used
Reserved
I/O RAM MAP – In Numerical Order
EQU[2:0]
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
PLS_INV
PLL_OK
Not Used
Not Used
LCD_BLKMAP19[3:0]
LCD_Y
SLEEP
BME
Bit 6
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
DIO_R11[2:0]
DIO_R1[2:0]
DIO_R5[2:0]
DIO_R7[2:0]
DIO_R9[2:0]
OPT_RXDIS OPT_RXINV
LCD_ONLY
Reserved
Not Used
Not Used
ECK_DIS
Not Used
Not Used
Not Used
Not Used
Not Used
Reserved
Not Used
Not Used
LCD_E
EX_PLL
Bit 5
CKOUT_E[1:0]
CHOP_E[1:0]
EX_FWCOL
Not Used
Not Used
Not Used
FIR_LEN
Not Used
CE_E
Write enable for RTC
Bit 4
VERSION[7:0]
Reserved
LCD_MODE[2:0]
WAKE_RES
VREF_DIS
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
DIO_PW
RTM_E
ADC_E
Bit 3
SUM_CYCLES[5:0]
Reserved
LCD_NUM[4:0]
CE_LCTN[4:0]
Reserved
MUX_ALT
TMUX[4:0]
Not Used
Reserved
WD_OVF
LCD_BLKMAP18[3:0]
DIO_PV
Bit 2
LCD_SEG19[3:0]
LCD_SEG24[3:0]
LCD_SEG38[3:0]
LCD_SEG0[3:0]
Reserved
RTC_SEC[5:0]
RTC_MIN[5:0]
RTC_HR[4:0]
RTC_DAY[2:0]
RTC_DATE[2:0]
RTC_MO[3:0]
RTC_YR[7:0]
WAKE_PRD[2:0]
…
…
MPU_DIV[2:0]
DIO_R10[2:0]
RTC_DEC_SEC
OPT_TXMOD
DI_RPB[2:0]
DIO_R2[2:0]
DIO_R4[2:0]
DIO_R6[2:0]
DIO_R8[2:0]
Reserved COMP_STAT[0]
FLSH66Z
EX_RTC
Bit 1
LCD_CLK[1:0]
OPT_FDC[1:0]
OPT_TXINV
Page: 73 of 107
RTC_INC_SEC
Reserved
EX_XFR
Bit 0
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