71M6521DE Datasheet, PDF (73/107 Pages) Teridian Semiconductor Corporation – Energy Meter IC

71M6521DE/DH/FE Data Sheet
FIRMWARE INTERFACE
I/O RAM MAP – In Numerical Order
‘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.
Name Addr Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Configuration:
CE0 2000
EQU[2:0]
CE_E
Reserved
CE1 2001 PRE_SAMPS[1:0]
SUM_CYCLES[5:0]
CE2 2002
MUX_DIV[1:0]
CHOP_E[1:0]
RTM_E WD_OVF EX_RTC EX_XFR
COMP0 2003 Not Used PLL_OK Not Used
Reserved
Reserved Reserved COMP_STAT[0]
CONFIG0 2004 VREF_CAL PLS_INV
CKOUT_E[1:0]
VREF_DIS
MPU_DIV[2:0]
CONFIG1 2005 Reserved Reserved ECK_DIS FIR_LEN ADC_E MUX_ALT FLSH66Z Reserved
VERSION 2006
VERSION[7:0]
CONFIG2 2007
OPT_TXE[1:0]
EX_PLL EX_FWCOL
Reserved
OPT_FDC[1:0]
CE3 20A8 Not Used Not Used Not Used
CE_LCTN[4:0]
WAKE 20A9 WAKE_ARM SLEEP LCD_ONLY Not Used WAKE_RES
WAKE_PRD[2:0]
TMUX 20AA Not Used Not Used Not Used
TMUX[4:0]
Digital I/O:
DIO0 2008
DIO_EEX[1:0]
OPT_RXDIS OPT_RXINV DIO_PW DIO_PV OPT_TXMOD OPT_TXINV
DIO1 2009 Not Used
DIO_R1[2:0]
Not Used
DI_RPB[2:0]
DIO2 200A Not Used
Reserved
Not Used
DIO_R2[2:0]
DIO3 200B Not Used
DIO_R5[2:0]
Not Used
DIO_R4[2:0]
DIO4 200C Not Used
DIO_R7[2:0]
Not Used
DIO_R6[2:0]
DIO5 200D Not Used
DIO_R9[2:0]
Not Used
DIO_R8[2:0]
DIO6 200E Not Used
DIO_R11[2:0]
Not Used
DIO_R10[2:0]
Real Time Clock:
RTC0 2015 Not Used Not Used
RTC_SEC[5:0]
RTC1 2016 Not Used Not Used
RTC_MIN[5:0]
RTC2 2017 Not Used Not Used Not Used
RTC_HR[4:0]
RTC3 2018 Not Used Not Used Not Used Not Used Not Used
RTC_DAY[2:0]
RTC4 2019 Not Used Not Used Not Used
RTC_DATE[2:0]
RTC5 201A Not Used Not Used Not Used Not Used
RTC_MO[3:0]
RTC6 201B
RTC_YR[7:0]
RTC7 201C Not Used Not Used Not Used Not Used Not Used Not Used RTC_DEC_SEC RTC_INC_SEC
WE 201F
Write enable for RTC
LCD Display Interface:
LCDX 2020 Not Used BME Reserved
LCD_NUM[4:0]
LCDY 2021 Not Used LCD_Y
LCD_E
LCD_MODE[2:0]
LCD_CLK[1:0]
LCDZ 2022 Not Used Not Used Not Used
Reserved
LCD0 2030
Not Used
LCD_SEG0[3:0]
…
…
Not Used
…
LCD19 2043
Not Used
LCD_SEG19[3:0]
LCD24 2048
Not Used
LCD_SEG24[3:0]
…
…
Not Used
…
LCD38 2056
Not Used
LCD_SEG38[3:0]
LCD_BLNK 205A
LCD_BLKMAP19[3:0]
LCD_BLKMAP18[3:0]
Rev 2
Page: 73 of 107