71m6521be Maxim Integrated Products, Inc., 71m6521be Datasheet - Page 68

• Manufacturer Part Number: 71m6521be
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

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.
Page: 68 of 97
VERSION 2006
LCD_BLNK 205A
CONFIG0 2004 VREF_CAL
CONFIG1 2005 Reserved
CONFIG2 2007
Configuration:
Digital I/O:
LCD Display Interface:
COMP0 2003 Not Used
LCD19
LCD24
LCD38
WAKE
TMUX
LCDX
LCDY
Name
LCDZ
LCD0
DIO0
DIO1
DIO2
DIO3
DIO4
DIO5
DIO6
CE0
CE1
CE2
CE3
WE
…
…
* Must be set to 0 (CE2 bit 1)
201F
20AA Not Used
200C Not Used
200D Not Used
2020 Not Used
2021 Not Used
2022 Not Used
2030
2043
2048
2056
Addr
20A8
20A9 WAKE_ARM
2008
2009
200A
200B
200E
2000
2001
2002
…
…
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
EQU[2:0]
PLS_INV
LCD_BLKMAP19[3:0]
PLL_OK
Not Used
Not Used
LCD_Y
SLEEP
BME
Bit 6
I/O RAM MAP – In Numerical Order
© 2005-2008 TERIDIAN Semiconductor Corporation
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
Reserved
Not Used
Not Used
LCD_E
EX_PLL
Bit 5
CKOUT_E[1:0]
CHOP_E[1:0]
EX_FWCOL
FIR_LEN
Not Used
CE_E
Bit 4
VERSION[7:0]
Reserved
Reserved
LCD_MODE[2:0]
WAKE_RES
VREF_DIS
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]
MUX_ALT
Reserved
TMUX[4:0]
WD_OVF
Reserved
DIO_PV
LCD_BLKMAP18[3:0]
Energy Meter IC
Bit 2
LCD_SEG19[3:0]
LCD_SEG24[3:0]
LCD_SEG38[3:0]
LCD_SEG0[3:0]
Reserved
WAKE_PRD[2:0]
…
…
MPU_DIV[2:0]
DIO_R10[2:0]
OPT_TXMOD
71M6521BE
DI_RPB[2:0]
DIO_R2[2:0]
DIO_R4[2:0]
DIO_R6[2:0]
DIO_R8[2:0]
Reserved*
Reserved COMP_STAT[0]
FLSH66Z
DATA SHEET
Bit 1
LCD_CLK[1:0]
OPT_FDC[1:0]
JANUARY 2008
OPT_TXINV
Reserved
EX_XFR
Bit 0
V1.0