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41594B Datasheet(PDF) 108 Page - Microchip Technology

Part # 41594B
Description  8-Bit Flash Microcontroller with nanoWatt XLP Technology
PDF  372 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

41594B Datasheet(HTML) 108 Page - Microchip Technology

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PIC12LF1840T48A
DS41594B-page 108
Preliminary
 2011-2012 Microchip Technology Inc.
TABLE 11-3:
SUMMARY OF REGISTERS ASSOCIATED WITH DATA EEPROM
REGISTER 11-6:
EECON2: EEPROM CONTROL 2 REGISTER
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
EEPROM Control Register 2
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
S = Bit can only be set
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-0
Data EEPROM Unlock Pattern bits
To unlock writes, a 55h must be written first, followed by an AAh, before setting the WR bit of the
EECON1 register. The value written to this register is used to unlock the writes. There are specific
timing requirements on these writes. Refer to Section 11.2.2 “Writing to the Data EEPROM
Memory” for more information.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
EECON1
EEPGD
CFGS
LWLO
FREE
WRERR
WREN
WR
RD
107
EECON2
EEPROM Control Register 2 (not a physical register)
108*
EEADRL
EEADRL<7:0>
106
EEADRH
—
EEADRH<6:0
106
EEDATL
EEDATL<7:0>
106
EEDATH
—
—
EEDATH<5:0>
106
INTCON
GIE
PEIE
TMR0IE
INTE
IOCIE
TMR0IF
INTF
IOCIF
83
PIE2
OSFIE
—
C1IE
EEIE
BCL1IE
—
—
—
85
PIR2
OSFIF
—
C1IF
EEIF
BCL1IF
—
—
—
87
Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used by data EEPROM module.
* Page provides register information.



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