MCP1726T-ADJZEMF Microchip Technology, MCP1726T-ADJZEMF Datasheet - Page 78

• Manufacturer Part Number: MCP1726T-ADJZEMF
• Description: Regulator, Extended Industrial, HVSON, 8-Pin|
• Manufacturer: Microchip Technology

PIC12F683
11.6
Data memory can be code protected by programming
the CPD bit in the Configuration Word (Register 12-1)
to ‘0’.
When the data memory is code protected, the CPU is
able to read and write data to the data EEPROM. It is
recommended to code protect the program memory
when code protecting data memory. This prevents
anyone from programming zeroes over the existing
code (which will execute as NOPs) to reach an added
routine, programmed in unused program memory,
which
Programming unused locations in program memory to
‘0’ will also help prevent data memory code protection
from becoming breached.
TABLE 11-1:
DS41211A-page 76
0Bh/8Bh
0Ch
8Ch
9Ah
9Bh
9Ch
9Dh
Legend:
Note 1:
Address
outputs
DATA EEPROM OPERATION
DURING CODE PROTECT
x = unknown, u = unchanged, — = unimplemented read as ‘0’, q = value depends upon condition.
Shaded cells are not used by data EEPROM module.
EECON2 is not a physical register.
INTCON
PIR1
PIE1
EEDAT
EEADR
EECON1
EECON2
Name
the
REGISTERS/BITS ASSOCIATED WITH DATA EEPROM
(1)
contents
EEPROM Data Register
EEPROM Address Register
EEPROM Control Register 2
EEIE
Bit 7
EEIF
GIE
—
ADIE
PEIE
ADIF
of
Bit 6
—
data
CCP1IF
CCPIE
Bit 5
T0IE
Advance Information
—
memory.
INTE
Bit 4
—
—
—
WRERR WREN
CMIF
CMIE
GPIE
Bit 3
OSFIF
OSFIE TMR2IE TMR1IE 000- 0000 000- 0000
Bit 2
T0IF
TMR2IF TMR1IF 000- 0000 000- 0000
Bit 1
INTF
WR
GPIF
Bit 0
 2003 Microchip Technology Inc.
RD
0000 0000 0000 0000
0000 0000 0000 0000
0000 0000 0000 0000
---- x000 ---- q000
---- ---- ---- ----
POR, BOD
Value on
Value on all
Resets
other