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PIC16F753 Datasheet(PDF) 27 Page - Microchip Technology

No. de pieza PIC16F753
Descripción Electrónicos  14/16-Pin, Flash-Based 8-Bit CMOS Microcontrollers
PDF  230 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F753 Datasheet(HTML) 27 Page - Microchip Technology

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 2013-2015 Microchip Technology Inc.
DS40001709C-page 27
PIC16F753/HV753
REGISTER 3-6:
PMCON2: PROGRAM MEMORY CONTROL 2 REGISTER
REGISTER 3-5:
PMCON1: PROGRAM MEMORY CONTROL 1 REGISTER
U-0
U-0
U-0
U-0
U-0
R/W-0/0
R/S/HC-0/0
R/S/HC-0/0
—
—
—
—
—WREN
WR
RD
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
HC = Bit is cleared by hardware
bit 7-3
Unimplemented: Read as ‘0’
bit 2
WREN: Program/Erase Enable bit
1
= Allows program/erase cycles
0
= Inhibits programming/erasing of program Flash
bit 1
WR: Write Control bit
1
= Initiates a program Flash program/erase operation
The operation is self-timed and the bit is cleared by hardware once operation is complete.
The WR bit can only be set (not cleared) in software.
0
= Program/erase operation to the Flash is complete and inactive
bit 0
RD: Read Control bit
1
= Initiates a program Flash read. Read takes one cycle. RD is cleared in hardware. The RD bit can
only be set (not cleared) in software.
0
= Does not initiate a program Flash read
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
W-0/0
Program Memory 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
Flash Memory Unlock Pattern bits:
To unlock writes, a 55h must be written first, followed by an AAh, before setting the WR bit of the
PMCON1 register. The value written to this register is used to unlock the writes. There are specific
timing requirements on these writes.



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