參數(shù)資料
型號: PIC16F77
廠商: Microchip Technology Inc.
英文描述: 40-Pin 8-Bit CMOS FLASH Microcontrollers(40腳、8位CMOS 閃速微控制器)
中文描述: 40引腳8位CMOS閃存微控制器(40腳,8位的CMOS閃速微控制器)
文件頁數(shù): 43/170頁
文件大?。?/td> 3150K
代理商: PIC16F77
2000 Microchip Technology Inc.
Advance Information
DS30325A-page 43
PIC16F7X
4.4
Operation During Code Protect
FLASH program memory has its own code protect
mechanism. External Read and Write operations are
disabled if this mechanism is enabled.
The microcontroller can read and execute instructions
out of the internal FLASH program memory, regardless
of the state of the code protect configuration bits.
TABLE 4-1:
REGISTERS ASSOCIATED WITH PROGRAM FLASH
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR,
BOR
Value on
all other
RESETS
10Dh
PMADR
Address Register Low Byte
xxxx xxxx
uuuu uuuu
10Fh
PMADRH
Address Register High Byte
xxxx xxxx
uuuu uuuu
10Ch
PMDATA
Data Register Low Byte
xxxx xxxx
uuuu uuuu
10Eh
PMDATH
Data Register High Byte
xxxx xxxx
uuuu uuuu
18Ch
PMCON1
(1)
RD
1--- ---0
1--- ---0
Legend:
Note 1:
x
= unknown,
u
= unchanged, r = reserved,
-
= unimplemented read as
0
. Shaded cells are not used during FLASH access.
This bit always reads as a
1
.
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