參數(shù)資料
型號: 16F872
廠商: Microchip Technology Inc.
英文描述: CAT 5E CROSSOVER PATCH CORD CABLE GREEN 10 FT
中文描述: 28引腳,8位閃存微控制器的CMOS
文件頁數(shù): 30/160頁
文件大?。?/td> 2600K
代理商: 16F872
PIC16F872
DS30221A-page 30
Preliminary
1999 Microchip Technology Inc.
REGISTER 4-1:
EECON1 REGISTER (ADDRESS 18Ch)
R/W-x
EEPGD
bit7
U-0
U-0
U-0
R/W-x
WRERR
R/W-0
WREN
R/S-0
WR
R/S-0
RD
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n= Value at POR reset
bit0
bit 7:
EEPGD
: Program / Data EEPROM Select bit
1
= Accesses Program memory
0
= Accesses data memory
(This bit cannot be changed while a read or write operation is in progress)
Unimplemented:
Read as '0'
WRERR
: EEPROM Error Flag bit
1
= A write operation is prematurely terminated
(any MCLR reset or any WDT reset during normal operation)
0
= The write operation completed
WREN
: EEPROM Write Enable bit
1
= Allows write cycles
0
= Inhibits write to the EEPROM
WR
: Write Control bit
1
= initiates a write cycle. (The bit is cleared by hardware once write is complete.) The WR bit can only
be set (not cleared) in software.
0
= Write cycle to the EEPROM is complete
RD
: Read Control bit
1
= Initiates an EEPROM read RD is cleared in hardware. The RD bit can only be set (not cleared) in
software.
0
= Does not initiate an EEPROM read
bit 6-4:
bit 3:
bit 2:
bit 1:
bit 0:
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