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PIC18F4685-I/SP Datasheet(PDF) 362 Page - Microchip Technology

Part # PIC18F4685-I/SP
Description  28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
PDF  484 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4685-I/SP Datasheet(HTML) 362 Page - Microchip Technology

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PIC18F2682/2685/4682/4685
DS39761B-page 360
Preliminary
© 2007 Microchip Technology Inc.
FIGURE 24-6:
TABLE WRITE (WRTn) DISALLOWED
FIGURE 24-7:
EXTERNAL BLOCK TABLE READ (EBTRn) DISALLOWED
000000h
0007FFh
000800h
003FFFh
004000h
007FFFh
008000h
00BFFFh
00C000h
00FFFFh
WRTB, EBTRB = 11
WRT0, EBTR0 = 01
WRT1, EBTR1 = 11
WRT2, EBTR2 = 11
WRT3, EBTR3 = 11
TBLWT*
TBLPTR = 0008FFh
PC = 003FFEh
TBLWT*
PC = 00BFFEh
Register Values
Program Memory
Configuration Bit Settings
Results: All table writes disabled to Blockn whenever WRTn = 0.
010000h
013FFFh
014000h
017FFFh
WRT4, EBTR3 = 11
WRT5, EBTR3 = 11
TBLRD*
TBLPTR = 0008FFh
PC = 007FFEh
Results: All table reads from external blocks to Blockn are disabled whenever EBTRn = 0.
TABLAT register returns a value of ‘0’.
Register Values
Program Memory
Configuration Bit Settings
000000h
0007FFh
000800h
003FFFh
004000h
007FFFh
008000h
00BFFFh
00C000h
00FFFFh
WRTB, EBTRB = 11
WRT0, EBTR0 = 01
WRT1, EBTR1 = 11
WRT2, EBTR2 = 11
WRT3, EBTR3 = 11
010000h
013FFFh
014000h
017FFFh
WRT4, EBTR3 = 11
WRT5, EBTR3 = 11



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