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PIC18F4539-E/MLSQTP Datasheet(PDF) 211 Page - Microchip Technology

Part # PIC18F4539-E/MLSQTP
Description  Enhanced FLASH Microcontrollers with Single Phase Induction Motor Control Kernel
PDF  322 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4539-E/MLSQTP Datasheet(HTML) 211 Page - Microchip Technology

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 2002 Microchip Technology Inc.
Preliminary
DS30485A-page 209
PIC18FXX39
FIGURE 20-5:
EXTERNAL BLOCK TABLE READ (EBTRn) DISALLOWED
FIGURE 20-6:
EXTERNAL BLOCK TABLE READ (EBTRn) ALLOWED
000000h
0001FFh
000200h
001FFFh
002000h
003FFFh
004000h
005FFFh
WRTB,EBTRB = 11
WRT0,EBTR0 = 10
WRT1,EBTR1 = 11
WRT2,EBTR2 = 11
TBLRD *
TBLPTR = 000FFF
PC = 002FFE
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
0001FFh
000200h
001FFFh
002000h
003FFFh
004000h
005FFFh
WRTB,EBTRB = 11
WRT0,EBTR0 = 10
WRT1,EBTR1 = 11
WRT2,EBTR2 = 11
TBLRD *
TBLPTR = 000FFF
PC = 001FFE
Register Values
Program Memory
Configuration Bit Settings
Results: Table Reads permitted within Blockn, even when EBTRBn = 0.
TABLAT register returns the value of the data at the location TBLPTR.



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