PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 272

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F4321 FAMILY
FIGURE 23-7:
FIGURE 23-8:
DS39689E-page 270
TBLPTR = 0008FFh
Results: All table reads from external blocks to Blockn are disabled whenever EBTRn = 0.
Note 1: See Figure 23-5 for block boundaries.
Results: Table reads permitted within Blockn, even when EBTRBn = 0.
Note 1: See Figure 23-5 for block boundaries.
TBLPTR = 0008FFh
Register Values
Register Values
PC = 003FFEh
PC = 007FFEh
TABLAT register returns a value of ‘0’.
TABLAT register returns the value of the data at the location TBLPTR.
EXTERNAL BLOCK TABLE READ (EBTRn) DISALLOWED
EXTERNAL BLOCK TABLE READ (EBTRn) ALLOWED
Program Memory
Program Memory
Boot Block
Boot Block
Block 0
TBLRD*
Block 1
Preliminary
Block 0
Block 1
TBLRD*
(1)
(1)
Configuration Bit Settings
Configuration Bit Settings
WRTB, EBTRB = 11
WRT1, EBTR1 = 11
WRT0, EBTR0 = 10
WRTB, EBTRB = 11
WRT0, EBTR0 = 10
WRT1, EBTR1 = 11
© 2007 Microchip Technology Inc.