PIC18F6490-E/PT Microchip Technology, PIC18F6490-E/PT Datasheet - Page 294

• Manufacturer Part Number: PIC18F6490-E/PT
• Description: IC PIC MCU FLASH 16KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6490-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• For Use With: DM163028 - BOARD DEMO PICDEM LCD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

PIC18F6390/6490/8390/8490
23.5
The overall structure of the code protection on the
PIC18F6390/6490/8390/8490 Flash devices differs
from previous PIC18 devices.
For all devices in the PIC18F6X90/8X90 family, the
user program memory is made of a single block.
Figure 23-5 shows the program memory organization
for individual devices. Code protection for this block is
controlled by a single bit, CP (CONFIG5L<0>). The CP
bit inhibits external reads from and writes to the entire
program memory space. It has no direct effect in
normal execution mode.
FIGURE 23-5:
TABLE 23-3:
DS39629C-page 292
300008h
Legend:
(PIC18F6390/8390)
File Name
Program Memory
Program Verification and
Code Protection
Unimplemented
Shaded cells are unimplemented.
8 Kbytes
Read ‘0’s
CONFIG5L
Block
SUMMARY OF CODE PROTECTION REGISTERS
CODE-PROTECTED PROGRAM MEMORY FOR PIC18F6390/6490/8390/8490
MEMORY SIZE/DEVICE
000000h
001FFFh
002000h
1FFFFFh
Address
Bit 7
Range
—
(PIC18F6490/8490)
Bit 6
Program Memory
—
Unimplemented
16 Kbytes
Read ‘0’s
Block
Bit 5
—
000000h
003FFFh
004000h
1FFFFFh
Address
23.5.1
The program memory may be read to any location
using the table read instructions. The Device ID and the
Configuration registers may be read with the table read
instructions.
23.5.2
The Configuration registers can only be written via
ICSP using an external programmer. No separate
protection bit is associated with them.
Range
Bit 4
—
READING PROGRAM MEMORY
AND OTHER LOCATIONS
CONFIGURATION REGISTER
PROTECTION
Bit 3
(Unimplemented Memory Space)
—
Block Code Protection
Controlled By:
Bit 2
© 2007 Microchip Technology Inc.
CP, EBTR
—
Bit 1
—
Bit 0
CP