PIC18F64J90-I/PT Microchip Technology, PIC18F64J90-I/PT Datasheet - Page 21

• Manufacturer Part Number: PIC18F64J90-I/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F64J90-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5.0
The Configuration Words of the PIC18F6XJXX/8XJXX
devices are implemented as volatile memory registers, as
opposed to the programmable nonvolatile memory used
in other PIC18 devices. All of the Configuration registers
(CONFIG1L, CONFIG1H, CONFIG2L, CONFIG2H,
CONFIG3L and CONFIG3H) are automatically loaded
following each device Reset.
The data for these registers is taken from the four Flash
Configuration Words located at the end of program
memory. Configuration data is stored in order, starting
with CONFIG1L in the lowest Flash address and
ending with CONFIG4H in the last address. The
mapping to specific Configuration Words is shown in
Table 5-1. While four words are reserved in program
memory, only three words (CONFIG1L through
CONFIG3H) are used for device configuration. Users
should
Configuration Word data and write their application
code accordingly.
The upper four bits of each Flash Configuration Word
should always be stored in program memory as ‘1111’.
This is done so these program memory addresses will
always be ‘1111 xxxx xxxx xxxx’ and interpreted
as a NOP instruction if they were ever to be executed.
Because the corresponding bits in the Configuration
Words are unimplemented, they will not change the
device’s configuration.
The Configuration and Device ID registers are
summarized in Table 5-2. A listing of the individual
Configuration bits and their options is provided in
Table 5-3.
 2009 Microchip Technology Inc.
CONFIGURATION WORD
always
reserve
these
locations
for
PIC18F6XJXX/8XJXX
TABLE 5-1:
CONFIG1L
CONFIG1H
CONFIG2L
CONFIG2H
CONFIG3L
CONFIG3H
CONFIG4L
CONFIG4H
Note 1:
Configuration
Byte
2:
See Table 2-2 for the complete addresses
within code space for specific devices and
memory sizes.
Unimplemented in PIC18F6XJXX/8XJXX
devices.
(2)
(2)
MAPPING OF THE FLASH
CONFIGURATION WORDS TO
THE CONFIGURATION
REGISTERS
Code Space
Address
XXXFAh
XXXFBh
XXXFCh
XXXFDh
XXXFEh
XXXFFh
XXXF8h
XXXF9h
(1)
DS39644L-page 21
Configuration
Register
Address
300000h
300001h
300002h
300003h
300004h
300005h
300006h
300007h