PIC18LF6310-I/PT Microchip Technology, PIC18LF6310-I/PT Datasheet - Page 24

• Manufacturer Part Number: PIC18LF6310-I/PT
• Description: IC PIC MCU FLASH 4KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF6310-I/PT

• Core Size: 8-Bit
• Program Memory Size: 8KB (4K x 16)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 54
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• No. Of Pwm: RoHS Compliant
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F8410/8490/8493 FAMILY
5.3
To allow portability of code, a PIC18F8410/8490/8493
family device programmer is required to read the
Configuration Word locations from the Hex file. If
Configuration Word information is not present in the
Hex file, then a simple warning message should be
issued. Similarly, while saving a Hex file, all
Configuration Word information must be included. An
option to not include the Configuration Word
information may be provided. When embedding
Configuration Word information in the Hex file, it should
start at address 300000h.
Microchip Technology Inc. feels strongly that this
feature is important for the benefit of the end customer.
TABLE 5-4
DS39624C-page 24
PIC18F6310
PIC18F8310
PIC18F6390
PIC18F6393
PIC18F8390
PIC18F8393
PIC18F6410
PIC18F8410
PIC18F6490
PIC18F6493
PIC18F8490
PIC18F8493
Legend: Item
Device
Embedding Configuration Word
Information in the Hex File
CFGW =
SUM[a:b] =
SUM_ID =
+ =
& =
Protect
Code
None
None
CHECKSUM COMPUTATION
All
All
Description
Configuration Word
Sum of locations, a to b inclusive
Byte-wise sum of lower four bits of all customer ID locations
Addition
Bit-wise AND
SUM(0000:1FFF)+(CONFIG1L & 0000)+(CONFIG1H & 00CF)+
(CONFIG2L & 001F)+(CONFIG2H & 001F)+(CONFIG3L & 00C3)+
(CONFIG3H & 0085)+(CONFIG4L & 00C1)+(CONFIG4H & 0000)+
(CONFIG5L & 0001)+(CONFIG5H & 0000)+(CONFIG6L & 0000)+
(CONFIG6H & 0000)+(CONFIG7L & 0001)+(CONFIG7H & 0000)
(CONFIG1L & 0000)+(CONFIG1H & 00CF)+(CONFIG2L & 001F)+
(CONFIG2H & 001F)+(CONFIG3L & 00C3)+(CONFIG3H & 0085)+
(CONFIG4L & 00C1)+(CONFIG4H & 0000)+(CONFIG5L & 0001)+
(CONFIG5H & 0000)+(CONFIG6L & 0000)+(CONFIG6H & 0000)+
(CONFIG7L & 0001)+(CONFIG7H & 0000)+SUM(IDs)
SUM(0000:3FFF)+(CONFIG1L & 0000)+(CONFIG1H & 00CF)+
(CONFIG2L & 001F)+(CONFIG2H & 001F)+(CONFIG3L & 00C3)+
(CONFIG3H & 0085)+(CONFIG4L & 00C1)+(CONFIG4H & 0000)+
(CONFIG5L & 0001)+(CONFIG5H & 0000)+(CONFIG6L & 0000)+
(CONFIG6H & 0000)+(CONFIG7L & 0001)+(CONFIG7H & 0000)
(CONFIG1L & 0000)+(CONFIG1H & 00CF)+
(CONFIG2L & 001F)+(CONFIG2H & 001F)+(CONFIG3L & 00C3)+
(CONFIG3H & 0085)+(CONFIG4L & 00C1)+(CONFIG4H & 0000)+
(CONFIG5L & 0001)+(CONFIG5H & 0000)+(CONFIG6L & 0000)+
(CONFIG6H & 0000)+(CONFIG7L & 0001)+(CONFIG7H & 0000)+
SUM(IDs)
Checksum
5.4
The checksum is calculated by summing the following:
• The contents of all code memory locations
• The Configuration Word, appropriately masked
• ID locations
The Least Significant 16 bits of this sum are the
checksum.
Table 5-4 describes how to calculate the checksum for
each device.
Note:
Checksum Computation
The checksum calculation differs depend-
ing on the code-protect setting. Since the
code memory locations read out differently,
depending on the code-protect setting, the
table describes how to manipulate the
actual code memory values to simulate the
values that would be read from a protected
device. When calculating a checksum by
reading a device, the entire code memory
can simply be read and summed. The
Configuration Word and ID locations can
always be read.
© 2007 Microchip Technology Inc.
Blank
Value
E20C
C20C
0227
0225
AAh at 0
and Max
Address
C162
E162
0222
0220