PIC18F6520-I/PT Microchip Technology, PIC18F6520-I/PT Datasheet - Page 24

• Manufacturer Part Number: PIC18F6520-I/PT
• Description: IC MCU FLASH 16KX16 EEPROM64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6520-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 32KB (16K x 16)
• Package / Case: 64-TFQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 52
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C/SPI/USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 52
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM183032, DM183022
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12-ch x 10-bit
• Package: 64TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT64PT5 - SOCKET TRAN ICE 64MQFP/TQFPAC164319 - MODULE SKT MPLAB PM3 64TQFPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18FXX20
4.5
A data EEPROM address may be read via a sequence
of core instructions (4-bit command, ‘0000’) and then
output on SDATA via the 4-bit command, ‘0010’ (Shift
Out Data Holding register). The result may then be
immediately compared to the appropriate data in the
programmer’s memory for verification. Refer to
Section 4.4 for implementation details of reading data
EEPROM.
4.6
The term “Blank Check” means to verify that the device
has no programmed memory cells. All memories must
be verified: Code Memory, Data EEPROM, ID
Locations, and Configuration bits. The Device ID
registers (3FFFFEh:3FFFFFh) should be ignored.
A “blank” or “erased” memory cell will read as a ‘1’. So,
“Blank Checking” a device merely means to verify that
all bytes read as FFh, except the Configuration bits.
Unused (reserved) Configuration bits will read ‘0’
(programmed).
configuration expect data for the various PIC18FXX20
devices.
DS39583C-page 24
Verify Data EEPROM
Blank Check
Refer
to
Table 5-2
for
blank
Given that “Blank Checking” is merely code and data
EEPROM verification with FFh expect data, refer to
Section 4.4 and Section 4.2 for implementation details.
FIGURE 4-5:
Blank Check Device
Device
Blank?
Abort
Start
Is
No
BLANK CHECK FLOW
 2010 Microchip Technology Inc.
Yes
Continue