PIC18F97J60T-I/PT Microchip Technology, PIC18F97J60T-I/PT Datasheet - Page 104

• Manufacturer Part Number: PIC18F97J60T-I/PT
• Description: IC PIC MCU FLASH 64KX16 100TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F97J60T-I/PT

• Core Size: 8-Bit
• Program Memory Size: 128KB (64K x 16)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 41.667MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: FLASH
• Ram Size: 3808 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 70
• Ram Memory Size: 3808Byte
• Cpu Speed: 41.667MHz
• No. Of Timers: 5
• No. Of: RoHS Compliant
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3808 B
• Interface Type: Display Driver, Ethernet, EUSART, I2C, MSSP, SPI
• Maximum Clock Frequency: 41.667 MHz
• Number Of Programmable I/os: 70
• Number Of Timers: 5
• Operating Supply Voltage: 2.35 V to 3.6 V
• 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, DV164136, DM183033
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162064 - HEADER INTFC MPLABICD2 64/80/100DM163024 - BOARD DEMO PICDEM.NET 2AC164323 - MODULE SKT FOR 100TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC18F97J60 FAMILY
6.4
The minimum erase block is 1024 bytes. Only through
the use of an external programmer, or through ICSP
control, can larger blocks of program memory be Bulk
Erased. Word Erase in the Flash array is not supported.
When initiating an erase sequence from the micro-
controller itself, a block of 1024 bytes of program
memory is erased. The Most Significant 11 bits of the
TBLPTR<20:10> point to the block being erased.
TBLPTR<9:0> are ignored.
The EECON1 register commands the erase operation.
The WREN bit must be set to enable write operations.
The FREE bit is set to select an erase operation.
For protection, the write initiate sequence for EECON2
must be used.
A long write is necessary for erasing the internal
Flash. Instruction execution is halted while in a long
write cycle. The long write will be terminated by the
internal programming timer. An on-chip timer controls
the erase time. The write/erase voltages are
generated by an on-chip charge pump, rated to
operate over most of the voltage range of the device.
See parameter D132B (V
EXAMPLE 6-2:
DS39762E-page 104
Required
Sequence
Erasing Flash Program Memory
ERASE_ROW
ERASING A FLASH PROGRAM MEMORY ROW
MOVLW
MOVWF
MOVLW
MOVWF
MOVLW
MOVWF
BSF
BSF
BCF
MOVLW
MOVWF
MOVLW
MOVWF
BSF
BSF
PEW
) for specific lim
CODE_ADDR_UPPER
TBLPTRU
CODE_ADDR_HIGH
TBLPTRH
CODE_ADDR_LOW
TBLPTRL
EECON1, WREN
EECON1, FREE
INTCON, GIE
55h
EECON2
0AAh
EECON2
EECON1, WR
INTCON, GIE
its.
6.4.1
The sequence of events for erasing a block of internal
program memory location is:
1.
2.
3.
4.
5.
6.
7.
8.
; load TBLPTR with the base
; address of the memory block
; enable write to memory
; enable Row Erase operation
; disable interrupts
; write 55h
; write 0AAh
; start erase (CPU stall)
; re-enable interrupts
Load Table Pointer register with address of row
being erased.
Set the EECON1 register for the erase operation:
• set WREN bit to enable writes;
• set FREE bit to enable the erase.
Disable interrupts.
Write 55h to EECON2.
Write 0AAh to EECON2.
Set the WR bit. This will begin the Row Erase
cycle.
The CPU will stall for duration of the erase.
Re-enable interrupts.
FLASH PROGRAM MEMORY
ERASE SEQUENCE
© 2009 Microchip Technology Inc.