PIC18F97J60-I/PF Microchip Technology, PIC18F97J60-I/PF Datasheet - Page 10

• Manufacturer Part Number: PIC18F97J60-I/PF
• Description: IC PIC MCU FLASH 65KX16 100TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F97J60-I/PF

• Program Memory Type: FLASH
• Program Memory Size: 128KB (64K x 16)
• Package / Case: 100-TQFP, 100-VQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 41.667MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 70
• Ram Size: 3808 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• 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-ch x 10-bit
• Package: 100TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 41.667 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162064 - HEADER INTFC MPLABICD2 64/80/100DM163024 - BOARD DEMO PICDEM.NET 2
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F97J60 FAMILY
3.1.2
It is possible to erase a single row (1024 bytes of data),
provided the block is not code-protected. Rows are
located at static boundaries beginning at program
memory address 000000h, extending to the internal
program memory limit (see Section 2.2 “Memory
Maps”).
The Row Erase duration is internally timed. After the
WR bit in EECON1 is set, a NOP is issued, where the
4th PGC is held high for the duration of the Row Erase
time, P10.
The code sequence to Row Erase a PIC18F97J60 fam-
ily device is shown in Table 3-2. The flowchart shown in
Figure 3-3 depicts the logic necessary to completely
erase a PIC18F97J60 family device. The timing diagram
that details the “Row Erase” operation and parameter
P10 is shown in Figure 3-4.
TABLE 3-2:
FIGURE 3-4:
DS39688D-page 10
Step 1: Enable memory writes.
Step 2: Point to first row in code memory.
Step 3: Enable erase and erase single row.
Step 4: Repeat step 3, with Address Pointer incremented by 1024 until all rows are erased.
Note:
Command
PGC
PGD
0000
0000
0000
0000
0000
0000
0000
4-Bit
ICSP ROW ERASE
The TBLPTR register can point at any byte
within the row intended for erase.
1
4-Bit Command
0
2
0
84 A6
6A F8
6A F7
6A F6
88 A6
82 A6
00 00
ERASE CODE MEMORY CODE SEQUENCE
3
0
Data Payload
SET WR AND START ROW-ERASE TIMING
4
0
P5
1
0
2
1
3
16-Bit Data Payload
BSF
CLRF
CLRF
CLRF
BSF
BSF
NOP – hold PGC high for time P10.
1
4
0
5
EECON1, WREN
TBLPTRU
TBLPTRH
TBLPTRL
EECON1, FREE
EECON1, WR
0
6
1
PGD = Input
15
0
16
1
P5A
FIGURE 3-3:
Addr = Addr + 1024
4-Bit Command
1
0
2
Core Instruction
0
3
0
0
Row-Erase Time
ROW ERASE CODE
MEMORY FLOW
P10
© 2009 Microchip Technology Inc.
No
Start Erase Sequence
and Hold PGC High
4
for Time P10
Row Erase
Device for
Configure
P5
Done?
Rows
Done
Start
All
Data Payload
1
Yes
Addr = 0
0
16-Bit
2
0
3
0