PIC18F4439-I/PT Microchip Technology, PIC18F4439-I/PT Datasheet - Page 18

• Manufacturer Part Number: PIC18F4439-I/PT
• Description: IC MCU FLASH 6KX16 EE A/D 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4439-I/PT

• 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: 32
• Program Memory Size: 12KB (6K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 640 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 640 B
• Interface Type: I2C, SPI, AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2 V to 5.5 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: DV164005, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8
• For Use With: 444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PIC18FXX39
3.5
The ID locations are programmed much like the code
memory, except that multi-panel writes must be
disabled.
automatically be enabled, based on the value of the
Table Pointer. The ID registers are mapped in
addresses 200000h through 200007h. These locations
read out normally, even after code protection.
TABLE 3-7:
DS30480C-page 18
Step 1: Configure device for single panel writes.
Step 2: Direct access to code memory.
Step 3: Load write buffer. Panel will be automatically determined by address.
4-bit Command
0000
0000
0000
0000
0000
0000
1100
0000
0000
0000
0000
0000
0000
0000
0000
1101
1101
1101
1111
0000
ID Location Programming
The single panel that will be written will
0E 3C
6E F8
0E 00
6E F7
0E 06
6E F6
00 00
8E A6
9C A6
0E 20
6E F8
0E 00
6E F7
0E 00
6E F6
<LSB><MSB>
<LSB><MSB>
<LSB><MSB>
<LSB><MSB>
00 00
WRITE ID SEQUENCE
Data Payload
MOVLW 3Ch
MOVWF TBLPTRU
MOVLW 00h
MOVWF TBLPTRH
MOVLW 06h
MOVWF TBLPTRL
Write 00h to 3C0006h to enable single panel writes.
BSF EECON1, EEPGD
BCF EECON1, CFGS
MOVLW 20h
MOVWF TBLPTRU
MOVLW 00h
MOVWF TBLPTRH
MOVLW 00h
MOVWF TBLPTRL
Write 2 bytes and post-increment address by 2
Write 2 bytes and post-increment address by 2
Write 2 bytes and post-increment address by 2
Write 2 bytes and start programming
NOP - hold SCLK high for time P9
Preliminary
Table 3-7 demonstrates the code sequence required to
write the ID locations.
Note:
Core Instruction
For single panel programming, the user
must still fill the 8-byte data buffer for the
panel.
 2010 Microchip Technology Inc.