PIC18F85J90-I/PT Microchip Technology, PIC18F85J90-I/PT Datasheet - Page 32

• Manufacturer Part Number: PIC18F85J90-I/PT
• Description: IC PIC MCU FLASH 16KX16 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F85J90-I/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 67
• Ram Memory Size: 2KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• No. Of Pwm Channels: 2
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: AUSART, EUSART, I2C, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 67
• Number Of Timers: 4
• 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, DM163030
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Package: 80TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164328 - MODULE SKT FOR 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

MCP3909/PIC18F85J90 Single Phase Energy Meter Reference Design
FIGURE 4-1:
FIGURE 4-2:
DS51884A-page 32
TABLE 4-2:
READ on ENERGY_W_L_RAW Register
TABLE 4-1:
7
WRITE of 255d to
PHA_W_OFF Register
7
7
7
Command Byte
6
Command Byte
6
6
6
# Bytes to Read (2 Bytes ASCII)
5
5
5
5
Description
4
4
4
4
4.1.1.4
Write specified bytes.
WRITE Command Protocol.
4.1.1.5
Read Command Protocol.
3
DESCRIPTION
3
3
3
ASCII Data
Note:
Note:
READ COMMAND EXAMPLES
2
Example: 'W030000102030405060708090A0B0C0D0E0FX'.
Returns: 'W030000102030405060708090A0B0C0D0E0FX'.
Example: 'R03010X' (read 16 bytes starting at address 30h).
Returns: 'R030000102030405060708090A0B0C0D0E0FX'
2
2
2
WRITE COMMAND EXAMPLES
1
1
1
1
0
0
0
0
“R” READ: READ STARTING AT SPECIFIED ADDRESS
“W” WRITE: WRITE STARTING AT SPECIFIED ADDRESS
If number of data characters is odd, the last character (the one just prior to
the 'X') will be ignored.
For 16 bytes, there are 32 ASCII characters returned or two characters per
byte.
7
7
7
7
6
6
6
6
5
5
5
5
Command ASCII
4
4
“W 170 00 F F X”
4
4
3
3
3
3
2
2
2
2
1
1
1
1
0
0
0
0
COMMAND ASCII
3 Address Bytes (ASCII)
3 Address Bytes (ASCII)
7
“R 0D4 06 X”
7
7
7
6
6
6
6
“X” (ASCII)
5
5
5
“X” (ASCII)
5
4
4
4
4
3
57 31 37 30 30 30 46 46 58
3
3
3
2
2
2
2
1
Command Hex
1
1
1
0
0
0
0
52 00 44 34 30 36 58
COMMAND HEX
7
7
© 2009 Microchip Technology Inc.
6
6
5
5
4
4
3
3
2
2
1
1
0
0