PIC18F6621-I/PT Microchip Technology, PIC18F6621-I/PT Datasheet - Page 7

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: IC PIC MCU FLASH 32KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6621-I/PT

• Core Size: 8-Bit
• Program Memory Size: 64KB (32K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.75K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 53
• Eeprom Memory Size: 1024Byte
• Ram Memory Size: 3.75KB
• Cpu Speed: 40MHz
• No. Of Timers: 5
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3840 B
• Interface Type: MSSP, SPI, I2C, EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 53
• 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• 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: Details

2.6
The PGC pin is used as a clock input pin and the PGD
pin is used for entering command bits and data input/
output during serial operation. Commands and data are
transmitted on the rising edge of PGC, latched on the
falling edge of PGC, and are Least Significant bit (LSb)
first.
2.6.1
All instructions are 20 bits, consisting of a leading 4-bit
command followed by a 16-bit operand which depends
on the type of command being executed. To input a
command, PGC is cycled four times. The commands
needed for programming and verification are shown in
Table 2-3.
Depending on the 4-bit command, the 16-bit operand
represents 16 bits of input data or 8 bits of input data
and 8 bits of output data.
Throughout this specification, commands and data are
presented as illustrated in Table 2-4. The 4-bit com-
mand is shown MSb first. The command operand, or
“Data Payload”, is shown <MSB><LSB>. Figure 2-8
demonstrates how to serially present a 20-bit
command/operand to the device.
2.6.2
The core instruction passes a 16-bit instruction to the
CPU core for execution. This is needed to setup
registers as appropriate for use with other commands.
FIGURE 2-8:
 2003 Microchip Technology Inc.
PGC
PGD
Serial Program/Verify Operation
4-BIT COMMANDS
CORE INSTRUCTION
P3
4-bit Command
1
P2
1
2
P4
0
TABLE WRITE, POST-INCREMENT TIMING (1101)
3
1
4
1
P2A
P5
P2B
1
0
2
0
0
3
0
4
0
5
0
6
PGD = Input
0
16-bit Data Payload
4
7
1
8
0
TABLE 2-3:
TABLE 2-4:
Core Instruction
(Shift in16-bit instruction)
Shift out TABLAT register
Table Read
Table Read, post-increment
Table Read, post-decrement
Table Read, pre-increment
Table Write
Table Write, post-increment by 2
Table Write, post-decrement by 2
Table Write, start programming
9
Command
0
1101
10
4-bit
0
C
PIC18F6X2X/8X2X
11
1
12
1
Description
Payload
13
3C 40
1
Data
14
COMMANDS FOR
PROGRAMMING
SAMPLE COMMAND
SEQUENCE
1
3
15
0
Table Write,
post-increment by 2
16
0
P5A
Fetch Next 4-bit Command
Core Instruction
1
n
2
DS30499B-page 7
n
3
n
Command
4
0000
0010
1000
1001
1010
1011
1100
1101
1110
1111
4-bit
n