PIC24FJ256GA106-I/MR Microchip Technology, PIC24FJ256GA106-I/MR Datasheet - Page 43

• Manufacturer Part Number: PIC24FJ256GA106-I/MR
• Description: IC, 16BIT MCU, PIC24F, 32MHZ, QFN-64
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ256GA106-I/MR

• Controller Family/series: PIC24
• No. Of I/o's: 53
• Ram Memory Size: 16KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Core Size: 16 Bit
• Program Memory Size: 256KB
• Peripherals: ADC, Comparator, PWM, RTC, Timer
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, PMP, SPI, UART/USART
• Number Of I /o: 53
• Program Memory Type: FLASH
• Ram Size: 16K 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
• Package / Case: 64-VFQFN, Exposed Pad
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 52
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DM240011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARD
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

5.1.3
The programming executive uses no Watchdog Timer
or
programmer. If the programmer does not follow the flow
control mechanism using PGECx, as described in
Section 5.1.1 “Communication Interface and Proto-
col”, it is possible that the programming executive will
behave unexpectedly while trying to send a response
FIGURE 5-3:
5.2
The programming executive command set is provided
in
mnemonic, length, time-out and description for each
command. Functional details on each command are
provided in
5.2.1
All programming executive commands have a general
format consisting of a 16-bit header and any required
data for the command (see
header consists of a 4-bit opcode field, which is used to
identify the command, followed by a 12-bit command
length field.
 2010 Microchip Technology Inc.
Table
time-out
PGECx
PGEDx
Programming Executive
Commands
5-1. This table contains the opcode,
Section 5.2.4 “Command
TIME-OUTS
COMMAND FORMAT
for
1
MSB X X X LSB
Last Command Word
PGECx = Input
PGEDx = Input
transmitting
2
Host Transmits
PROGRAMMING EXECUTIVE – PROGRAMMER COMMUNICATION PROTOCOL
15 16
Figure
P8
responses
PIC24FJXXXDA1/DA2/GB2/GA3
5-4). The 16-bit
Descriptions”.
Programming Executive
P9
Processes Command
PGECx = Input (Idle)
to
1
PGEDx = Output
the
0
to the programmer. Since the programming executive
has no time-out, it is imperative that the programmer
correctly follow the described communication protocol.
As a safety measure, the programmer should use the
command time-outs identified
Table
grammer should reset the programming executive and
start programming the device again.
FIGURE 5-4:
The command opcode must match one of those in the
command set. Any command that is received, which
does not match the list in
response (see
The command length is represented in 16-bit words
since the SPI operates in 16-bit mode. The program-
ming executive uses the command length field to
determine the number of words to read from the SPI
port. If the value of this field is incorrect, the command
will not be properly received by the programming
executive.
P20
15
Opcode
5-1. If the command time-out expires, the pro-
Command Data First Word (if required)
Command Data Last Word (if required)
1
MSB X X X LSB
12
2
Host Clocks Out Response
11
Section 5.3.1.1 “Opcode
15 16
PGEDx = Output
PGECx = Input
COMMAND FORMAT
P21
Table
•
•
1
MSB X X X LSB
Length
5-1, will return a “NACK”
2
and
DS39970B-page 43
15 16
Field”).
provided
0
in