DSPIC30F2020-30I/SP Microchip Technology, DSPIC30F2020-30I/SP Datasheet - Page 17

• Manufacturer Part Number: DSPIC30F2020-30I/SP
• Description: IC DSPIC MCU/DSP 12K 28DIP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F2020-30I/SP

• Package / Case: 28-DIP (0.300", 7.62mm)
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 12KB (4K x 24)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM300027, DM330011, DM300018, DM183021
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM300023 - KIT DEMO DSPICDEM SMPS BUCKDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8.0
8.1
The programming executive command set is shown in
Table
length, time out and description for each command.
Functional details on each command are provided in
the command descriptions
Descriptions”).
8.2
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.
FIGURE 8-1:
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
programming 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.
© 2010 Microchip Technology Inc.
15
Opcode
8-1. This table contains the opcode, mnemonic,
Command Data First Word (if required)
Command Data Last Word (if required)
PROGRAMMING EXECUTIVE
COMMANDS
Command Set
Command Format
12 11
Section 9.2.1 “Opcode
COMMAND FORMAT
Table 8-1
•
•
(Section 8.5 “Command
Length
Figure
will return a “NACK”
8-1). The 16-bit
Field”).
0
8.3
When 24-bit instruction words are transferred across
the 16-bit SPI interface, they are packed to conserve
space using the format shown in
format minimizes traffic over the SPI and provides the
programming executive with data that is properly
aligned for performing table write operations.
FIGURE 8-2:
8.4
The
unsupported commands. Additionally, due to the
memory constraints of the programming executive, no
checking is performed on the data contained in the
programmer command. It is the responsibility of the
programmer to command the programming executive
with valid command arguments, or the programming
operation may fail. Additional information on error
handling is provided in
Field”.
15
lswx:
MSBx: Most Significant Byte of instruction word
Note:
programming
Packed Data Format
Programming Executive Error
Handling
Least significant 16 bits of instruction word
MSB2
When the number of instruction words
transferred is odd, MSB2 is zero and lsw2
cannot be transmitted.
PACKED INSTRUCTION
WORD FORMAT
executive
lsw1
lsw2
8 7
Section 9.2.3 “QE_Code
will
DS70284C-page 17
MSB1
Figure
“NACK”
8-2. This
0
all