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PIC24FJ64GA データシート(PDF) 36 Page - Microchip Technology

部品番号 PIC24FJ64GA
部品情報  PIC24FJXXXGA0XX Flash Programming Specification
PDF  52 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC24FJ64GA データシート(HTML) 36 Page - Microchip Technology

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PIC24FJXXXGA0XX
DS39768D-page 36
© 2008 Microchip Technology Inc.
TABLE 5-1:
PROGRAMMING EXECUTIVE COMMAND SET
5.2.4
COMMAND DESCRIPTIONS
All commands supported by the programming executive
are described in Section 5.2.5 “SCHECK Command”
through Section 5.2.12 “QVER Command”.
5.2.5
SCHECK COMMAND
The SCHECK command instructs the programming
executive to do nothing but generate a response. This
command is used as a “Sanity Check” to verify that the
programming executive is operational.
Expected Response (2 words):
1000h
0002h
Opcode
Mnemonic
Length
(16-bit words)
Time-out
Description
0h
SCHECK
1
1 ms
Sanity check.
1h
READC
3
1 ms
Read an 8-bit word from the specified Device ID register.
2h
READP
4
1 ms/row
Read N 24-bit instruction words of code memory starting from
the specified address.
3h
RESERVED
N/A
N/A
This command is reserved. It will return a NACK.
4h
PROGC
4
5 ms
Write an 8-bit word to the specified Device ID registers.
5h
PROGP
99
5 ms
Program one row of code memory at the specified address,
then verify.(1)
7h
RESERVED
N/A
N/A
This command is reserved. It will return a NACK.
8h
RESERVED
N/A
N/A
This command is reserved. It will return a NACK.
9h
RESERVED
N/A
N/A
This command is reserved. It will return a NACK.
Ah
QBLANK
3
TBD
Query if the code memory is blank.
Bh
QVER
1
1 ms
Query the programming executive software version.
Dh
PROGW
4
5 ms
Program one instruction word of code memory at the specified
address, then verify.
Legend: TBD = To Be Determined
Note 1:
One row of code memory consists of (64) 24-bit words. Refer to Table 2-3 for device-specific information.
15
12 11
0
Opcode
Length
Field
Description
Opcode
0h
Length
1h
Note:
This
instruction
is
not
required
for
programming
but
is
provided
for
development purposes only.



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