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PIC24F16KA102 데이터시트(PDF) 35 Page - Microchip Technology

부품명 PIC24F16KA102
상세설명  Flash Programming Specifications
PDF  48 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC24F16KA102 데이터시트(HTML) 35 Page - Microchip Technology

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Advance Information
DS39919A-page 35
5.2.4
COMMAND DESCRIPTIONS
The commands supported by the programming
executive are described in Section 5.2.5 “SCHECK
Command”
through
Section 5.2.13
“QVER
Command”.
5.2.5
SCHECK
COMMAND
The SCHECK command instructs the programming
executive to merely generate a response. This
command is used as a “Sanity Check” to verify if the
programming executive is operational.
Expected Response (2 words):
1000h
0002h
5.2.6
READC
COMMAND
The READC command instructs the programming
executive to read N or Device ID registers, starting from
the 24-bit address specified by Addr_MSB and
Addr_LS.
When this command is used to read the Device ID
registers, the upper byte in every data word returned by
the programming executive is 00h and the lower byte
contains the Device ID register value.
Expected Response (4 + 3 * (N – 1)/2 words for N odd):
1100h
2 + N
Device ID Register 1
...
Device Register N
5.2.7
READD
COMMAND
The READD command instructs the programming
executive to read N 16-bit words from data EEPROM
memory, starting from the 24-bit address specified by
Addr_MSB and Addr_LS.
Expected Response (N + 2 words):
1E00h
2 + N
Data word 1
...
Data word N
15
12 11
0
Opcode
Length
Field
Description
Opcode
0h
Length
1h
Note:
This instruction is provided for development
purposes only; this is not required for
programming.
15
12 11
8 7
0
Opcode
Length
NAddr_MSB
Addr_LS
Field
Description
Opcode
1h
Length
3h
N
Number of 8-bit Device ID registers to
read (max. of 256).
Addr_MSB
MSb of 24-bit source address.
Addr_LS
Least Significant 16 bits of 24-bit
source address.
Note:
This command can only be used to read
8-bit or 16-bit data.
Note:
Reading
unimplemented
memory
will
cause the programming executive to
reset. Ensure that only memory locations
present
on
a
particular
device
are
accessed.
15
12 11
8 7
0
Opcode
Length
Reserved0
N
Reserved1
Addr_MSB
Addr_LS
Field
Description
Opcode
Eh
Length
4h
Reserved0
0h
N
Number of 16-bit words to read
(max of 256).
Reserved1
0h
Addr_MSB
MSb of 24-bit source address.
Addr_LS
Least Significant 16 bits of 24-bit
source address.
Note:
This command can only be used to read
16-bit data.



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