Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Uživatelský manuál stáhnout pdf (Strana 62)

MAXQ Family User’s Guide:

MAXQ2000 Supplement

Family 2 Commands: Dump Variable Length (Password Protected)

Command 20h—Dump Code Variable Length

This command has a slightly different format depending on the length of the dump requested. It returns the contents of the application

flash/ROM—(LengthL) or (LengthH:LengthL) bytes/words starting at (AddressH:AddressL).

Command 21h—Dump Data Variable Length

This command has a slightly different format depending on the length of the dump requested. It returns the contents of the data

SRAM—(LengthL) or (LengthH:LengthL) bytes/words starting at (AddressH:AddressL).

Family 3 Commands: CRC Variable Length (Password Protected)

Command 30h—CRC Code Variable Length

This command has a slightly different format depending on the length of the CRC requested. It returns the CRC-16 value (CrcH:CrcL)

of the application flash/ROM—(LengthL) or (LengthH:LengthL) bytes/words starting at (AddressH:AddressL).

Command 31h—CRC Data Variable Length

This command has a slightly different format depending on the length of the CRC requested. It returns the CRC-16 value (CrcH:CrcL)

of the data SRAM – (LengthL) or (LengthH:LengthL) bytes/words starting at (AddressH:AddressL).

I/O Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6

Input (to dump

< 256 bytes/words)

20h 1 AddressL AddressH LengthL

Input (to dump

256+ bytes/words)

20h 2 AddressL AddressH LengthL LengthH

I/O Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6

Input (to dump

< 256 bytes/words)

21h 1 AddressL AddressH LengthL

Input (to dump

256+ bytes/words)

21h 2 AddressL AddressH LengthL LengthH

I/O Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6

Input (to CRC

< 256 bytes/words)

30h 1 AddressL AddressH LengthL

Input (to CRC

256+ bytes/words)

30h 2 AddressL AddressH LengthL LengthH

Output

CrcH CrcL

I/O Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6

Input (to CRC

< 256 bytes/words)

31h 1 AddressL AddressH LengthL

Input (to CRC

256+ bytes/words)

31h 2 AddressL AddressH LengthL LengthH

Output

CrcH CrcL

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