Instruction Manual

__________________________________________________________________________________________________________ 13-8
MAXQ7667 User’s Guide
13.3.3 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).
13.3.4 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
Output
CodeByte 1 CodeByte 2 • • •
CodeByte N, where N = dump length
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
Output
DataByte 1 DataByte 2 • • • DataByte N, where N = dump length
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