Maxim Integrated MAXQ20-Based Microcontroller Bootloader Command Reference - Manual (Page 8)

MAXQ20-Based Microcontroller Bootloader Command Reference
8
Family 2 Commands—Dump Variable Length
Command 20h—Dump Code Variable Length
Byte1 Byte2 Byte3 Byte4 Byte5 Byte6
(Length)
Bytes
Byte
Length+7
Input (to dump
< 256 units)
20h 1 AddrL AddrH Length 00h 00h... 00h
Output Memory
contents
03Eh
Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7
(Length)
Bytes
Byte
Length+8
Input (to dump
256+ units)
20h 2 AddrL AddrH LenL LenH 00h 00h... 00h
Output Memory
contents
03Eh
This command has a slightly different format depending on the length of the dump requested. It returns the
contents of the program flash memory – (Length) or (LenH:LenL) bytes starting at byte address (AddrH:AddrL).
“Units” is either bytes or words, depending on which mode is currently selected.
Command 21h—Dump Data Variable Length
Byte1 Byte2 Byte3 Byte4 Byte5 Byte6
(Length)
Bytes
Byte
Length+7
Input (to dump
< 256 units)
21h 1 AddrL AddrH Length 00h 00h... 00h
Output Memory
contents
03Eh
Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7
(Length)
Bytes
Byte
Length+8
Input (to dump
256+ units)
21h 2 AddrL AddrH LenL LenH 00h 00h... 00h
Output Memory
contents
03Eh
This command has a slightly different format depending on the length of the dump requested. It returns the
contents of the data SRAM – (Length) or (LenH:LenL) bytes starting at byte address (AddrH:AddrL). “Units” is
either bytes or words, depending on which mode is currently selected.