Users Guide: Network Microcontroller Supplement User Manual

2. rom_redirect_init Copies the redirect call table from ROM to external memory 0100h–017Fh.
3. ---- SETB EPFI instruction enables power-fail interrupt
4. ---- Prints part of the opening message "DS80C400 Silicon Software"
5. ---- Clears internal direct memory (scratchpad) 00h–FFh
6. ---- Clears external system xdata memory between 0180h–(start address of BLOB - 1) that is used for
network and task manager data structures.
7. mm_init Initialize heap memory according to upper/lower bound addresses passed to
r
om_init. If the default heap-memory allocation is used, the address range is ~(start address of
BLOB +1000h) – FFFFh.
8. km_init Initialize kernel memory
9. ---- Prints more of the opening message "- Copyright (C) "
10. ---- Internal functions to manipulate the 1-Wire bus, make timing measurements, and calculate an
appropriate setting for the 1-Wire clock divisor r
egister.
11. ow_init Initialize 1-Wire master. As an input parameter, the ow_init function requir
es that ACC contain the
desired value to program into the 1-Wire clock divisor register. If ow_init is called as part of the
rom_init function, this input parameter is passed automatically from the previous internal functions.
12. network_init Initialize network layer
13. ---- Prints more of the opening message "S/N: "
14. eth_init Initialize driver
15. ---- Prints the 8-byte serial number "NNNNNNNNNNNNNNNN"
16. init_sockets Initialize socket layer
17. ---- Prints more of the opening message "MAC ID: "
18. tick_init Initialize Timer0 periodic interrupt
19. ---- Prints the 6-byte MAC address "MMMMMMMMMMMM"
20. task_genesis Initialize scheduler and create an idle thread
21. ---- SETB EA enables interrupts
*The function call rom_init takes car
e of all required initialization. This includes copying the interrupt vector table (rom_copyivt) and
function redirect table (rom_redirect_init), as well as calling all of the above initialization routines. The rom_init function also prints a
copyright message. No extended documentation of these functions is curr
ently available.
High-Speed Microcontroller User’s
Guide: Network Microcontroller
Supplement
215
Maxim Integrated