PIC32MZ memory map
sergev edited this page Dec 5, 2014
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Virtual memory map:
Address | Segment | Region |
---|---|---|
FFFFFFFF E0000000
|
kseg3 | Kernel space, mapped via TLB |
DFFFFFFF C0000000
|
kseg2 | Kernel space, mapped via TLB |
BFC73FFF BFC00000
|
kseg1 | Boot Flash (not cacheable) |
BF8FFFFF BF800000
|
kseg1 | Special function registers (not cacheable) |
BD1FFFFF BD000000
|
kseg1 | Program Flash (not cacheable) |
A007FFFF A0000000
|
kseg1 | RAM (not cacheable) |
9FC73FFF 9FC00000
|
kseg0 | Boot Flash (cacheable) |
9D1FFFFF 9D000000
|
kseg0 | Program Flash (cacheable) |
8007FFFF 80000000
|
kseg0 | RAM (cacheable) |
7FFFFFFF 00000000
|
kuseg | User space, mapped via TLB |
Physical memory map:
Address | Region |
---|---|
33FFFFFF 30000000
|
External memory via SQI |
23FFFFFF 20000000
|
External memory via EBI |
1FC73FFF 1FC00000
|
Boot Flash area |
1F8FFFFF 1F800000
|
Special function registers |
1D1FFFFF 1D000000
|
2 Mbytes of program Flash memory |
0007FFFF 00000000
|
512 kbytes of physical RAM |
Kernel virtual memory map:
Address | Size | Data | Description |
---|---|---|---|
a0000000 |
4 pages | __data_start, _gp | Start of .data section |
a0003xxx |
4 pages | _edata | Start of .bss section |
a0007xxx |
_end | End of .bss section | |
a0008000 |
2 pages | firstaddr | U area for process 0 |
a000a000 |
2 pages | nullproc.p_addr | U area for null process |
a000c000 |
640 bytes | callout | 40 entries |
a000c280 |
384 bytes | swapmap | 48 entries |
a000c400 |
896 bytes | swbuf | 8 entries |
a000c780 |
2016 bytes | buf | 18 entries |
a000cf60 |
5600 bytes | Sysmap | 1400 entries |
a000e540 |
1356 bytes | pv_table | 113 entries |
a000f000 |
1 page | vm_page_buckets | 128 entries, 1024 bytes |
a0010000 |
8 pages | kentry_data | 10 entries by 136 bytes, plus 500 entries by 56 bytes |
a0018000 |
1 page | vm_page_array | 102 entries, 4080 bytes |
a0019000 |
102 pages | avail_start | User memory |
a007f000 |
1 page | msgbufp | Message buffer |
a0080000 |
End of physical memory |