Hardware Registers

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Revision as of 19:28, 20 January 2023 by Anonymous (Privacy policy) (Add usermode io remap info, add system timer range)
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0xBC000000 - 0xBC100000

Physical Address Size R/W Description
0xBC000000 4 RW Memory Protection 0x08000000 -> 0x081FFFFFF
Bit(s) Usage
31 0x081C0000 -> 0x081FFFFFF Kernel Write Enable
30 0x081C0000 -> 0x081FFFFFF Kernel Read Enable
29 0x081C0000 -> 0x081FFFFFF User Write Enable
28 0x081C0000 -> 0x081FFFFFF User Read Enable
27 0x08180000 -> 0x081BFFFFF Kernel Write Enable
26 0x08180000 -> 0x081BFFFFF Kernel Read Enable
25 0x08180000 -> 0x081BFFFFF User Write Enable
24 0x08180000 -> 0x081BFFFFF User Read Enable
23 0x08140000 -> 0x0817FFFFF Kernel Write Enable
22 0x08140000 -> 0x0817FFFFF Kernel Read Enable
21 0x08140000 -> 0x0817FFFFF User Write Enable
20 0x08140000 -> 0x0817FFFFF User Read Enable
19 0x08100000 -> 0x0813FFFFF Kernel Write Enable
18 0x08100000 -> 0x0813FFFFF Kernel Read Enable
17 0x08100000 -> 0x0813FFFFF User Write Enable
16 0x08100000 -> 0x0813FFFFF User Read Enable
15 0x080C0000 -> 0x080FFFFFF Kernel Write Enable
14 0x080C0000 -> 0x080FFFFFF Kernel Read Enable
13 0x080C0000 -> 0x080FFFFFF User Write Enable
12 0x080C0000 -> 0x080FFFFFF User Read Enable
11 0x08080000 -> 0x080BFFFFF Kernel Write Enable
10 0x08080000 -> 0x080BFFFFF Kernel Read Enable
9 0x08080000 -> 0x080BFFFFF User Write Enable
8 0x08080000 -> 0x080BFFFFF User Read Enable
7 0x08040000 -> 0x0807FFFFF Kernel Write Enable
6 0x08040000 -> 0x0807FFFFF Kernel Read Enable
5 0x08040000 -> 0x0807FFFFF User Write Enable
4 0x08040000 -> 0x0807FFFFF User Read Enable
3 0x08000000 -> 0x08003FFFF Kernel Write Enable
2 0x08000000 -> 0x08003FFFF Kernel Read Enable
1 0x08000000 -> 0x08003FFFF User Write Enable
0 0x08000000 -> 0x08003FFFF User Read Enable
Physical Address Size R/W Description
0xBC000004 4 RW Memory Protection 0x08200000 -> 0x083FFFFFF
Bit(s) Usage
31 0x083C0000 -> 0x083FFFFFF Kernel Write Enable
30 0x083C0000 -> 0x083FFFFFF Kernel Read Enable
29 0x083C0000 -> 0x083FFFFFF User Write Enable
28 0x083C0000 -> 0x083FFFFFF User Read Enable
27 0x083C0000 -> 0x083BFFFFF Kernel Write Enable
26 0x083C0000 -> 0x083BFFFFF Kernel Read Enable
25 0x08380000 -> 0x083BFFFFF User Write Enable
24 0x08380000 -> 0x083BFFFFF User Read Enable
23 0x08340000 -> 0x0837FFFFF Kernel Write Enable
22 0x08340000 -> 0x0837FFFFF Kernel Read Enable
21 0x08340000 -> 0x0837FFFFF User Write Enable
20 0x08340000 -> 0x0837FFFFF User Read Enable
19 0x08300000 -> 0x0833FFFFF Kernel Write Enable
18 0x08300000 -> 0x0833FFFFF Kernel Read Enable
17 0x08300000 -> 0x0833FFFFF User Write Enable
16 0x08300000 -> 0x0833FFFFF User Read Enable
15 0x082C0000 -> 0x082FFFFFF Kernel Write Enable
14 0x082C0000 -> 0x082FFFFFF Kernel Read Enable
13 0x082C0000 -> 0x082FFFFFF User Write Enable
12 0x082C0000 -> 0x082FFFFFF User Read Enable
11 0x08280000 -> 0x082BFFFFF Kernel Write Enable
10 0x08280000 -> 0x082BFFFFF Kernel Read Enable
9 0x08280000 -> 0x082BFFFFF User Write Enable
8 0x08280000 -> 0x082BFFFFF User Read Enable
7 0x08240000 -> 0x0827FFFFF Kernel Write Enable
6 0x08240000 -> 0x0827FFFFF Kernel Read Enable
5 0x08240000 -> 0x0827FFFFF User Write Enable
4 0x08240000 -> 0x0827FFFFF User Read Enable
3 0x08200000 -> 0x08203FFFF Kernel Write Enable
2 0x08200000 -> 0x08203FFFF Kernel Read Enable
1 0x08200000 -> 0x08203FFFF User Write Enable
0 0x08200000 -> 0x08203FFFF User Read Enable
Physical Address Size R/W Description
0xBC000008 4 RW Memory Protection 0x08400000 -> 0x085FFFFFF
Bit(s) Usage
31 0x085c0000 -> 0x085FFFFFF Kernel Write Enable
30 0x085c0000 -> 0x085FFFFFF Kernel Read Enable
29 0x085c0000 -> 0x085FFFFFF User Write Enable
28 0x085c0000 -> 0x085FFFFFF User Read Enable
27 0x08580000 -> 0x085BFFFFF Kernel Write Enable
26 0x08580000 -> 0x085BFFFFF Kernel Read Enable
25 0x08580000 -> 0x085BFFFFF User Write Enable
24 0x08580000 -> 0x085BFFFFF User Read Enable
23 0x08540000 -> 0x0857FFFFF Kernel Write Enable
22 0x08540000 -> 0x0857FFFFF Kernel Read Enable
21 0x08540000 -> 0x0857FFFFF User Write Enable
20 0x08540000 -> 0x0857FFFFF User Read Enable
19 0x08500000 -> 0x0853FFFFF Kernel Write Enable
18 0x08500000 -> 0x0853FFFFF Kernel Read Enable
17 0x08500000 -> 0x0853FFFFF User Write Enable
16 0x08500000 -> 0x0853FFFFF User Read Enable
15 0x084c0000 -> 0x084FFFFFF Kernel Write Enable
14 0x084c0000 -> 0x084FFFFFF Kernel Read Enable
13 0x084c0000 -> 0x084FFFFFF User Write Enable
12 0x084c0000 -> 0x084FFFFFF User Read Enable
11 0x08480000 -> 0x084BFFFFF Kernel Write Enable
10 0x08480000 -> 0x084BFFFFF Kernel Read Enable
9 0x08480000 -> 0x084BFFFFF User Write Enable
8 0x08480000 -> 0x084BFFFFF User Read Enable
7 0x08440000 -> 0x0847FFFFF Kernel Write Enable
6 0x08440000 -> 0x0847FFFFF Kernel Read Enable
5 0x08440000 -> 0x0847FFFFF User Write Enable
4 0x08440000 -> 0x0847FFFFF User Read Enable
3 0x08400000 -> 0x08403FFFF Kernel Write Enable
2 0x08400000 -> 0x08403FFFF Kernel Read Enable
1 0x08400000 -> 0x08403FFFF User Write Enable
0 0x08400000 -> 0x08403FFFF User Read Enable
Physical Address Size R/W Description
0xBC00000C 4 RW Memory Protection 0x08600000 -> 0x087FFFFFF
Bit(s) Usage
31 0x087c0000 -> 0x087FFFFFF Kernel Write Enable
30 0x087c0000 -> 0x087FFFFFF Kernel Read Enable
29 0x087c0000 -> 0x087FFFFFF User Write Enable
28 0x087c0000 -> 0x087FFFFFF User Read Enable
27 0x08780000 -> 0x087BFFFFF Kernel Write Enable
26 0x08780000 -> 0x087BFFFFF Kernel Read Enable
25 0x08780000 -> 0x087BFFFFF User Write Enable
24 0x08780000 -> 0x087BFFFFF User Read Enable
23 0x08740000 -> 0x0877FFFFF Kernel Write Enable
22 0x08740000 -> 0x0877FFFFF Kernel Read Enable
21 0x08740000 -> 0x0877FFFFF User Write Enable
20 0x08740000 -> 0x0877FFFFF User Read Enable
19 0x08700000 -> 0x0873FFFFF Kernel Write Enable
18 0x08700000 -> 0x0873FFFFF Kernel Read Enable
17 0x08700000 -> 0x0873FFFFF User Write Enable
16 0x08700000 -> 0x0873FFFFF User Read Enable
15 0x086c0000 -> 0x086FFFFFF Kernel Write Enable
14 0x086c0000 -> 0x086FFFFFF Kernel Read Enable
13 0x086c0000 -> 0x086FFFFFF User Write Enable
12 0x086c0000 -> 0x086FFFFFF User Read Enable
11 0x08680000 -> 0x086BFFFFF Kernel Write Enable
10 0x08680000 -> 0x086BFFFFF Kernel Read Enable
9 0x08680000 -> 0x086BFFFFF User Write Enable
8 0x08680000 -> 0x086BFFFFF User Read Enable
7 0x08640000 -> 0x0867FFFFF Kernel Write Enable
6 0x08640000 -> 0x0867FFFFF Kernel Read Enable
5 0x08640000 -> 0x0867FFFFF User Write Enable
4 0x08640000 -> 0x0867FFFFF User Read Enable
3 0x08600000 -> 0x08603FFFF Kernel Write Enable
2 0x08600000 -> 0x08603FFFF Kernel Read Enable
1 0x08600000 -> 0x08603FFFF User Write Enable
0 0x08600000 -> 0x08603FFFF User Read Enable

Granularity that these work on is not known. For each 1 bit an IO range is exposed to usermode for Read/Write. To find the usermode address, subtract 0x60000000 from the kernelmode one.

Physical Address Size R/W Description
0xBC000030-0xBC00004C 32 RW IO Register Usermode Remap (Subtract 0x60000000)

0xBC600000 - 0xBC700000

Physical Address Size R/W Description
0xBC600000 32 RW System time in microseconds. Wraps around every 1.1 hours? 0xBC600004 32 RW Alarm time, raises interrupt (19?) when system time hits this number 0xBC600008 32 RW Unknown, typically 0x30 but can be written 0xBC60000C 32 RW Unknown, typically 1 but can be written. (Writing 0 caused a hang, maybe disables timer incrementing?) 0xBC600010 32 RW Unknown, typically 0