User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 828 of 909 2019 Ambiq Micro, Inc.
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23.1.2.32MAINCNT1 Register
main Index Counter 1
OFFSET: 0x00000FFC
INSTANCE 0 ADDRESS: 0x00000FFC
Index counter for main or sbl_main firmware. Counter is used to indicate which pointer to reference,
MAINPTR1 or MAINPTR2
23.1.2.33CUSTKEKW0 Register
Customer KEK Word0
OFFSET: 0x00001800
INSTANCE 0 ADDRESS: 0x00001800
This is the Customer KEK Word0.
Table 1227: MAINCNT0 Register Bits
Bit Name Reset RW Description
31:0 INDXCNTR 0xffffffff
main Index Counter
Table 1228: MAINCNT1 Register
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
INDXCNTR
Table 1229: MAINCNT1 Register Bits
Bit Name Reset RW Description
31:0 INDXCNTR 0xffffffff
main Index Counter
Table 1230: CUSTKEKW0 Register
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
CUSTKEK_W0