User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 825 of 909 2019 Ambiq Micro, Inc.
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23.1.2.26MAINPTR0 Register
main firmware pointer 0
OFFSET: 0x00000C00
INSTANCE 0 ADDRESS: 0x00000C00
This is the main/sbl_main firmware pointer 0 referenced by sbl_init for pointing to the main or sbl_main
base address
23.1.2.27MAINPTR1 Register
main firmware pointer 1
OFFSET: 0x00000C04
INSTANCE 0 ADDRESS: 0x00000C04
This is the main/sbl_main firmware pointer 1 referenced by sbl_init for pointing to the main or sbl_main
base address
Table 1215: COPYPROTECTSBLH Register Bits
Bit Name Reset RW Description
31:0 CHUNKS 0xffffffff
Copy (read) protect flash 0x00080000 - 0x000FFFFF. Each bit provides
read protection for 16KB chunks of flash.
Table 1216: MAINPTR0 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
PTR0
Table 1217: MAINPTR0 Register Bits
Bit Name Reset RW Description
31:0 PTR0 0xffffffff
main pointer 0
Table 1218: MAINPTR1 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
PTR1