User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 824 of 909 2019 Ambiq Micro, Inc.
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23.1.2.24COPYPROTECTSBLL Register
Flash copy/read-protection bits.
OFFSET: 0x00000A00
INSTANCE 0 ADDRESS: 0x00000A00
These bits read-protect flash in 16KB chunks.
23.1.2.25COPYPROTECTSBLH Register
Flash copy/read-protection bits.
OFFSET: 0x00000A04
INSTANCE 0 ADDRESS: 0x00000A04
These bits read-protect flash in 16KB chunks. Only SBL can override these through Secure OTA
Table 1211: WRITEPROTECTSBLH Register Bits
Bit Name Reset RW Description
31:0 CHUNKS 0xffffffff
Write protect flash 0x00080000 - 0x000FFFFF. Each bit provides write pro-
tection for 16KB chunks of flash data space.
Table 1212: COPYPROTECTSBLL 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
CHUNKS
Table 1213: COPYPROTECTSBLL Register Bits
Bit Name Reset RW Description
31:0 CHUNKS 0xffffffff
Copy (read) protect flash 0x00000000 - 0x0007FFFF. Each bit provides
read protection for 16KB chunks of flash.
Table 1214: COPYPROTECTSBLH 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
CHUNKS