User Manual
Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 820 of 909 2019 Ambiq Micro, Inc.
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23.1.2.16SECURITYVERSION Register
Security version field
OFFSET: 0x00000040
INSTANCE 0 ADDRESS: 0x00000040
This 32-bit word contains the version ID used for revision control
23.1.2.17SECURITYSRAMRESV Register
SRAM Reserved for Application Scratch space
OFFSET: 0x00000050
INSTANCE 0 ADDRESS: 0x00000050
This 32-bit word indicates the amount of SRAM to keep reserved for application scratch space. This
reserves the specified memory at the top end of SRAM memory address range. This memory is not
disturbed by the Secure Boot Loader
15:12 RSVD1 0xf
Reserved
11:8 GPIOCFG 0xf
4 bit value representing the raw GPIOCFG bits for this pin
7:0 PADCFG 0xff
8 bit value representing the raw PADREG bits for this pin
Table 1196: SECURITYVERSION 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
VERSION
Table 1197: SECURITYVERSION Register Bits
Bit Name Reset RW Description
31:0 VERSION 0xffffffff
Version ID
Table 1198: SECURITYSRAMRESV 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
SRAM_RESV
Table 1195: SECURITYWIREDIFCCFG5 Register Bits
Bit Name Reset RW Description