User Manual
Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 116 of 909 2019 Ambiq Micro, Inc.
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3.7.2.38 PID4 Register
Peripheral Identification Register 4
OFFSET: 0x00000FD0
INSTANCE 0 ADDRESS: 0xE0000FD0
Peripheral Identification Register 4
3.7.2.39 PID5 Register
Peripheral Identification Register 5
OFFSET: 0x00000FD4
INSTANCE 0 ADDRESS: 0xE0000FD4
Peripheral Identification Register 5
1 ACCESS 0x0 RO
Write access to component is blocked. All writes are ignored, reads are per-
mitted.
0 PRESENT 0x1 RO
Indicates that a lock mechanism exists for this component.
Table 106: PID4 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
PID4
Table 107: PID4 Register Bits
Bit Name Reset RW Description
31:0 PID4 0x4 R0
Peripheral Identification 4.
Table 108: PID5 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
PID5
Table 105: LOCKSREG Register Bits
Bit Name Reset RW Description