User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 681 of 909 2019 Ambiq Micro, Inc.
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14.2.2.14SCAPT2 Register
Capture Register C
OFFSET: 0x000001E8
INSTANCE 0 ADDRESS: 0x400081E8
The STIMER capture Register C grabs the VALUE in the COUNTER register whenever capture condition
(event) C is asserted. This register holds a time stamp for the event.
14.2.2.15SCAPT3 Register
Capture Register D
OFFSET: 0x000001EC
INSTANCE 0 ADDRESS: 0x400081EC
The STIMER capture Register D grabs the VALUE in the COUNTER register whenever capture condition
(event) D is asserted. This register holds a time stamp for the event.
Table 979: SCAPT1 Register Bits
Bit Name Reset RW Description
31:0 SCAPT1 0x0 RO
Whenever the event is detected, the value in the COUNTER is copied into
this register and the corresponding interrupt status bit is set.
Table 980: SCAPT2 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
SCAPT2
Table 981: SCAPT2 Register Bits
Bit Name Reset RW Description
31:0 SCAPT2 0x0 RO
Whenever the event is detected, the value in the COUNTER is copied into
this register and the corresponding interrupt status bit is set.
Table 982: SCAPT3 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
SCAPT3