User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 484 of 909 2019 Ambiq Micro, Inc.
All rights reserved.
11.7.2.36STMRCAP Register
STIMER Capture Control
OFFSET: 0x000000BC
INSTANCE 0 ADDRESS: 0x400100BC
STIMER Capture trigger select and enable.
Table 693: ENCB 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
RSVD ENCB
Table 694: ENCB Register Bits
Bit Name Reset RW Description
31:18 RSVD 0x0 RO
RESERVED
17:0 ENCB 0x0 RW
Clear the GPIO49-32 output enables
Table 695: STMRCAP 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
RSVD
STPOL3
STSEL3
RSVD
STPOL2
STSEL2
RSVD
STPOL1
STSEL1
RSVD
STPOL0
STSEL0
Table 696: STMRCAP Register Bits
Bit Name Reset RW Description
31 RSVD 0x0 RO
RESERVED
30 STPOL3 0x0 RW
STIMER Capture 3 Polarity.
CAPLH = 0x0 - Capture on low to high GPIO transition
CAPHL = 0x1 - Capture on high to low GPIO transition
29:24 STSEL3 0x3f RW
STIMER Capture 3 Select.
23 RSVD 0x0 RO
RESERVED