User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 483 of 909 2019 Ambiq Micro, Inc.
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11.7.2.34ENCA Register
GPIO Enable Register A Clear
OFFSET: 0x000000B4
INSTANCE 0 ADDRESS: 0x400100B4
GPIO Enable Register A Clear
11.7.2.35ENCB Register
GPIO Enable Register B Clear
OFFSET: 0x000000B8
INSTANCE 0 ADDRESS: 0x400100B8
GPIO Enable Register B Clear
Table 689: ENSB 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 ENSB
Table 690: ENSB Register Bits
Bit Name Reset RW Description
31:18 RSVD 0x0 RO
RESERVED
17:0 ENSB 0x0 RW
Set the GPIO49-32 output enables
Table 691: ENCA 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
ENCA
Table 692: ENCA Register Bits
Bit Name Reset RW Description
31:0 ENCA 0x0 RW
Clear the GPIO31-0 output enables