User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 815 of 909 2019 Ambiq Micro, Inc.
All rights reserved.
23.1.2.9 SECURITYWIREDCFG Register
Security Wired configuration bits
OFFSET: 0x00000024
INSTANCE 0 ADDRESS: 0x00000024
This 32-bit word contains the configuration for the wired update interface.
Table 1180: SECURITYOVR 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
POL
GPIO
Table 1181: SECURITYOVR Register Bits
Bit Name Reset RW Description
31:8 RSVD 0xffffff
Reserved
7POL 0x1
GPIO polarity to indicate update.
POL_HIGH = 0x1 - Polarity set to High or Logic 1
POL_LOW = 0x0 - Polarity set to Low or Logic 0
6:0 GPIO 0x7f
GPIO port to be used to indicate forced update. A value of 0x7F disables
this feature.
Table 1182: SECURITYWIREDCFG 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
TIMEOUT I2CADDR SLVINTPIN IFC
Table 1183: SECURITYWIREDCFG Register Bits
Bit Name Reset RW Description
31:16 TIMEOUT 0xffff
Timeout for wired interface poll (in milliseconds)
15:9 I2CADDR 0x7f
I2C Address
8:3 SLVINTPIN 0x3f
Slave interrupt pin