Product Specs

14 UICR — User information configuration
registers
Page
66
Bit number
31 30
29
28
27
26
25
24
23 22 21 20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Id
A A
A
A
A
A
A
A
A A A A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Reset 0xFFFFFFFF
1 1
1
1
1
1
1
1
1 1 1 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Id
RW Field
Value Id
Value
Description
A RW CUSTOMER Reserved for customer
14.1.59 CUSTOMER[31]
Address offset: 0x0FC
Reserved for customer
Bit number
31 30
29
28
27
26
25
24
23 22 21 20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Id
A A
A
A
A
A
A
A
A A A A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Reset 0xFFFFFFFF
1 1
1
1
1
1
1
1
1 1 1 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Id
RW Field
Value Id
Value
Description
A RW CUSTOMER Reserved for customer
14.1.60 PSELRESET[0]
Address offset: 0x200
Mapping of the nRESET function (see POWER chapter for details)
All PSELRESET registers have to contain the same value for a pin mapping to be valid. If they don't, there
will be no nRESET function exposed on a GPIO, and the device will always start independently of the levels
present on any of the GPIOs.
Bit number
Id
Reset 0xFFFFFFFF
31 30
B
1 1
29
1
28
1
27
1
26
1
25
1
24
1
23 22 21 20
1 1 1 1
19
1
18
1
17
1
16
1
15
1
14
1
13
1
12
1
11
1
10
1
9
1
8
1
7
1
6
1
5
1
4
A
1
3
A
1
2
A
1
1
A
1
0
A
1
Id RW Field
Value Id
Value
Description
A RW PIN
21
GPIO number P0.n onto which Reset is exposed
B RW CONNECT
Disconnected
1
Connection
Disconnect
Connected
0
Connect
14.1.61 PSELRESET[1]
Address offset: 0x204
Mapping of the nRESET function (see POWER chapter for details)
All PSELRESET registers have to contain the same value for a pin mapping to be valid. If they don't, there
will be no nRESET function exposed on a GPIO, and the device will always start independently of the levels
present on any of the GPIOs.
Bit number
Id
Reset 0xFFFFFFFF
31 30
B
1 1
29
1
28
1
27
1
26
1
25
1
24
1
23 22 21 20
1 1 1 1
19
1
18
1
17
1
16
1
15
1
14
1
13
1
12
1
11
1
10
1
9
1
8
1
7
1
6
1
5
1
4
A
1
3
A
1
2
A
1
1
A
1
0
A
1
Id RW Field
Value Id
Value
Description
A RW PIN
21
GPIO number P0.n onto which Reset is exposed
B RW CONNECT
Disconnected
1
Connection
Disconnect
Connected
0
Connect
14.1.62 APPROTECT
Address offset: 0x208
Access Port protection