ISD94100 Series Technical Reference Manual
Sep 9, 2019
Page
221
of 928
Rev1.09
IS
D
9
410
0
S
ER
IE
S
T
E
C
HN
ICA
L
RE
F
E
RE
NCE
M
AN
U
AL
CONFIG2 (Address = 0x0030_0008)
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
ALOCK
7
6
5
4
3
2
1
0
ALOCK
Bits
Descriptions
[31:16]
Reserved
Reserved bit should always be programmed with 1.
[15:0]
ALOCK
Advance Security Lock Control
Must be set to 0x5A5A for access to flash memory content. Any other value, flash memory
is locked. To unlock system a whole chip erase must be performed by ICP tool. Or user
code can perform ISP commands to set ALOCK to 0x5A5A. Purpose of ALOCK is to ensure
configuration is fully read from flash memory before ICE/ICP functions are enabled. ALOCK
provides multiple protection bits to protect against over/under voltage attack or UV attack.
Note:
The bits of configure should be 1 if reserved.