ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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HIRC Trim Value Register (SYS_RCADJ)
Register
Offset
R/W Description
Reset Value
SYS_RCADJ
0x110
R/W HIRC Trim Value Register
0x0000_0XXX
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
Reserved
RCADJ
7
6
5
4
3
2
1
0
RCADJ
Bits
Description
[31:10]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[9:0]
RCADJ
HIRC Trim Value (Write Protect)
This bit is the protected bit, which means programming it needs to write “59h”, “16h”, “88h”
to address 0x4000_0100 to disable register protection. Refer to the register SYS_REGLCTL
at address 0x100.
This field reflects the HIRC trim value.
Software can update HIRC trim value by writing this field.
Note:
This bit is write protected. Refer to the SYS_REGLCTL register.