User Manual
112
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
System Control Unit - Digital Modules (SCU-DM)
7.3.6.3
System Clock Control Registers
The clock source for the system is selected via register SYSCON0.
System Control Register 0
SCU_SYSCON0
Offset
Reset Value
System Control Register 0
070
H
Field
Bits
Type
Description
RES
31:8
r
Reserved
Returns 0 if read; should be written with 0.
SYSCLKSEL
7:6
rw
System Clock Select
Note:
This is a PASSWD protected bit. When the
protection scheme (see
activated (default), this bit cannot be written
directly.
This bit field defines the clock source that is used as
system clock for the system operation.
Note:
In normal application, it is expected that the
system is running on the PLL clock output.
00
B
The PLL clock output signal
f
PLL
is used
01
B
The direct clock input from
f
OSC
is used
10
B
The direct low-precision clock input from
f
LP_CLK
is
used.
11
B
The direct input from internal oscillator
f
INTOSC
is
used
31
16
r
RES
15
8
r
RES
7
6
rw
SYSCLKS
EL
5
4
r
NVMCLKF
AC
3
0
r
RES