000-0046140-111
Page 133 of 169
SLG46140
Figure 83. Oscillator Block Diagram
CNT/
DLY/
FSM/
PWM_ramp
clk
0
1
2
3
4
5
6
7
8
9
10
11
12
reg<3:0>
CNT0/CNT1/CNT2/CNT3
DIV4
DIV12
DIV24
DIV64
DIV8
DIV256
cnt(x-1)_end
PWM/
DCMP/
clk
PWM0/PWM1/PWM2/
reg <610> / reg <599> / reg <598>
1
0
0
1
ADC
clk
reg <578>
0
1
2
3
DIV1/4/8/16
Ring Osc
(25 MHz)
reg <577:576>
Matrix Output <80>
CK_RINGOSC
CK_SPI_SCK
CK_ADC
DIV16
DIV1/2/4/16
LF Osc
(1.9 kHz)
reg <561:560>
Matrix Out
DIV1/2/4/8
RC Osc
(2 MHz,
25kHz)
reg <569:568>
Matrix IN0_50
Matrix Input <35>
1/2/4/3/8/12/24/64
cki
en
divs
reg <573:571>
reg <570>
cko
Regulator
(1.8 V)
PWR DOWN
Matrix Output <66>
Matrix Output <67>
CK_LFO
S
C
CK_PW
M
shared with
wake/sleep
oscillator
CK
_RCOSC
25 MHz