ST92141 STMicroelectronics, ST92141 Datasheet - Page 72

• Manufacturer Part Number: ST92141
• Description: 8/16-bit Mcu For 3-phase Ac Motor Control
• Manufacturer: STMicroelectronics

ST92141 - RESET AND CLOCK CONTROL UNIT (RCCU)
Figure 32. RCCU Timing during STOP (CK_AF System Clock)
Figure 33. Low Power WFI Mode with a Stopped Quartz Oscillator
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(*) from WUIMU
(**) +/- 1 T
1
INTCLK
CK_AF
request (*)
clock
STOP
clock
Xtal
Xtal
Multiplier
INTCLK
CK_AF
clock
clock
clock
Xtal
With: DIV2=1
20478 x T
PLL
Xtal
(**)
Exit from
RESET
(T
WFI state
sys
=16* T
Interrupt
selected
CK_AF
CK_AF
CKAF_SEL<-1
)
Xtal’s restart time PLL Lock-in time
(T
Acknowledged
4 xT
sys
STOP
XTSTOP<-0
sys
= T
CK_AF
)
start-up
Quartz
10239*CLOCK2
CKAF_SEL<-0
T
sys
=2 xT
Xtal
CSU_CKSEL<-1
PLL
l