ST92F124R1 STMicroelectronics, ST92F124R1 Datasheet - Page 133
ST92F124R1
Manufacturer Part Number
ST92F124R1
Description
8/16-bit Single Voltage Flash Mcu Family With Ram, E?? Emulated Eeprom , Can 2.0b And J1850 Blpd
Manufacturer
STMicroelectronics
Datasheet
1.ST92F124R1.pdf
(429 pages)
- Current page: 133 of 429
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Figure 64. Example of Low Power mode programming in WFI using CLOCK2/16
Interrupt
ST92F124/F150/F250 - RESET AND CLOCK CONTROL UNIT (RCCU)
CSU_CKSEL ← 1
Interrupt Routine
CSU_CKSEL ← 1
PROGRAM FLOW
User’s Program
User’s Program
WFI instruction
LPOWFI ← 1
MX[1:0] ← 01
DX[2:0] ← 000
WFI status
Begin
WAIT
WAIT
CLOCK2/16 selected and PLL
PLL is system clock source
PLL is system clock source
Low Power Mode enabled
No code is executed until
to 1, and PLL turned ON
an interrupt is requested
Wait for the PLL to lock
Execution of user program
Wait for the PLL to lock
stopped
resumes at full speed
PLL multiply factor
Wait For Interrupt
Divider factor set
CLOCK2 selected
Interrupt serviced
PLL switched on
in WFI state
Reset State
set to 6
activated
automatically
* T
1
= PLL lock-in time
F
Xtal
T
INTCLK FREQUENCY
T
1
1
= 4 MHz
*
*
125 KHz
12 MHz
2 MHz
12 MHz
2 MHz
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