ST6209C STMicroelectronics, ST6209C Datasheet - Page 35

• Manufacturer Part Number: ST6209C
• Description: 8 Bit ST6 Microcontroller with 4x8-bitADC 1x8-bit TIMER
• Manufacturer: STMicroelectronics

Specifications of ST6209C

• Clock Sources: crystal/ceramic resonator or RC network, external clock, backup oscillator (LFAO)
• 2 Power Saving Modes: Wait and Stop

STOP MODE (Cont’d)
Figure 22. STOP Mode Flowchart
Notes:
1. EXCTNL is an option bit. See option byte section for more details.
2. Peripheral clocked with an external clock source can still be active.
3. Only some specific interrupts can exit the MCU from STOP mode (such as external interrupt). Refer to
the Interrupt Mapping table for more details.
N
INTERRUPT
OSCILLATOR
Clock to PERIPHERALS
Clock to CPU
N
Y
VALUE
EXCTNL
RESET
0
1)
Y
0
Yes
On
No
1
STOP INSTRUCTION
NMI PIN
LEVEL
ON
N
INTERRUPT
ST6208C/ST6209C/ST6210C/ST6220C
Y
1
ENABLE
3)
OSCILLATOR
Clock to PERIPHERALS
Clock to CPU
OSCILLATOR
Clock to PERIPHERALS
Clock to CPU
OSCILLATOR
Clock to PERIPHERALS
Clock to CPU
OR SERVICE INTERRUPT
FETCH RESET VECTOR
CLOCK CYCLE
N
WATCHDOG
RESET
Y
2048
DISABLE
DELAY
Restart
2)
Yes
Yes
Yes
Yes
Off
No
No
On
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