mc9s08ac32 Freescale Semiconductor, Inc, mc9s08ac32 Datasheet - Page 39

• Manufacturer Part Number: mc9s08ac32
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

commands are available.
background debug mode is enabled.
3.6.4
The LVD system is capable of generating either an interrupt or a reset when the supply voltage drops below
the LVD voltage. If the LVD is enabled in stop by setting the LVDE and the LVDSE bits, then the voltage
regulator remains active during stop mode. If the user attempts to enter stop2 with the LVD enabled for
stop, the MCU will instead enter stop3.
LVD is enabled.
3.6.5
When the MCU enters any stop mode, system clocks to the internal peripheral modules are stopped. Even
in the exception case (ENBDM = 1), where clocks to the background debug logic continue to operate,
clocks to the peripheral systems are halted to reduce power consumption. Refer to
Mode,” and
Freescale Semiconductor
Mode
Stop3
Mode
Stop3
LVD Enabled in Stop Mode
On-Chip Peripheral Modules in Stop Modes
Section 3.6.2, “Stop3
PPDC
PPDC
x
x
CPU
RAM
FLASH
Parallel Port Registers
ADC
ICG
IIC
RTI
CPU, Digital
Peripherals,
CPU, Digital
Peripherals,
Standby
Standby
FLASH
FLASH
Table 3-2
Peripheral
Table 3-2. BDM Enabled Stop Mode Behavior
Table 3-3. LVD Enabled Stop Mode Behavior
Mode,” for specific information on system behavior in stop modes.
MC9S08AC60 Series Data Sheet, Rev. 2
summarizes the behavior of the MCU in stop when entry into the
Standby
Standby
RAM
RAM
Table 3-4. Stop Mode Behavior
Table 3-3
Active
ICG
ICG
Off
summarizes the behavior of the MCU in stop when the
Optionally on
Standby
Optionally on
Optionally on
Stop2
Off
Off
Off
Off
Off
Off
ADC
ADC
3
Mode
Regulator
Regulator
Active
Active
Optionally On
Optionally On
Optionally on
Standby
Standby
Standby
Standby
Standby
Stop3
I/O Pins
I/O Pins
States
States
held
held
Chapter 3 Modes of Operation
Section 3.6.1, “Stop2
3
1
2
Optionally on
Optionally on
RTI
RTI
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