MC9S08DZ16 FREESCALE [Freescale Semiconductor, Inc], MC9S08DZ16 Datasheet - Page 263

• Manufacturer Part Number: MC9S08DZ16
• Description: 8-Bit HCS08 Central Processor Unit (CPU)
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

12.5.5.1
As shown in
run mode.
12.5.5.2
The WAIT instruction puts the MCU in a low power consumption stand-by mode. If the CSWAI bit is set,
additional power can be saved in power down mode because the CPU clocks are stopped. After leaving
this power down mode, the MSCAN restarts its internal controllers and enters normal mode again.
While the CPU is in wait mode, the MSCAN can be operated in normal mode and generate interrupts
(registers can be accessed via background debug mode). The MSCAN can also operate in any of the
low-power modes depending on the values of the SLPRQ/SLPAK and CSWAI bits as seen in
12.5.5.3
The STOP instruction puts the MCU in a low power consumption stand-by mode. In stop1 or stop2 modes,
the MSCAN is set in power down mode regardless of the value of the SLPRQ/SLPAK. In stop3 mode,
power down or sleep modes are determined by the SLPRQ/SLPAK values set prior to entering stop3.
CSWAI bit has no function in any of the stop
Freescale Semiconductor
1
2
‘X’ means don’t care.
For a safe wake up from Sleep mode, SLPRQ and SLPAK must be set to 1 before going into Stop3 mode.
CPU Mode
Stop1 or 2
Stop3
Wait
Run
Table
Operation in Run Mode
Operation in Wait Mode
Operation in Stop Mode
12-36, only MSCAN sleep mode is available as low power option when the CPU is in
CSWAI = X
SLPRQ = 0
SLPRQ = 0
CSWAI = 0
SLPAK = 0
SLPAK = 0
Table 12-36. CPU vs. MSCAN Operating Modes
Normal
MC9S08DZ60 Series Data Sheet, Rev. 4
1
modes.Table
CSWAI = X
SLPRQ = 1
SLPRQ = 1
SLPRQ = 1
CSWAI = X
CSWAI = 0
SLPAK = 1
SLPAK = 1
SLPAK = 1
Sleep
Chapter 12 Freescale’s Controller Area Network (S08MSCANV1)
MSCAN Mode
2
Reduced Power Consumption
12-36.
Power Down
SLPRQ = X
SLPRQ = X
CSWAI = X
SLPRQ = 0
CSWAI = X
CSWAI = 1
SLPAK = X
SLPAK = X
SLPAK = 0
SLPRQ = X
SLPRQ = X
SLPRQ = X
SLPRQ = X
CSWAI = X
CSWAI = X
CSWAI = X
CSWAI = X
SLPAK = X
SLPAK = X
SLPAK = X
SLPAK = X
(CANE=0)
Disabled
Table
12-36.
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