MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 362

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MSCAN08 Controller (MSCAN08)
21.9.2 MSCAN08 Soft Reset Mode
Advance Information
362
NOTE:
The MCU cannot clear the SLPRQ bit before the MSCAN08 is in Sleep
mode (SLPAK=1).
After wake-up, the MSCAN08 waits for 11 consecutive recessive bits to
synchronize to the bus. As a consequence, if the MSCAN08 is woken-
up by a CAN frame, this frame is not received. The receive message
buffers (RxFG and RxBG) contain messages if they were received
before Sleep mode was entered. All pending actions are executed upon
wake-up: copying of RxBG into RxFG, message aborts and message
transmissions. If the MSCAN08 is still in bus-off state after Sleep mode
was left, it continues counting the 128*11 consecutive recessive bits.
In Soft Reset mode, the MSCAN08 is stopped. Registers can still be
accessed. This mode is used to initialize the module configuration, bit
timing and the CAN message filter. See
Register 0
mode.
or MSCAN08
MSCAN08 Controller (MSCAN08)
Figure 21-6. Sleep Request/Acknowledge Cycle
MCU
on page 377 for a complete description of the Soft Reset
MSCAN08 Sleeping
SLPRQ = 1
SLPAK = 1
MSCAN08 Running
SLPRQ = 0
SLPAK = 0
MSCAN08
MSCAN08 Module Control
MC68HC08AZ60A — Rev 0.0
Sleep Request
SLPRQ = 1
SLPAK = 0
MCU
MOTOROLA