MC912DG128A Motorola, MC912DG128A Datasheet - Page 284

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

msCAN12
SOFT_RESET Mode
MSCAN Controller
MC68HC912DT128A Rev 2.0
284
as well as pending message aborts and pending message
transmissions, will now be executed. If the msCAN12 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 msCAN12 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 (CMCR0)
mode.
When setting the SFTRES bit, the msCAN12 immediately stops all
ongoing transmissions and receptions, potentially causing the CAN
protocol violations. The user is responsible to take care that the
msCAN12 is not active when SOFT_RESET mode is entered. The
recommended procedure is to bring the msCAN12 into SLEEP mode
before the SFTRES bit is set.
or msCAN12
MCU
msCAN12 Sleeping
Figure 46 SLEEP Request / Acknowledge Cycle
SLPRQ = 1
SLPAK = 1
MSCAN Controller
for a complete description of the SOFT_RESET
msCAN12 Running
SLPRQ = 0
msCAN12
SLPAK = 0
msCAN12 Module Control
SLEEP Request
SLPRQ = 1
SLPAK = 0
MCU
MOTOROLA
16-mscan12