mc68hc711k4 Freescale Semiconductor, Inc, mc68hc711k4 Datasheet - Page 129

• Manufacturer Part Number: mc68hc711k4
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

5.8 Low-Power Operation
M68HC11K Family
MOTOROLA
VALID SCI REQUEST
Figure 5-10. Interrupt Priority Resolution Within SCI System
RDRF = 1?
TDRE = 1?
IDLE = 1?
OR = 1?
TC = 1?
BEGIN
FLAG
N
N
N
N
N
NO
The MCU contains two software instructions, WAIT and STOP, to
reduce power consumption when processing is not required. Both
instructions suspend operation until a reset or interrupt occurs while
retaining register and RAM contents. The wait condition suspends
processing, reducing power consumption to an intermediate level. The
stop condition turns off all on-chip clocks as well and reduces power
consumption to an absolute minimum.
Y
Y
Y
Y
Y
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Resets and Interrupts
ILIE = 1?
RIE = 1?
TIE = 1?
N
N
N
Y
Y
Y
TCIE = 1?
RE = 1?
RE = 1?
TE = 1?
N
N
N
N
VALID SCI REQUEST
Y
Y
Y
Y
Low-Power Operation
Resets and Interrupts
Technical Data
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