TC1796
System Units (Vol. 1 of 2)
System Control Unit
User’s Manual 5-7 V2.0, 2007-07
SCU, V2.0
5.1.3.3 States of TC1796 Units in Power Management Modes
Table 5-2 summarizes the state of the various units of the TC1796 during Run Mode,
Idle Mode, and Sleep Mode.
Table 5-2 States of TC1796 Units in Power Management Modes
Unit Run Mode Idle Mode Sleep Mode
Main Oscillator
& PLL
On On On
CPU Executing Idle Idle
DMI & PMI Active Idle, but accessible Idle, but accessible
DMU & PMU Active Accessible Accessible
Flash Module Active Active Powered down
Watchdog Timer Functioning as
programmed
Functioning as
programmed
Functioning as
programmed
FPI Bus
Peripherals
Functioning as
programmed
Functioning as
programmed
Peripherals with
suspend enabled are
shut down
Debug Units Functioning Functioning Functioning
External Bus
Controller (EBU)
Functioning as
programmed
Functioning as
programmed
Functioning as
programmed
Ports Functioning as
programmed
Functioning as
programmed
Functioning as
programmed
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