Freescale Semiconductor MPC8313E PowerQUICC II Pro Family Reference Manual page 274

System Configuration
5.8.1 External Signal Description
Table 5-65 describes the power management signals.
Table 5-65. System Control Signals—Detailed Signal Descriptions
Signal I/O
QUIESCE O Quiesce state. Indicates that the processor system and PowerPC core are in low power state.
State
Meaning
Timing The timing between a quiesce request from the PowerPC core and the assertion of the external
EXT_PWR_ O External power control. Enables the external switch to provide power to the device.
CTRL
State
Meaning
Timing —
PMC_PWR_ I Stable power. Indicates whether the power supply on the board is stable.
OK
State
Meaning
Timing —
5.8.2 PMC Memory Map/Register Definition
Table 5-66 shows the memory map for the power management controller registers.
Table 5-66. Power Management Controller Registers Memory Map
Offset
0x00B00 Power management controller configuration register (PMCCR)
0x00B04 Power management controller event register (PMCER)
0x00B08 Power management controller mask register (PMCMR)
0x00B0C Power management controller configuration register 1 (PMCCR1)
0x00B10 Power management controller configuration register 2 (PMCCR2)
0x00B14– Reserved
0x00BFC
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
5-66
Asserted—The system and PowerPC core are in low power state.
Negated—The system and PowerPC core are not in low power state.
indication or between negation of the core's quiesce request and negation of the external
indication depends on the current state of the internal system units and may vary accordingly.
Asserted—Power is supplied to the switchable power supply.
Negated—Power is removed from the switchable power supply.
Asserted—The external power supply is stable to specifications.
Negated—The external power supply is off or not stable to specifications.
Register
Description
Access
R/W
R/W
R/W
R/W
R/W
—
Reset Section/Page
0x0000_0000 5.8.2.1/5-67
0x0000_0000 5.8.2.2/5-68
0x0000_0000 5.8.2.3/5-70
0x0000_0000 5.8.2.4/5-70
0x0002_0002 5.8.2.5/5-72
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