
4-44
Configuration Registers
4.3.48
High-Speed to Low-Speed Timer Register (Index 83h)
This read/write register is used to program the time-out period from High-Speed PLL
mode to Low-Speed PLL mode. The minimum period is 1512 s. The maximum period is
15.94 s. A value of 00h disables the PMU timer. If any activities are detected during the
timer counting period, the PMU timer is reset to 00h automatically.
Note:
The timer granularity can be changed to 116 s by setting bit 6 of the PMU Control 2 register at Index AFh.
Low-Speed to Doze Timer Register (Index 84h)
This read/write register is used to program the time-out period from Low-Speed PLL
mode to Doze mode. The minimum period is 116 s; the maximum is 63.75 s. A value of
00h disables the PMU timer. If any activities are detected during the timer counting
period, the PMU timer is reset to 00h automatically and returns to High-Speed PLL mode.
4.3.49
Note:
The timer granularity can be changed to 14 s by setting bit 7 of the PMU Control 2 register at Index AFh.
Doze to Sleep Timer Register (Index 85h)
This read/write register is used to program the time-out period from Doze mode to Sleep
mode. The minimum period is 4 s; the maximum is 1024 s. A value of 00h disables the
PMU timer. If any activities are detected during the timer counting period, the PMU timer
is reset to 00h automatically and returns to High-Speed PLL mode.
4.3.50
4.3.51
Sleep to Suspend Timer Register (Index 86h)
This read/write register is used to program the time-out period from Sleep mode to Sus-
pend mode. The minimum period is 116 s; the maximum is 16 s. A value of 00h disables
the PMU timer. If a wake-up or the Resume key is detected during the timer counting
period, the PMU timer is reset to 00h automatically and the system returns to High-Speed
PLL mode.
7
0
Field
Default
Time-Out Period in Multiples of 1512 s or 116 s
0
0
0
0
0
0
0
0
7
0
Field
Default
Time-Out Period in Multiples of 116 s or 14 s
0
0
0
0
0
0
0
0
7
0
Field
Default
Time-Out Period in Multiples of 4 s
0
0
0
0
0
0
0
0
7
0
Field
Default
Time-Out Period in Multiples of 116 s
0
0
0
0
0
0
0
0