Electronic device having functional blocks individually controlled to selectively enter power-saving mode and related power control method thereof

摘要

An electronic device includes a first functional block, a second functional block, and a control circuit. The first functional block has a first wake-up guard time requirement. The second functional block has a second wake-up guard time requirement which is different from the first wake-up guard time requirement. The control circuit is coupled to the first functional block and the second functional block, and implemented for selectively controlling the first functional block to switch from a normal mode to a power-saving mode by referring to the first wake-up guard time requirement, and selectively controlling the second functional block to switch from the normal mode to the power-saving mode by referring to the second wake-up guard time requirement.