Clock control system
AssigneeSeiko Epson Corporation
InventorsMakoto Kudo, Keisuke Hashimoto
Life of this patent
Estimating the term…
Abstract
To save power by supplying minimum clocks required for respective blocks. In a clock control system that supplies clocks to a plurality of blocks such as a CPU 4, a bus 5, a peripheral circuit 6 and other circuits 7, a clock supplied from a clock oscillator 1 is supplied to clock control sections 8a, 8b, 8c and 8d that are connected to the blocks 4, 5, 6 and 7, respectively, wherein the clock is converted by the clock control sections 8a, 8b, 8c and 8d into clocks with minimum clock numbers required for operating the blocks 4, 5, 6 and 7, respectively, and supplied to the blocks 4, 5, 6 and 7.
Claims6
A clock control system that supplies a clock oscillated by a clock oscillator to a plurality of blocks, the clock control system characterized in comprising:
- a plurality of clock control sections that are supplied with the clock oscillated by the clock oscillator;
- and
- a plurality of blocks connected to the clock control sections, respectively,
- wherein the clock supplied from the clock oscillator is converted by each of the clock control sections to a clock with a minimum clock number required for operating each of the corresponding respective blocks and supplied to each of the corresponding respective blocks.
A clock control system that supplies a clock oscillated by a clock oscillator to a plurality of blocks, the clock control system characterized in comprising:
- supplying the clock supplied from the clock oscillator to a frequency divider circuit that is connected to each of the blocks, and controlling the frequency divider circuit by a CPU to convert the clock to a clock with a minimum clock number required for operating each of the corresponding respective blocks and supply the clock to each of the corresponding respective blocks.
A clock control system that supplies a clock oscillated by a clock oscillator to a plurality of blocks, the clock control system characterized in comprising:
- supplying the clock supplied from the clock oscillator to a clock stop section that is connected to each of the blocks, and controlling the clock stop section by a CPU to stop supplying the clock to any of the blocks that do not need the clock.
Dependencies are inferred from the claim text.