System-on-chip having special function register and operating method thereof
First Claim
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1. A system on chip (SoC) including a special function register (SFR), wherein the SFR comprising:
- a first update storage element;
a second update storage element;
a first update logic corresponding to the first update storage element; and
a second update logic corresponding to the second update storage element,wherein a clock is supplied to the first update storage element in response to the first update logic being enabled, and the clock is supplied to the second update storage element in response to the second update logic being enabled.
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Abstract
Exemplary embodiments disclose a system-on-chip (SoC) including a special function register (SFR) and an operating method thereof. The SFR comprises a first update storage element, a second update storage element, a first update logic corresponding to the first update storage element, and a second update logic corresponding to the second update storage element, wherein a clock is supplied to the first update storage element in response to the first update logic being enabled, and the clock is supplied to the second update storage element in response to the second update logic being enabled.
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Citations
28 Claims
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1. A system on chip (SoC) including a special function register (SFR), wherein the SFR comprising:
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a first update storage element; a second update storage element; a first update logic corresponding to the first update storage element; and a second update logic corresponding to the second update storage element, wherein a clock is supplied to the first update storage element in response to the first update logic being enabled, and the clock is supplied to the second update storage element in response to the second update logic being enabled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system on chip (SoC) including a special function register (SFR), the SFR comprising:
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an input port configured to receive a main clock; a first update storage element configured to receive a first clock which is generated from the main clock; and a second update storage element configured to receive a second clock generated from the main clock, wherein in response to one of the first update storage element and the second update storage element being activated, the first clock and the second clock are different from each other. - View Dependent Claims (12, 13, 14)
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15. An operating method of a system on chip (SoC) including a special function register (SFR) comprising a first update storage element, a second update storage element, and an update logic, the operating method comprising:
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supplying at least one clock to the first update storage element by the update logic in a first status; interrupting supply of the at least one clock to the first update storage element by the update logic in a second status; supplying the at least one clock to the second update storage element by the update logic in the first status; and interrupting supply of the at least one clock to the second update storage element by the update logic in the second status. - View Dependent Claims (16, 17, 18)
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19. A system on chip (SoC) including a special function register (SFR), the SoC comprising:
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a special function register (SFR); a memory configured to store data; a processor configured to process the data using the SFR; and a bus configured to connect the processor, the memory, and the SFR to each other, wherein the SFR comprises a first update storage element, a second update storage element, a first update logic corresponding to the first update storage element, and a second update logic corresponding to the second update storage element, and in response to the first update logic being enabled, a clock is supplied to the first update storage element, and in response to the second update logic being enabled, the clock is supplied to the second update storage element. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. An operating method of a special function register (SFR), the method comprising:
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supplying a plurality of clocks to respective storage cells in a plurality of respective storage elements during an init time; interrupting the supplying of the plurality of clocks to the respective storage cells after a lapse of the init time; detecting an update signal and entering a snoop status which occurs after the lapse of the init time; enabling a bus update logic corresponding to the update signal and entering a toggle state; supplying a clock to a bus update storage element in the toggle status; and interrupting the clock supply to the bus update storage element and entering the snoop status if another update signal is not detected. - View Dependent Claims (27, 28)
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Specification