Method and circuitry for preserving a logic state
First Claim
1. Circuitry for preserving a logic state, comprising:
- first circuitry for;
in response to a first transition of a clock signal, receiving an information signal having a logic state; and
in response to a second transition of the clock signal, latching a logic state of a first signal that indicates the received information signal'"'"'s logic state;
second circuitry coupled to the first circuitry for;
in response to the second transition of the clock signal, receiving the first signal from the first circuitry; and
in response to a third transition of the clock signal, latching a logic state of a second signal that indicates the received first signal'"'"'s logic state; and
third circuitry coupled to the first and second circuitry for;
during a first mode of operation, supplying power to the first and second circuitry; and
during a second mode of operation, reducing power to the first circuitry, while supplying power to the second circuitry, so that the first signal'"'"'s logic state is lost, while the second signal'"'"'s logic state is preserved.
19 Assignments
0 Petitions
Accused Products
Abstract
In response to a first transition of a clock signal, an information signal having a logic state is received. In response to a second transition of the clock signal, first circuitry latches a logic state of a first signal that indicates the information signal'"'"'s logic state. In response to a third transition of the clock signal, second circuitry latches a logic state of a second signal that indicates the first signal'"'"'s logic state. During a first mode of operation, power is supplied to the first and second circuitry. During a second mode of operation, power is reduced to the first circuitry, while power is supplied to the second circuitry, so that the first signal'"'"'s logic state is lost, while the second signal'"'"'s logic state is preserved.
20 Citations
25 Claims
-
1. Circuitry for preserving a logic state, comprising:
-
first circuitry for;
in response to a first transition of a clock signal, receiving an information signal having a logic state; and
in response to a second transition of the clock signal, latching a logic state of a first signal that indicates the received information signal'"'"'s logic state;
second circuitry coupled to the first circuitry for;
in response to the second transition of the clock signal, receiving the first signal from the first circuitry; and
in response to a third transition of the clock signal, latching a logic state of a second signal that indicates the received first signal'"'"'s logic state; and
third circuitry coupled to the first and second circuitry for;
during a first mode of operation, supplying power to the first and second circuitry; and
during a second mode of operation, reducing power to the first circuitry, while supplying power to the second circuitry, so that the first signal'"'"'s logic state is lost, while the second signal'"'"'s logic state is preserved. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of preserving a logic state, comprising:
-
in response to a first transition of a clock signal, receiving an information signal having a logic state;
in response to a second transition of the clock signal, latching with first circuitry a logic state of a first signal that indicates the information signal'"'"'s logic state;
in response to a third transition of the clock signal, latching with second circuitry a logic state of a second signal that indicates the first signal'"'"'s logic state; and
during a first mode of operation, supplying power to the first and second circuitry; and
during a second mode of operation, reducing power to the first circuitry, while supplying power to the second circuitry, so that the first signal'"'"'s logic state is lost, while the second signal'"'"'s logic state is preserved. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
Specification