Paralell-serial conversion circuit, and electronic device using the circuit
AssigneeRohm Co., Ltd.
InventorShinichi Saito
Life of this patent
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Abstract
A parallel-serial conversion circuit in which clock frequency and data width can be flexibly configured. The parallel-serial conversion circuit converts m×n bit parallel data (m and n being natural numbers), of clock frequency f, into 1-bit serial data of clock frequency f×m×n. The first converter converts m×n bit parallel data into m-bit parallel data (Dp) of clock frequency f×n. A second converter converts the m-bit parallel data (Dp) of clock frequency f×n, outputted from the first converter, into 1-bit serial data (bout) of clock frequency f×n×m. A clock signal generation circuit respectively supplies a clock signal (CK1), of frequency f×n, to the first converter, and a clock signal (CK2), of frequency f×m×n, to the second converter.
Claims6
A parallel-serial conversion circuit which converts m×n bit parallel data, in and n being natural numbers, of clock frequency f, into 1-bit serial data, of clock frequency f×m×n, the circuit comprising:
- a first converter which converts the m×n bit parallel data into m-bit parallel data, of clock frequency f×n;
- a second converter which converts the m-bit parallel data, of clock frequency f×n, outputted from the first converter, into 1-bit serial data, of clock frequency f×n×m;
- and
- a clock signal generation circuit which respectively supplies a clock signal of frequency f×n, to the first converter, and a clock signal of frequency f×m×n, to the second converter.
Dependencies are inferred from the claim text.