US 12,255,739 B2
Data transmission apparatus and method of cross-domain data transmission
Wei-Yi Wei, Hsinchu (TW)
Assigned to Realtek Semiconductor Corporation, Hsinchu (TW)
Filed by Realtek Semiconductor Corporation, Hsinchu (TW)
Filed on Oct. 15, 2023, as Appl. No. 18/487,116.
Claims priority of application No. 111144470 (TW), filed on Nov. 21, 2022.
Prior Publication US 2024/0171309 A1, May 23, 2024
Int. Cl. H04L 1/00 (2006.01); G06F 5/06 (2006.01); G06F 11/00 (2006.01)
CPC H04L 1/0061 (2013.01) [G06F 5/06 (2013.01); G06F 11/00 (2013.01); H04L 1/0045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data transmission apparatus, comprising:
a transmit-side circuit, belonging to a first clock domain, and configured to store a plurality of input data; and
a receive-side circuit, belonging to a second clock domain, and configured to read a plurality of output data from the transmit-side circuit,
wherein the transmit-side circuit is configured to calculate a transmit-side parity value according to the plurality of input data, and the receive-side circuit is configured to calculate a receive-side parity value according to the plurality of output data,
wherein the receive-side circuit is configured to compare the transmit-side parity value with the receive-side parity value to generate a control signal, and the transmit-side circuit and the receive-side circuit are configured to reset, according to the control signal, a write pointer of the transmit-side circuit and a read pointer of the receive-side circuit.