Cy Walsh has faced court for the first time charged with murdering his father, senior Adelaide Crows coach Phil Walsh.

Phil Walsh, 55, died from multiple stab wounds after a domestic dispute at his Somerton Park home in the early hours of July 3.

His wife, Meredith, was also taken to hospital and treated for a leg injury.

His son, 26-year-old Cy Walsh, was charged with murder and was sedated in the Flinders Medical Centre, before being moved to the James Nash House mental health facility.

He appeared in the Adelaide Magistrates Court on Tuesday via video link from James Nash House.

Walsh appeared clean-shaven, was dressed in a tracksuit, and spoke clearly during the hearing.

He is yet to enter a plea to one count of murder.

It was his first time in court, despite the case being heard by a magistrate hours after Phil Walsh's death in July.

Walsh was too sedated to instruct his lawyer at the time and remained at the Flinders Medical Centre.

A court sketch of Cy Walsh, who faced court for the first time charged with murdering his father Phil Walsh. ( Tim Ide )

Prosecutor Lucy Boord requested a further seven weeks to file additional evidence, including a toxicology report analysing hair samples for drugs.

She also flagged additional witness statements and electronic crime evidence.

Ms Boord declined to answer questions as she left the court.

Walsh will remain in James Nash House and the case will return to court on November 3 at 10:00am for further declarations.

When Magistrate Elizabeth Sheppard asked Walsh if he understood what had happened in court, he replied "Yep, [lawyer Rebecca Gristwood] has explained that to me, I understand".