Frazier has retained high-profile lawyer Linda Kenney Baden in the fight to get his job back.
He was fired last week just two days after he was arrested for violating a domestic violence protective order.
In a statement sent out last week , NCCU said Frazier's personal issues "have caused the university to shift its focus from the priorities of student-athletes."
Frazier was arrested Aug. 19 on a misdemeanor charge and released on $5,000 bond. The domestic violence order he allegedly violated was issued when he was arrested last year following a domestic dispute with his wife. Frazier is not allowed to contact her.
A police report says Frazier wrote a letter to his ex-wife about a parking ticket, saying he had paid it and would deduct the money from his monthly alimony check. The letter was delivered by the couple's son. But the order states Frazier can't use a third party like a friend or a family member to communicate.
"NCCU does not condone alleged conduct or behaviors that are counter to the institution's culture of providing a nurturing environment that supports student learning and academic success," the school said.
NCCU named Dwayne Foster, the assistant head coach, as acting head football coach.