ID:13629 VHDL Case Statement error at <location>: Case Statement expression has <type> type, but must have discrete type or one-dimensional array type with character type elements

CAUSE: In a Case Statement at the specified location in a VHDL Design File (.vhd), you specified a Case Statement expression with the specified type. However, the expression must have a discrete type or a one-dimensional array type that has an element base type that is a character type. This error may occur when using a Case Statement to implement RAM in a design.

ACTION: Change the Case Statement using temporary variables and nested Case Statements.