These frame parameters, meaningful on all kinds of terminals, deal with which buffers have been, or should, be displayed in the frame.
minibufferWhether this frame has its own minibuffer. The value t means
yes, nil means no, only means this frame is just a
minibuffer. If the value is a minibuffer window (in some other
frame), the frame uses that minibuffer.
This parameter takes effect when the frame is created. If specified as
nil, Emacs will try to set it to the minibuffer window of
default-minibuffer-frame (see Minibuffers and Frames). For
an existing frame, this parameter can be used exclusively to specify
another minibuffer window. It is not allowed to change it from a
minibuffer window to t and vice-versa, or from t to
nil. If the parameter specifies a minibuffer window already,
setting it to nil has no effect.
The special value child-frame means to make a minibuffer-only
child frame (see Child Frames) whose parent becomes the frame
created. As if specified as nil, Emacs will set this parameter
to the minibuffer window of the child frame but will not select the
child frame after its creation.
buffer-predicateThe buffer-predicate function for this frame. The function
other-buffer uses this predicate (from the selected frame) to
decide which buffers it should consider, if the predicate is not
nil. It calls the predicate with one argument, a buffer, once for
each buffer; if the predicate returns a non-nil value, it
considers that buffer.
buffer-listA list of buffers that have been selected in this frame, ordered most-recently-selected first.
unsplittableIf non-nil, this frame’s window is never split automatically.