Question about CSS 3 Writing Modes

I was reading the introduction of the CSS 3 Writing Modes
http://dev.w3.org/csswg/css3-writing-modes/

I'm trying to understand figure2:


'direction' property 'ltr'
'unicode-bidi' property as ?
'text-orientation' property as ' sideways-right'
'writing-mode' property as 'vertical-lr'

I am working on a script with a downward inline base and a rightward 
block flow.
SignWriting writing mode

----> Block flow

| i b *T F*
| n a *e l*
| l s *x o*
v i e *t w*
   n
    e

'direction' property as 'ltr'
'text-orientation' property as 'upright'
'writing-mode' property as  'vertical-lr' or 'tb-lr'

The vertical translate to the base line is based on words separated by 
spaces.

Am I correct on the values?
Do I need other values?

Regards,
-Steve