The California State University shall manage its debt programs in a manner so that not more than 12 percent of its General Fund support appropriation, less the amount of that appropriation that is required to fund general obligation bond payments and State Public Works Board rental payments, is used for the total of both of the following:
(a) Debt service for capital expenditures pursuant to Section 89770.
(b) Pay-as-you-go capital outlay projects pursuant to Section 89771.