W5_DESC
SIG_EXPR_DECL_SINGLE(VPIG4, VPI18, VPI18_DESC, W5_DESC);
SIG_EXPR_DECL_SINGLE(VPIG4, VPI24, VPI24_DESC, W5_DESC);
SIG_EXPR_DECL_SINGLE(VPIG4, VPI30, VPI30_DESC, W5_DESC);
SIG_EXPR_LIST_DECL_SINGLE(W5, PWM4, PWM4, W5_DESC);