EP93XX_VIC_IntEnable
VIC1REG(EP93XX_VIC_IntEnable) = vic1_intr_enabled & ~vic1_irqs;
VIC2REG(EP93XX_VIC_IntEnable) = vic2_intr_enabled & ~vic2_irqs;
VIC1REG(EP93XX_VIC_IntEnable) = (1U << irq);
VIC2REG(EP93XX_VIC_IntEnable) = (1U << (irq - VIC_NIRQ));