CONFIG_APIC_TIMER_TSC_N

TSC to local APIC timer frequency multiplier (N)

Type: int

Direct dependencies

(APIC_TIMER && (BOARD_EHL_CRB || BOARD_EHL_CRB_SBL)) || (APIC_TIMER && BOARD_UP_SQUARED) || (APIC_TIMER_TSC && APIC_TIMER)

(Includes any dependencies from ifs and menus.)

Defaults

• 249

• 249

• 1

Kconfig definitions

At <Zephyr>/boards/x86/ehl_crb/Kconfig.defconfig:36

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:22

Menu path: (Top)

config APIC_TIMER_TSC_N
    int
    default 249
    depends on APIC_TIMER && (BOARD_EHL_CRB || BOARD_EHL_CRB_SBL)

---

At <Zephyr>/boards/x86/up_squared/Kconfig.defconfig:28

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:22

Menu path: (Top)

config APIC_TIMER_TSC_N
    int
    default 249
    depends on APIC_TIMER && BOARD_UP_SQUARED

---

At <Zephyr>/drivers/timer/Kconfig:45

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:40 → <Zephyr>/drivers/Kconfig:28

Menu path: (Top) → Device Drivers → Timer Drivers → New local APIC timer → Use invariant TSC for sys_clock_cycle_get_32()

config APIC_TIMER_TSC_N
    int "TSC to local APIC timer frequency multiplier (N)"
    default 1
    depends on APIC_TIMER_TSC && APIC_TIMER

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)