ambiq,stimer

Vendor: Ambiq Micro, Inc.

Note

An implementation of a driver matching this compatible is available in drivers/timer/ambiq_stimer.c.

Description

Ambiq STIMER

Properties

Properties not inherited from the base binding file.

Name

Type

Details

clk-source

int

 
clk-source specifies the clock source that used by the system timer.
For Apollo3:
0 - NOCLK : No clock enabled.
1 - HFRC_DIV16 : 3MHz from the HFRC clock divider.
2 - HFRC_DIV256 : 187.5KHz from the HFRC clock divider.
3 - XTAL_DIV1 : 32768Hz from the crystal oscillator.
4 - XTAL_DIV2 : 16384Hz from the crystal oscillator.
5 - XTAL_DIV32 : 1024Hz from the crystal oscillator.
6 - LFRC_DIV1 : Approximately 1KHz from the LFRC oscillator (uncalibrated).
7 - CTIMER0A : Use CTIMER 0 section A as a prescaler.
8 - CTIMER0B : Use CTIMER 0 section B (or A and B linked together) as a prescaler.
For Apollo4:
0 - NOCLK : No clock enabled.
1 - HFRC_6MHZ : 6MHz from the HFRC clock divider.
2 - HFRC_375KHZ : 375KHz from the HFRC clock divider.
3 - XTAL_32KHZ : 32768Hz from the crystal oscillator.
4 - XTAL_16KHZ : 16384Hz from the crystal oscillator.
5 - XTAL_1KHZ : 1024Hz from the crystal oscillator.
6 - LFRC_1KHZ : Approximately 1KHz from the LFRC oscillator (uncalibrated).
7 - CTIMER0 : Use CTIMER 0 for the clock source (allows prescaling from other system clocks).
8 - CTIMER1 : Use CTIMER 1 for the clock source (allows prescaling from other system clocks).

This property is required.