SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
Table 3-23 lists the external clock pins, signal names, their direction, associated module, and description of the signals. If the signal is input to the device, the module is the destination module for the signal; if the signal is an output from the device, the module is the source module of the signal.
Pin | Signal3 | I/O(1) | PMFW Module | Description |
---|---|---|---|---|
rtc_osc_xi_clkin32 | RTC_32K_CLK | I | Primary Input to SoC | RTC clock input. Optional external 32k clock |
rtc_osc_xo | 32K_CTRL | O | Primary Output | External 32k oscilator clock control (optional) |
xi_osc0 | XI_OSC0 | I | Primary Input to SoC | System Oscillator OSC0 Crystal Input.This is the main system clock of the device. |
xo_osc0 | XO_OSC0 | O | Primary Output | System Oscillator OSC0 Crystal output. |
xi_osc1 | XI_OSC1 | I | Primary Input to SoC | Auxiliary Oscillator OSC1 Crystal input . |
xo_osc1 | XO_OSC1 | O | Primary Output | Auxiliary Oscillator OSC1 Crystal output . |
clkout1 | CLKOUTMUX1_CLK | O | Primary Output | Device Clock output 1.Can be used as a system clock for other devices. |
clkout2 | CLKOUTMUX2_CLK | O | Primary Output | Device Clock output 2.Can be used as a system clock for other devices. |
clkout3 | CLKOUTMUX0_CLK | O | Primary Output | Device Clock output 3.Can be used as a system clock for other devices. |
xref_clk0 | XREF_CLK0 | I | Primary Input to SoC | External Reference Clock 0.For Audio and other Peripherals. |
xref_clk1 | XREF_CLK1 | I | Primary Input to SoC | External Reference Clock 1.For Audio and other Peripherals. |
xref_clk2 | XREF_CLK2 | I | Primary Input to SoC | External Reference Clock 2.For Audio and other Peripherals. |
xref_clk3 | XREF_CLK3 | I | Primary Input to SoC | External Reference Clock 3.For Audio and other Peripherals. |