Visible to Intel only — GUID: sam1403482920843
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Visible to Intel only — GUID: sam1403482920843
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7.2.1.3. Active Serial Multi-Device Configuration
You can configure multiple devices that are connected in a chain. Only AS x1 mode supports multi-device configuration.
The first device in the chain is the configuration master. Subsequent devices in the chain are configuration slaves.
- When the configuration clock source is set to Internal Oscillator, the DCLK frequency for slave device is at the range for 12.5 MHz setting regardless of the setting of active serial clock source.
- When the configuration clock source is set to CLKUSR, the DCLK frequency for slave device follows CLKUSR clock frequency.
The Configuration clock source setting menu is located at Assignments > Device > Device and Pin Options > General.
The Active serial clock source setting menu is located at Assignments > Device > Device and Pin Options > Configuration.
For 12.5 MHz frequency range setting, refer to the DCLK Frequency Specification in the AS Configuration Scheme section in the Cyclone® 10 GX Device Datasheet .