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6. SPI Mode Operations

6.

SPI Mode Operations

The device enters SPI mode on power-up by default, but this can also be switched into QPI mode.

6.1. SPI Read Operations

done in three ways:

• ‘h03: Serial CMD, Serial I/O, low frequency, configurable in linear or burst 32-byte wrap mode.

• ‘h0B: Serial CMD, Serial I/O, high frequency, configurable in 32/1K-byte burst wrap mode.

• ‘hEB: Serial CMD, Quad I/O, high frequency, configurable in 32/1K-byte burst wrap mode.

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Figure 6-1. SPI Read ‘h03 (Max frequency: 33 MHz)

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Figure 6-2. SPI Fast Read ‘h0B (Max frequency: 104 MHz)

Espressif Systems

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2018.06

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