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ESP8266 Datasheet(PDF) 52 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

Part # ESP8266
Description  General Purpose Input/Output Interface (GPIO)
PDF  117 Pages
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Manufacturer  ESPRESSIF [ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.]
Direct Link  https://www.espressif.com/
Logo ESPRESSIF - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

ESP8266 Datasheet(HTML) 52 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

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4. SPI Communication User Guide
In Figure 4-6, the yellow area is the command 0x03 which means the master reads data
from the slave, the red area is the address register 0x00, and the green MISO area is the
data in SPI buffer.
!
Figure 4-6. Waveform Graph 2
In Figure 4-7, the yellow area is the command 0x04 which means the master reads data
from the slave, the red area is the address register 0x00, and the green MISO area is the
value of the slave's status register.
!
Figure 4-7. Waveform Graph 3
In Figure 4-8, the yellow area is the command 0x01 which means the master writes to the
slave's status register, the purple area is the value written to the slave's status register.
Espressif
! /!
44 104
2017.05



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