Alvaro BarcellosTop 8 pins
The top 8 pins pins-outs of zero-insertion-force (ZIF) socket, are reserved for I2C and SPI, : with follow setup.
| SPI | I2C | PIN | PIN | I2C | SPI | |
| /CS | S0 | 1 | 40 | VCC | VCC | |
| SO | S1 | 2 | 39 | WR | /HOLD | |
| /WP | S2 | 3 | 38 | SCL | MSCK | |
| GND | GND | 4 | 37 | SDA | MOSI |
OBS.
pull-ups 4k7 resistors at (S1, S2, SDA, SCL, WR) and pull-down at S0.
I2C or SPI must be select for use, or go in tri-state.
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