Winbond: Difference between revisions

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 ** Transition to low places device into active mode
 ** /CS must track VCC during initialization and shutdown
-* DI (IO0) data input / data io0
+* DI (IO0) data input / I/O-0
-* DO (IO1) data output / data io1
+** SPI must use this for writing. Dual- and Quad-SPI use it bidirectionally.
-* /WP (IO2) write protect input / data io2
+* DO (IO1) data output / I/O-1
-* /HOLD (IO3) hold input / data io3
+** SPI must use this for reading. Dual- and Quad-SPI use it bidirectionally.
+* /WP (IO2) write protect input / I/O-2
+** Used only in Hardware Protection mode (incompatible with Quad-SPI)
+* /HOLD (IO3) hold input / I/O-3
+** Used only in Hardware Protection mode (incompatible with Quad-SPI)
 * VCC power (2.7V--3.6V)
 * GND
-/WP and /HOLD are only for SPI/Dual-SPI (Quad-SPI uses data io 0--3). Data is always written on the rising edge of CLK, and read on the falling edge. SPI must write through DO and read through DI. Dual- and Quad-SPI treat data io pins as bidirectional.
+Data is written on the rising edge of CLK, and read on the falling edge.
 ===Registers===