GENERAL DESCRIPTION
   The GD25LH40C/20C/10C/05C (4M/2M/1M/512K-bit) Serial flash supports the standard Serial Peripheral Interface (SPI), and supports the Dual/Quad SPI: Serial Clock, Chip Select, Serial Data I/O0 (SI), I/O1 (SO), I/O2 (WP#), and I/O3 (HOLD#). The Dual I/O data is transferred with speed of 208Mbits/s, the Quad I/O & Quad output data is transferred with speed of 416Mbits/s.