5.35 Read Burst with Wrap in SPI Mode

The Fast Quad I/O Read (FQIOR), DTR Fast Quad I/O Read (DTR_FQIOR) and Word Quad I/O Read (WQIOR) instructions in SPI mode support Burst Read Wrap operation. To enable this feature, the Set Burst with Wrap (77H) instruction must be issued before executing the FQIOR, DTR_FQIOR or WQIOR command.

During Burst Read Wrap operation, data is output sequentially while the internal Address Pointer automatically increments. When the last byte within the configured burst length is reached, the Address Pointer wraps back to the first byte of the burst region and continues reading within the same burst boundary. All burst operations are aligned according to the selected burst length. For example, with an 8-byte burst length and a starting address of 06h, the read sequence proceeds as follows: 06h → 07h → 00h → 01h → 02h → 03h → 04h → 05h → 06h → … This sequence repeats continuously until the operation is terminated by a low-to-high transition on CE#.