Physical-Layer Drivers

The physical-layer drivers distributed with the NOR driver (see the table below) support a wide variety of parallel and serial flash devices from major vendors. Whenever possible, advanced programming algorithms (such as the common buffered programming commands) are used to optimize performance. Within the diversity of NOR flash, some may be found which implement the basic command set, but not the advanced features; for these, a released physical-layer may need to be modified. In all cases, the manufacturer’s reference should be compared to the driver description below.

Table - Physical-layer drivers

Driver API	Files	Description
`FSDev_NOR_AMD_1x08`	`fs_dev_nor_amd_1x08.*`	Supports CFI-compatible devices with 8-bit data bus implementing AMD command set.
`FSDev_NOR_AMD_1x16`	`fs_dev_nor_amd_1x16.*`	Supports CFI-compatible devices i with 16-bit data bus mplementing AMD command set.
`FSDev_NOR_Intel_1x16`	`fs_dev_nor_intel.*`	Supports CFI-compatible devices i with 16-bit data bus mplementing Intel command set.
`FSDev_NOR_SST39`	`fs_dev_nor_sst39.*`	Supports various SST SST39 devices with 16-bit data bus.
`FSDev_NOR_STM29_1x08`	`fs_dev_nor_stm29_1x08.*`	Supports various ST M29 devices with 8-bit data bus.
`FSDev_NOR_STM29_1x16`	`fs_dev_nor_stm29_1x16.*`	Supports various ST M29 devices with 16-bit data bus.
`FSDev_NOR_STM25`	`fs_dev_nor_stm25.*`	Supports various ST M25 serial devices.
`FSDev_NOR_SST25`	`fs_dev_nor_sst25.*`	Supports various SST SST25 serial devices.