Version: **
For continuous SDR Read operations in S25HL/HS-T family, the upper nibble of mode bits is “A” and the lower nibble of mode bits is “x” (“don’t care”). The S25FL/FS-S family does not support continuous read mode for SDR Fast Read (0Ch). For continuous DDR Quad I/O Read operation, the mode bits must be “A5h” in the S25HL/HS-T, while the S25FL/FS-S family accepts other mode bit patterns where upper and lower nibbles are complementary; for example: 5Ah, F0h.
Following table shows the supported continuous read operations with the valid mode bit patterns:
|
Operation name
|
Instruction code
(HEX)
|
Valid mode bit pattern (HEX) for continuous read operations
|
|
S25HL/HS-T
|
S25FL/FS-S
|
|
SDR Fast Read
|
0C
|
Ax
|
Not supported
|
|
SDR Dual I/O Read
|
BB / BC
|
Ax
|
Ax
|
|
SDR Quad I/O Read
|
EB / EC
|
Ax
|
Ax
|
|
DDR Quad I/O Read
|
ED / EE
|
A5
|
Upper and lower nibbles are complementary
|
