PXD20RM Datasheet, PDF (1261/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

shows the commands usable in all flash access modes, Table 35-42 the commands specific to the
Individual Flash Modes and Table 35-43 the commands specific to the Parallel Flash Mode. All size
information is given in number of bytes. Note that the mapping reflects the bits which are actually sent to
the single serial flash device selected in the Individual Flash Mode or which are sent to each of the two
serial flash devices in the Parallel Flash Mode.
Table 35-41. ICO field on Winbond Devices - All Flash Access Modes
Instruction
QSPI_ICR[ICO]
Code
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
01h
Size
02h
Size (bytes to be written)
05h
Size
32h
Size (bytes to be written)
35h
Size
03h
0Bh
3Bh
BBh
Individual Flash Access: Refer to Table 35-42
Parallel Flash Access: Refer to Table 35-43
6Bh
E3h
EBh
ABh
read¹
90h
Size
4Bh
Size (bytes)
9Fh
Size
FFh
1 _{‘read’ bit controls if 8 SCLK clocks are added to read the device ID, equivalent to Size = 1 (1byte to read)}
In any case 24 dummy bits are transmitted after the instruction code to allow reading.
2 _{To reset continuous read mode while in Dual I/O operations, set Size to 1. To reset the continuous read mode while}
in Quad I/O operations set Size to 0.
Table 35-42. ICO field on Winbond Devices - Individual Flash Modes
Instruction
QSPI_ICR[ICO]
Code
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
03h
Size (bytes to be read)
0Bh
Size (bytes to be read)
Freescale Semiconductor
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
35-51