NXP Semiconductors K32 L2A Series, Reference Manual, Page: 303 / 1379

Table 14-52. Configuration fields in QSPI config block
Offset Size
(bytes)
Configuration Field Description
NOTE: If the time that the external SPI device is busy
is more than this timeout value, then the
QuadSPI driver returns a timeout.
1. If parallel mode is enabled, then page size and sector size must be twice the actual size.
14.4.3.2 Look-up-table
The look-up table (LUT) is a part of the QCB, and contains sequences for instructions,
such as read and write instructions. The Kinetis Bootloader defines LUT entries to
support erase, program and read operations.
NOTE
The sequence in each LUT entry is target-specific. See the
datasheet or reference manual of the corresponding serial flash
device.
Table 14-53. Look-up table entries for bootloader
Index Field Description
0 Read Sequence for read instructions
1 WriteEnable Sequence for WriteEnable instructions
2 EraseAll Sequence for EraseAll instructions
3 ReadStatus Sequence for ReadStatus instructions
4 PageProgram Sequence for Page Program instructions
6 PreErase
1
Sequence for Pre-Erase instructions
7 SectorErase Sequence for Sector Erase
8 Dummy Sequence for dummy operation if needed.
For example, if continuous read is configured in index 0, then the dummy LUT
should be configured to force the external SPI flash to exit continuous read
mode.
If a dummy operation is not required, then this LUT entry must be set to 0.
9 PreWriteEnable
1
Sequence for Pre-WriteEnable instructions
10 PrePageProgram
1
Sequence for Pre-PageProgram instructions
11 PreReadStatus
1
Sequence for Pre-ReadStatus instructions
5, 12, 13, 14,
15
Undefined
1
All of these sequences are free to be used for other purpose. For example,
index 5 can be used for enabling the Quad mode of SPI flash devices.
1. If these LUT entries are are not required, then these LUT entries can be used for other purposes.
Chapter 14 Kinetis ROM Bootloader
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 303