
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
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
Sequence for Pre-WriteEnable instructions
10
Sequence for Pre-PageProgram instructions
11
Sequence for Pre-ReadStatus instructions
5, 12, 13, 14,
15
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
Содержание K32 L2A Series
Страница 2: ...K32 L2A Reference Manual Rev 2 01 2020 2 NXP Semiconductors...
Страница 42: ...K32 L2A Reference Manual Rev 2 01 2020 42 NXP Semiconductors...
Страница 122: ...Flash Memory Clock K32 L2A Reference Manual Rev 2 01 2020 122 NXP Semiconductors...
Страница 146: ...Module operation in low power modes K32 L2A Reference Manual Rev 2 01 2020 146 NXP Semiconductors...
Страница 158: ...Debug and security K32 L2A Reference Manual Rev 2 01 2020 158 NXP Semiconductors...
Страница 174: ...Module Signal Description Tables K32 L2A Reference Manual Rev 2 01 2020 174 NXP Semiconductors...
Страница 246: ...Application information K32 L2A Reference Manual Rev 2 01 2020 246 NXP Semiconductors...
Страница 322: ...Kinetis Bootloader Status Error Codes K32 L2A Reference Manual Rev 2 01 2020 322 NXP Semiconductors...
Страница 344: ...Application initialization information K32 L2A Reference Manual Rev 2 01 2020 344 NXP Semiconductors...
Страница 374: ...CMP Trigger Mode K32 L2A Reference Manual Rev 2 01 2020 374 NXP Semiconductors...
Страница 384: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 384 NXP Semiconductors...
Страница 592: ...Application Information K32 L2A Reference Manual Rev 2 01 2020 592 NXP Semiconductors...
Страница 602: ...Initialization and application information K32 L2A Reference Manual Rev 2 01 2020 602 NXP Semiconductors...
Страница 656: ...Functional Description K32 L2A Reference Manual Rev 2 01 2020 656 NXP Semiconductors...
Страница 664: ...Functional Description K32 L2A Reference Manual Rev 2 01 2020 664 NXP Semiconductors...
Страница 744: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 744 NXP Semiconductors...
Страница 762: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 762 NXP Semiconductors...
Страница 806: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 806 NXP Semiconductors...
Страница 868: ...Integer square root K32 L2A Reference Manual Rev 2 01 2020 868 NXP Semiconductors...
Страница 976: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 976 NXP Semiconductors...
Страница 1012: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 1012 NXP Semiconductors...
Страница 1094: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 1094 NXP Semiconductors...
Страница 1132: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 1132 NXP Semiconductors...
Страница 1182: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 1182 NXP Semiconductors...
Страница 1290: ...Functional description K32 L2A Reference Manual Rev 2 01 2020 1290 NXP Semiconductors...
Страница 1344: ...USB Voltage Regulator Module Signal Descriptions K32 L2A Reference Manual Rev 2 01 2020 1344 NXP Semiconductors...
Страница 1356: ...Initialization Application Information K32 L2A Reference Manual Rev 2 01 2020 1356 NXP Semiconductors...