Table 29-12. Program Check Command Error Handling (continued)
Error Condition Error Bit
Flash address is not longword aligned FSTAT[ACCERR]
An invalid margin choice is supplied FSTAT[ACCERR]
Flash address is located in an XA controlled segment and the Erase All Blocks or the Read
1s All Blocks command has not successfully completed since the last reset
FSTAT[FPVIOL]
Either of the margin reads does not match the expected data FSTAT[MGSTAT0]
29.4.11.4 Read Resource Command
The Read Resource command allows the user to read data from special-purpose memory
resources located within the flash memory module. The special-purpose memory
resources available include program flash IFR space and the Version ID field. Each
resource is assigned a select code as shown in Table 29-14.
Table 29-13. Read Resource Command FCCOB Requirements
FCCOB Number FCCOB Contents [7:0]
0 0x03 (RDRSRC)
1 Flash address [23:16]
2 Flash address [15:8]
3 Flash address [7:0]
1
Returned Values
4 Read Data [31:24]
5 Read Data [23:16]
6 Read Data [15:8]
7 Read Data [7:0]
User-provided values
8 Resource Select Code (see Table 29-14)
1. Must be longword aligned (Flash address [1:0] = 00).
Table 29-14. Read Resource Select Codes
Resource
Select Code
Description Resource Size Local Address Range
0x00 Program Flash 0 IFR 256 Bytes 0x00_0000–0x00_00FF
0x01
1
Version ID 8 Bytes 0x00_0000–0x00_0007
1. Located in program flash 0 reserved space.
Chapter 29 Flash Memory Module (FTFA)
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 663
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