Read Resource Command - NXP Semiconductors freescale KV4 Series Reference Manual

• Byte 2 data is programmed to byte address start+0b01,
• Byte 1 data is programmed to byte address start+0b10,
• Byte 0 data is programmed to byte address start+0b11.
See the description of margin reads,
Table 32-49. Margin Level Choices for Program Check
Read Margin Choice
0x01
0x02
Table 32-50. Program Check Command Error Handling
Error Condition
Command not available in current mode/security
An invalid flash address is supplied
Flash address is not longword aligned
An invalid margin choice is supplied
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
Either of the margin reads does not match the expected data

32.4.10.3 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 32-51. Read Resource Command FCCOB Requirements
FCCOB Number
0
1
2
3
4
5
6
Freescale Semiconductor, Inc.
NOTE
Margin Level Description
Read at 'User' margin-1 and 'User' margin-0
Read at 'Factory' margin-1 and 'Factory' margin-0
Table
FCCOB Contents [7:0]
0x03 (RDRSRC)
Flash address [23:16]
Flash address [15:8]
Flash address [7:0]
Returned Values
Read Data [31:24]
Read Data [23:16]
Read Data [15:8]
Table continues on the next page...
KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
Chapter 32 Flash Memory Module (FTFA)
Margin Read Commands
32-52.
1
Error Bit
FSTAT[ACCERR]
FSTAT[ACCERR]
FSTAT[ACCERR]
FSTAT[ACCERR]
FSTAT[FPVIOL]
FSTAT[MGSTAT0]
637