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25.3.2
CRC Snoop ..................................................................................................................... 645
26. Flash Memory....................................................................................... 648
26.1
Introduction ............................................................................................................................... 648
26.2
Memory Map............................................................................................................................. 650
26.3
Registers................................................................................................................................... 651
26.3.1
Flash Memory Control Register 0 (FMR0) ....................................................................... 651
26.3.2
Flash Memory Control Register 1 (FMR1) ....................................................................... 654
26.3.3
Flash Memory Control Register 2 (FMR2) ....................................................................... 655
26.3.4
Flash Memory Control Register 3 (FMR3) ....................................................................... 656
26.3.5
Flash Memory Control Register 6 (FMR6) ...................................................................... 657
26.4
Optional Function Select Area .................................................................................................. 658
26.4.1
Optional Function Select Address 1 (OFS1) ................................................................... 659
26.4.2
Optional Function Select Address 2 (OFS2) ................................................................... 660
26.5
Flash Memory Rewrite Disable Function .................................................................................. 661
26.6
Boot Mode ................................................................................................................................ 661
26.7
User Boot Mode........................................................................................................................ 661
26.7.1
User Boot Function .......................................................................................................... 661
26.8
CPU Rewrite Mode ................................................................................................................... 665
26.8.1
EW0 Mode ....................................................................................................................... 666
26.8.2
EW1 Mode ....................................................................................................................... 672
26.8.3
Operating Speed .............................................................................................................. 678
26.8.4
Data Protect Function ...................................................................................................... 678
26.8.5
Suspend Function ............................................................................................................ 679
26.8.6
Software Commands ....................................................................................................... 681
26.8.7
Status Register ................................................................................................................ 688
26.9
Standard Serial I/O Mode ......................................................................................................... 691
26.9.1
ID Code Check Function ................................................................................................. 692
26.9.2
Forced Erase Function .................................................................................................... 693
26.9.3
Standard Serial I/O Mode Disable Function .................................................................... 693
26.9.4
Standard Serial I/O Mode 1 ............................................................................................. 694
26.9.5
Standard Serial I/O Mode 2 ............................................................................................. 696
26.10
Parallel I/O Mode ...................................................................................................................... 697
26.10.1
ROM Code Protect Function ........................................................................................... 697
26.11
Notes on Flash Memory............................................................................................................ 698
26.11.1
OFS1 Address, OFS2 Address, and ID Code Storage Address ...................................... 698
26.11.2
Reading Data Flash ......................................................................................................... 698
26.11.3
CPU Rewrite Mode .......................................................................................................... 699
26.11.4
User Boot ......................................................................................................................... 701
A- 15
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