Z8 Encore! XP® 4K Series
Product Specification
138
Operation
The Flash Controller programs and erases Flash memory. The Flash Controller provides
the proper Flash controls and timing for Byte Programming, Page Erase, and Mass Erase
of Flash memory.
The Flash Controller contains several protection mechanisms to prevent accidental pro-
gramming or erasure. These mechanism operate on the page, sector and full-memory lev-
els.
The Flow Chart in Figure 22 illustrates basic Flash Controller operation. The following
subsections provide details about the various operations (Lock, Unlock, Byte Program-
ming, Page Protect, Page Unprotect, Page Select, Page Erase, and Mass Erase) listed in
Figure 22.
PS022815-0206
Flash Memory
ZILOG [ ZILOG, INC. ]
