z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 195

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Information Area
Operation
PS019921-0308
Table 91
Information Area is accessed by setting bit 7 of the Page Select Register to 1. When access
is enabled, the Information Area is mapped into Flash Memory and overlays the 512 bytes
at addresses
tions return data from the Information Area. CPU instruction fetches always comes from
Flash Memory regardless of the Information Area access bit. Access to the Information
Area is read-only.
Table 91. Z8 Encore! XP F64XX Series Information Area Map
The Flash Controller provides the proper signals and timing for Byte Programming, Page
Erase, and Mass Erase of the Flash memory. The Flash Controller contains a protection
mechanism, via the Flash Control register (FCTL), to prevent accidental programming or
erasure. The following subsections provide details on the various operations (Lock,
Unlock, Sector Protect, Byte Programming, Page Erase, and Mass Erase).
Flash Memory Address (Hex)
FE00H-FE3FH
FE40H-FE53H
FE54H-FFFFH
describes the Z8 Encore! XP
FE00H
to
FFFFH
. When the Information Area access is enabled, LDC instruc-
Reserved
20-character ASCII alphanumeric code
Left justified and filled with zeros
Reserved
Function
Part Number
®
F64XX Series Information Area. This 512 byte
Z8 Encore! XP
Product Specification
®
F64XX Series
Flash Memory
181