Z8F041APJ020EG View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z8F041APJ020EG

High-Performance 8-Bit Microcontrollers Z8 Encore! XP® F082A Series

Zilog 

Z8 Encore! XP® F082A Series

Product Specification

156

Flash Page Select Register

The Flash Page Select (FPS) Register shares address space with the Flash Sector Protect

Register. Unless the Flash controller is unlocked and written with 5EH, writes to this

address target the Flash Page Select Register.

The register is used to select one of the available Flash memory pages to be programmed

or erased. Each Flash Page contains 512 bytes of Flash memory. During a Page Erase

operation, all Flash memory having addresses with the most significant 7 bits given by

FPS[6:0] are chosen for program/erase operation.

Table 82. Flash Page Select Register (FPS)

Bit

7

6

5

4

3

2

1

0

Field

INFO_EN

PAGE

RESET

0

0

0

0

0

0

0

0

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Address

FF9H

Bit

Description

[7]

Information Area Enable

INFO_EN 0 = Information Area us not selected.

1 = Information Area is selected. The Information Area is mapped into the Program Memory

address space at addresses FE00H through FFFFH.

[6:0]

PAGE

Page Select

This 7-bit field identifies the Flash memory page for Page Erase and page unlocking. Program

Memory Address[15:9] = PAGE[6:0]. For the Z8F08xx devices, the upper 3 bits must be zero.

For the Z8F04xx devices, the upper 4 bits must be zero. For Z8F02xx devices, the upper 5 bits

must always be 0. For the Z8F01xx devices, the upper 6 bits must always be 0.

PS022827-1212

PRELIMINARY

Flash Control Register Definitions

Share Link: