MC80C0208K データシートの表示（PDF） - MagnaChip Semiconductor

部品番号

コンポーネント説明

メーカー

MC80C0208K

8-BIT SINGLE-CHIP MICROCONTROLLERS WITH 10-BIT A/D CONVERTER AND UART

MagnaChip Semiconductor 

Preliminary

MC80F0208/16/24

25. FLASH PROGRAMMING

The Device Configuration Area can be programmed or left un-

programmed to select device configuration such as security bit.

This area is not accessible during normal execution but is read-

able and writable during FLASH program / verify mode. The De-

vice Configuration Area register is located at the address 20FFH.

76

5

4

3

2

1

0

CONFIG

-

-

-

-

- PFS1 PFS0 LOCK

ADDRESS: 20FFH

INITIAL VALUE: 00H

Code Protect (Available FLASH version)

0 : Lock Disable

1 : Lock Enable (main cell read protection)

PFD Level Selection

00: PFD = 2.7V

01: PFD = 2.7V

10: PFD = 3.0V

11: PFD = 2.4V

Figure 25-1 Device Configuration Area

25.1 Lock bit

The lock bit exists in Device Configuration Area register. If lock

bit is programmed and user tries to read FLASH memory cell, the

output data from the data port is 5AH that means the normal pro-

tection operation of user program data.Once the lock bit is pro-

grammed, the user can't modify and read the data of user program

area.

25.2 Power Fail Detector

The power fail detection provides 3 level of detection, 2.4V, 2.7V

and 3.0V. The default level of detection is 2.7V and this level is

applied if user does not select the specific level in FLASH pro-

gramming S/W tools. For more information, Refer to “24. POW-

ER FAIL PROCESSOR” on page 105.

MAR. 2005 Ver 0.2

107

Share Link: