HMS87C1304A Datasheet, PDF (64/70 Pages) Hynix Semiconductor – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

HMS87C1304A/HMS87C1302A
HYUNDAI MicroElectronics
20. DEVICE CONFIGURATION AREA
The Device Configuration Area can be programmed or left
unprogrammed to select device configuration such as secu-
rity bit.
Ten memory locations (0F50_H ~ 0FE0_H) are designated as
Customer ID recording locations where the user can store
check-sum or other customer identification numbers.
This area is not accessible during normal execution but is
readable and writable during program / verify.
0F50_H
DEVICE
CONFIGURATION
AREA
0FF0_H
ID
0F50_H
ID
0F60_H
ID
0F70_H
Configuration Register
ID
0F80_H
ID
0F90_H
CONFIG
ID
0FA0_H
----
-
LOCK
PFD
LEVEL
-
ID
0FB0_H
ID
0FC0_H
ID
0FD0_H
ID
0FE0_H
CONFIG 0FF0_H
Preliminary ^{Figure 20-1 Device Configuration Area}
ADDRESS : 0FF0H
PFD Level Select
0 : PFD Level High (2.5~3.5V)
1 : PFD Level Low (2.0~3.0V)
SECURITY BIT
0 Allow Code Read Out
1 : Prohibit Code Read Out
64
Preliminary
Jan. 2001