tmp89fm82t TOSHIBA Semiconductor CORPORATION, tmp89fm82t Datasheet - Page 428

• Manufacturer Part Number: tmp89fm82t
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

22.12
Security
RA000
22.12.4
Table 22-22 Option Codes and Recommended Security Program Settings
In quantity production
At the time of debug-
ging during software
Note 1: In parallel PROM mode, Chip Erase can be performed irrespective of the option code setting.
Note 2: If the security program is not enabled in parallel PROM mode, ROM data can be read with no restrictions. Make sure that
development
Table 22-22 shows the option codes and recommended security program settings.
Recommended settings
in parallel PROM mode, you always enable the security program to protect ROM data.
Other than
EPFC_OP
(0xFFFA)
0xFF
0xFF
0xFF
Device status
DAFC_OP
Other than
Other than
(0xFFFB)
0xFF
0xFF
0xFF
0xFF
0xFF
Security Pro-
Disable
Enable
gram
Page 412
Impossible
Password
string re-
Memory
quired
Serial PROM mode
read
Password
string re-
Possible
Possible
quired
Erase
Impossible
Possible
Memory
Parallel PROM mode
read
Possible
Possible
Erase
TMP89FM82T
Can be used
Can be used
Can be used
Cannot be
Cannot be
OCD
used
used