tmp86fh46bng TOSHIBA Semiconductor CORPORATION, tmp86fh46bng Datasheet - Page 196

• Manufacturer Part Number: tmp86fh46bng
• Description: 8 Bit Microcontroller Tlcs-870/c Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

15.13
Specifying the Erasure Area
15.13
15.14
Erasure Area Specification Data (n−2 byte data)
ing the sector erase while the security program is enabled results in an infinite loop.
the security program is disabled. Therefore, execute the chip erase (not sector erase) to disable the security program.
ture to prevent overlap current to unused ports. (All port inputs and peripheral function inputs shared with the
ports become invalid.) Therefore, to access to the flash memory in the RAM loader mode without UART communi-
cation, port inputs must be valid. To make port inputs valid, set the pin of the port input control register (SPCR)
to “1”.
In the flash memory erasing mode, the erasure area of the flash memory is specified by n−2 byte data.
The start address of an erasure area is specified by ERASTA, and the end address is specified by ERAEND.
If ERASTA is equal to or smaller than ERAEND, the sector erase (erasure in 4 kbyte units) is executed. Execut-
If ERASTA is larger than ERAEND, the chip erase (erasure of an entire flash memory area) is executed and
In the serial PROM mode, the input level is fixed to the all ports except P03 and P02 ports with a hardware fea-
The SPCR register is not operated in the MCU mode.
Note:When the sector erase is executed for the area containing no flash cell, TMP86FH46BNG stops the UART com-
Specifying the Erasure Area
Port Input Control Register
munication and enters the halt condition.
7
ERASTA
ERAEND
6
ERASTA
The start address of the
erasure area
The end address of the
erasure area
5
4
0000:
0001:
0010:
0011:
0100:
0101:
0110:
0111:
1000:
1001:
1010:
1011:
1100:
1101:
1110:
1111:
0000:
0001:
0010:
0011:
0100:
0101:
0110:
0111:
1000:
1001:
1010:
1011:
1100:
1101:
1110:
1111:
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3
from 0000H
from 1000H
from 2000H
from 3000H
from 4000H
from 5000H
from 6000H
from 7000H
from 8000H
from 9000H
from A000H
from B000H
from C000H
from D000H
from E000H
from F000H
to 0FFFH
to 1FFFH
to 2FFFH
to 3FFFH
to 4FFFH
to 5FFFH
to 6FFFH
to 7FFFH
to 8FFFH
to 9FFFH
to AFFFH
to BFFFH
to CFFFH
to DFFFH
to EFFFH
to FFFFH
2
ERAEND
1
0
TMP86FH46BNG