tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 270

• Manufacturer Part Number: tmp88fw45afg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

21.8
Checksum (SUM)
Table 21-15 Checksum Calculation Data
Flash memory writing mode
Flash memory SUM output mode
RAM loader mode
Product ID Code Output mode
Flash Memory Status Output mode
Flash Memory Erasing mode
Operating Mode
Data in the entire area of the flash memory
RAM data written in the first received RAM ad-
dress through the last received RAM address
9th through 18th bytes of the transferred data
9th through 12th bytes of the transferred data
All data in the erased area of the flash memory
(the whole or part of the flash memory)
Calculation Data
Page 256
Even when a part of the flash memory is written, the checksum
of the entire flash memory area (04000H to 21EFFH, and
FFF00H to FFFFFH) is calculated.
The data length, address, record type and checksum in Intel Hex
format are not included in the checksum.
The length of data, address, record type and checksum in Intel
Hex format are not included in the checksum.
For details, refer to "21.11 Product ID Code".
For details, refer to "21.12 Flash Memory Status Code"
When the sector erase is executed, only the erased area is used
to calculate the checksum. In the case of the chip erase, an
entire area of the flash memory is used.
Description
TMP88FW45AFG