tmp86fp24 TOSHIBA Semiconductor CORPORATION, tmp86fp24 Datasheet - Page 180

• Manufacturer Part Number: tmp86fp24
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Buffer 0
Buffer 1
Write data counter
Buffer 0
Buffer 1
Write data counter
Buffer 2
Buffer 127
FLASH cell
Write instruction to the
FLASH area
EEPSR<BFBUSY>
EEPSR<EWUPEN>
Buffer 2
Buffer 127
Emulation memory
Write instruction to the
FLASH area
EEPSR<BFBUSY>
EEPSR<EWUPEN>
Note 1: The emulation chip is written to emulation memory instead of FLASH cell.
Note 2: In case of emulation chip, the data stacked to data buffer is written to emulation
Figure 2.17.10 Write to the FLASH Area (In case of emulation chip)
Figure 2.17.9 Write to the FLASH Area (In case of FLASH product)
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memory just before EEPSR<BFBUSY> is changed from “1” to “0”. Therefore, if the
writing of FLASH is stopped forcibly after the write data counter becomes overflow,
the memory value on the page subjected to a write may be different from FLASH
product.
0
0
Data 0
Data 0
1
1
Data 1
Data 1
2
2
Data 2
Data 2
86FP24-178
3
3
Data before writing
127
127
128 bytes are written at a time.
Data 127
Write time (Typically 4 ms)
Data 127
0
0
Overflow
Overflow
(Set by EEPEVA register)
Erasing
Write time
Data before writing
128 bytes are written at a time.
Writing
Write completed
Write completed
Data after
Data after
TMP86FP24
writing
writing
2007-08-24