tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 259

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

Note 6: If the security program is enabled or a password error occurs, TMP88FW45AFG stops UART communication and enters
Note 7: If an error occurs during the reception of a password address or a password string, TMP88FW45AFG stops UART com-
Note 8: Do not write only the address from FFFE0H to FFFFFH when all flash memory data is the same. If only these area are
Note 9: To rewrite data to Flash memory addresses at which data (including FFH) is already written, make sure to erase the
Description of the flash memory writing mode
from the external controller. If a password error occurs due to incorrect password count storage address or password
comparison start address, TMP88FW45AFG stops UART communication and enters the halt condition. Therefore, when
a password error occurs, initialize TMP88FW45AFG by the RESET pin and reactivate the serial ROM mode.
the halt confition. In this case, initialize TMP88FW45AFG by the RESET pin and reactivate the serial ROM mode.
munication and enters the halt condition. In this case, initialize TMP88FW45AFG by the RESET pin and reactivate the
serial PROM mode.
written, the subsequent operation can not be executed due to password error.
existing data by "sector erase" or "chip erase" before rewriting data.
1. The 1st byte of the received data contains the matching data. When the serial PROM mode is activated,
2. When receiving the matching data (5AH), the device transmits an echo back data (5AH) as the second
3. The 3rd byte of the received data contains the baud rate modification data. The five types of baud rate
4. Only when the 3rd byte of the received data contains the baud rate modification data corresponding to
5. The 5th byte of the received data contains the command data (30H) to write the flash memory.
6. When the 5th byte of the received data contains the operation command data shown in Table 21-6, the
7. The 7th byte contains the data for 23 to 16 bits of the password count storage address. When the data
8. The 9th byte contains the data for 15 to 8 bits of the password count storage address. When the data
9. The 11th byte contains the data for 7 to 0 bits of the password count storage address. When the data
10. The 13th byte contains the data for 23 to 16 bits of the password comparison start address. When the
11. The 15th byte contains the data for 15 to 8 bits of the password comparison start address. When the
12. The 17th byte contains the data for 7 to 0 bits of the password comparison start address. When the data
13. The 19th through m’th bytes contain the password data. The number of passwords becomes the data
TMP88FW45AFG (hereafter called device), waits to receive the matching data (5AH). Upon reception
of the matching data, the device automatically adjusts the UART’s initial baud rate to 9600 bps.
byte data to the external controller. If the device can not recognize the matching data, it does not transmit
the echo back data and waits for the matching data again with automatic baud rate adjustment. There-
fore, the external controller should transmit the matching data repeatedly till the device transmits an
echo back data. The transmission repetition count varies depending on the frequency of device. For
details, refer to Table 21-5.
modification data shown in Table 21-4 are available. Even if baud rate is not modified, the external
controller should transmit the initial baud rate data (28H: 9600 bps).
the device's operating frequency, the device echoes back data the value which is the same data in the
4th byte position of the received data. After the echo back data is transmitted, baud rate modification
becomes effective. If the 3rd byte of the received data does not contain the baud rate modification data,
the device enters the halts condition after sending 3 bytes of baud rate modification error code (62H).
device echoes back the value which is the same data in the 6th byte position of the received data (in
this case, 30H). If the 5th byte of the received data does not contain the operation command data, the
device enters the halt condition after sending 3 bytes of the operation command error code (63H).
received with the 7th byte has no receiving error, the device does not send any data. If a receiving error
or password error occurs, the device does not send any data and enters the halt condition.
received with the 9th byte has no receiving error, the device does not send any data. If a receiving error
or password error occurs, the device does not send any data and enters the halt condition.
received with the 11th byte has no receiving error, the device does not send any data. If a receiving
error or password error occurs, the device does not send any data and enters the halt condition.
data received with the 13th byte has no receiving error, the device does not send any data. If a receiving
error or password error occurs, the device does not send any data and enters the halt condition.
data received with the 15th byte has no receiving error, the device does not send any data. If a receiving
error or password error occurs, the device does not send any data and enters the halt condition.
received with the 17th byte has no receiving error, the device does not send any data. If a receiving
error or password error occurs, the device does not send any data and enters the halt condition.
(N) stored in the password count storage address. The external password data is compared with N-byte
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