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TMP86FS27FG Datasheet(PDF) 22 Page - Toshiba Semiconductor |
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TMP86FS27FG Datasheet(HTML) 22 Page - Toshiba Semiconductor |
22 / 32 page ![]() 86FS27-22 2007-08-07 TMP86FS27 2.10 Intel Hex Format (Binary) 1. After receiving the SUM of a record, the device waits for the start mark data (3AH for “:”) of the next record. Therefore, the device ignores the data, which does not match the start mark data after receiving the SUM of a record. 2. Make sure that once the controller program has finished sending the SUM of the end record, it does not send anything and waits for two bytes of data to be received (Upper and lower bytes of SUM). This is because after receiving the SUM of the end record, the boot program calculates the SUM and returns the calculated SUM in two bytes to the controller. 3. If a receive error or Intel Hex format error occurs, the UART function of TMP86FS27 stops without returning error code to the controller. In the following cases, an Intel Hex format error occurs: • When the record type is not 00H, 01H, or 02H • When a SUM error occurred • When the data length of an extended record (Type = 02H) is not 02H • When the address of an extended record (Type = 02H) is larger than 1000H and after that, receives the data record • When the data length of the end record (Type = 01H) is not 00H 2.11 Passwords The area in which passwords can be specified is located at addresses 1000H to FF9FH. The vector area (from FFA0H to FFFFH) can not be specified as passwords area. The device compares the stored passwords with the passwords, which are received from the controller. If all data of vector area are “00H” or “FFH”, the passwords comparison is not executed because the device is considered as blank product. It is necessary to specify the password count storage addresses and the password comparison start address even though it is a blank product. Note 1: When all data of addresses from FFE0H to FFFFH area are “00H” or “FFH”, the device is judged as blank product. Note 2: The same three or more bytes consecutive data can not be used as password. When the password includes the same consecutive data (three or more bytes), the password error occurs. If the password error occured, the UART function of device stops without returning error code. Note 3: *: Don’t care. Note 4: When the password doesn’t match the above condition, the password error occurs. If the password error occured, the UART function of device stops without returning error code. Note 5: In case of the blank product, the device receives Intel Hex Format immediately after receiving PCSA without receiving password strings. In this time, because the device ignores the data Table 2.11.1 Password Setting in the Blank Product and Non Blank Product Password Blank Product(Note 1) Non Blank Product PNSA (Password count storage addresses) 1000H ≤ PNSA ≤ FF9FH 1000H ≤ PNSA ≤ FF9FH PCSA (Password comparison start address) 1000H ≤ PCSA ≤ FF9FH 1000H ≤ PCSA ≤ FFA0−N N (Password count) *8 ≤ N Setting of password No need Need (Note 2) |
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