tmp86fp24 TOSHIBA Semiconductor CORPORATION, tmp86fp24 Datasheet - Page 195

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

2.18.6.3
BOOT
ROM
Number of Bytes
1st byte
2nd byte
3rd byte
4th byte
5th byte
6th byte
7th byte
8th byte
9th byte
FLASH Memory SUM Output Mode (Operation command: 90H)
Transferred
Description of FLASH memory SUM output mode
Note 1: “xxH u 3” denotes that operation stops after sending 3 bytes of xxH. For details,
Note 2: Refer to 2.18.9 “Checksum (SUM)”.
1.
2.
3.
4.
5.
Table 2.18.10 shows FLASH memory SUM output mode process.
The process of the 1st byte through the 4th byte are the same as FLASH writing
mode.
The receive data in the 5th byte is the FLASH memory SUM command data (90H)
to calculate the entire FLASH memory.
When the 5th byte is one of the operation command data shown in Table 2.18.7,
the device sends the echo back data which is the same as received operation
command data (in this case, 90H). If the 5th byte data does not correspond to the
operation command data, the device stops UART function after sending 3 bytes of
operation command error code: (63H).
The 7th and the 8th bytes are the SUM value that is sent to the controller in order
of the upper byte and the lower byte. For details on how to calculate the SUM,
refer to 2.18.9 “Checksum (SUM)”.
After sending the SUM, the device waits for the next operation command data.
Table 2.18.10 FLASH Memory SUM Output Mode Process
refer to 2.18.8 “Error Code”.
Matching data (5AH)

Baud rate modification data
(See Table 2.18.5)

Operation command data
(90H)



(Wait for the next operation)
(Command data)
Transfer Data from External
Controller to TMP86FP24
86FP24-193
9600 bps
9600 bps
9600 bps
9600 bps
Changed new baud rate
Changed new baud rate
Changed new baud rate
Changed new baud rate
Changed new baud rate
Baud Rate
Transfer Data from TMP86FP24 to
 (Baud rate auto set)
OK: Echo back data (5AH)
Error: Nothing transmitted

OK: Echo back data
Error:A1H u 3, A3H u 3, 62H u 3
(Note 1)

OK: Echo back data (90H)
Error: A1H u 3, A3H u 3, 63H u 3
(Note 1)
OK: SUM (High) (Note 2)
Error: Nothing transmitted
OK: SUM (Low) (Note 2)
Error: Nothing transmitted

External Controller
TMP86FP24
2007-08-24