TMP86FS49AFG Toshiba Semiconductor, TMP86FS49AFG Datasheet - Page 268

• Manufacturer Part Number: TMP86FS49AFG
• Description: 8-Bit Microcontroller
• Manufacturer: Toshiba Semiconductor

20.6 Operation Mode
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20.6.7 Flash Memory Read Protection Setting Mode (Operation Command: FAH)
Table 20-13 Flash Memory Read Protection Setting Mode Process
BOOT
ROM
Note 1: “xxH × 3” indicates that the device enters the halt condition after sending 3 bytes of xxH. For details, refer to " 20.7 Error
Note 2: Refer to " 20.10 Passwords ".
Note 3: If the read protection is enabled for a blank product or a password error occurs for a non-blank product, TMP86FS49AFG
Note 4: If an error occurs during reception of a password address or a password string, TMP86FS49AFG stops UART communi-
Table 20-13 shows Flash memory read protection setting mode process.
Description of the Flash memory read protection setting mode
1st byte
2nd byte
3rd byte
4th byte
5th byte
6th byte
7th byte
8th byte
9th byte
10th byte
11th byte
12th byte
13th byte
14th byte
15th byte
m’th byte
n’th byte
n’+1th byte
Code ".
stops UART communication and enters the halt mode. In this case, initialize TMP86FS49AFG by the
tivate the serial PROM mode.
cation and enters the halt mode. In this case, initialize TMP86FS49AFG by the
mode.
Transfer Bytes
:
1. The 1st through 4th bytes of the transmitted and received data contain the same data as in the Flash
2. The 5th byte of the received data contains the command data in the flash memory status output mode
3. When the 5th byte of the received data contains the operation command data shown in Table 1-6, the
memory writing mode.
(FAH).
device echoes back the value which is the same data in the 6th byte position of the received data (in
Matching data (5AH)
-
Baud rate modification data
(See Table 20-4)
-
Operation command data (FAH)
-
Password count storage address
15 to 08 (Note 2)
Password count storage address
07 to 00 (Note 2)
Password comparison start
address 15 to 08 (Note 2)
Password comparison start
address 07 to 00 (Note 2)
Password string (Note 2)
-
-
(Wait for the next operation com-
mand data)
Transfer Data from External Con-
troller to TMP86FS49AFG
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9600 bps
9600 bps
9600 bps
9600 bps
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Modified baud rate
Baud Rate
- (Automatic baud rate adjustment)
OK: Echo back data (5AH)
Error: Nothing transmitted
-
OK: Echo back data
Error: A1H × 3, A3H × 3, 62H × 3 (Note 1)
-
OK: Echo back data (FAH)
Error: A1H × 3, A3H × 3, 63H × 3 (Note 1)
-
OK: Nothing transmitted
Error: Nothing transmitted
-
OK: Nothing transmitted
Error: Nothing transmitted
-
OK: Nothing transmitted
Error: Nothing transmitted
-
OK: Nothing transmitted
Error: Nothing transmitted
-
OK: Nothing transmitted
Error: Nothing transmitted
OK: FBH (Note 3)
Error: Nothing transmitted
-
Transfer Data from TMP86FS49AFG to
RESET
pin and reactivate the serial PROM
External Controller
TMP86FS49AFG
RESET
pin and reac-