tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 218

• Manufacturer Part Number: tmp88f846ug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

19.6 Operation Mode
19. Serial PROM Mode
19.6.7 Flash Memory Read Protection Setting Mode (Operation Command: FAH)
Table 19-13 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 " 19.7 Error
Note 2: Refer to " 19.10 Passwords ".
Note 3: If the read protection is enabled for a blank product or a password error occurs for a non-blank product, TMP88F846UG
Note 4: If an error occurs during reception of a password address or a password string, TMP88F846UG stops UART communica-
Table 19-13 shows Flash memory read protection setting mode process.
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
16th byte
17th byte
18th byte
19th byte
m’th byte
n’th byte
n’+1th byte
Code ".
stops UART communication and enters the halt mode. In this case, initialize TMP88F846UG by the
vate the serial PROM mode.
tion and enters the halt mode. In this case, initialize TMP88F846UG by the
mode.
Transfer Bytes
:
Matching data (5AH)
-
Baud rate modification data
(See Table 19-4)
-
Operation command data (FAH)
-
Password count storage address
23 to 16 (Note 2)
Password count storage address
15 to 08 (Note 2)
Password count storage address
07 to 00 (Note 2)
Password comparison start
address 23 to 16 (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 TMP88F846UG
Page 208
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
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: Nothing transmitted
Error: Nothing transmitted
-
OK: Nothing transmitted
Error: Nothing transmitted
OK: FBH (Note 3)
Error: Nothing transmitted
-
Transfer Data from TMP88F846UG to Exter-
RESET
pin and reactivate the serial PROM
nal Controller
RESET
TMP88F846UG
pin and reacti-