tmp89fm42a TOSHIBA Semiconductor CORPORATION, tmp89fm42a Datasheet - Page 388

• Manufacturer Part Number: tmp89fm42a
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA003
Table 22-17 Flash Memory Security Setting Command
22.8.9
BOOT
ROM
Note 1: "xxH × 3" means that the device goes into an idle state after transmitting 3 bytes of xxH.
Note 2: For information on passwords, refer to "22.12.1 Passwords".
Note 3: If the flash memory security setting command is executed for a blank product or if a password error occurs for a non-blank
Note 4: If a communication error occurs during the transfer of a password address or password string, the TMP89FM42A stops
Note 5: If the flash memory security is not enabled, it becomes possible to read ROM data freely in parallel PROM mode. Make
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-th + 1 byte
Transfer byte
Table 22-17 shows the flash memory security setting command.
Flash memory security setting command (0xFA)
product, the TMP89FM42A stops communication and goes into an idle state. Therefore, if a password error occurs,
initialize the TMP89FM42A by using the RESET pin, and restart the serial PROM mode.
communication and goes into an idle state. Therefore, if a password error occurs, initialize the TMP89FM42A by using
the RESET pin, and restart the serial PROM mode.
sure that you enable the flash memory security in mass production.
Matching data 1 (0x86 or 0x30)
-
Matching data 2 (0x79 or 0xCF)
-
Operation command data (0xFA)
-
Password count storage address 23 to 16
Password count storage address 15 to 08
Password count storage address 07 to 00
Password comparison start address 23 to 16
Password comparison start address 15 to 08
Password comparison start address 07 to 00
Password string
-
-
(Wait for the next command data)
Transfer data from the external controller to
TMP89FM42A
Page 369
Automatic adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate after adjustment
Baud rate
Transfer data from TMP89FM42A to the ex-
- (Automatic baud rate adjustment)
OK: Echo back data (0x86 or 0x30)
Error: No data transmitted
-
OK: Echo back data (0x79 or 0xCF)
Error: No data transmitted
-
OK: Echo back data (0xFA)
Error: 0xA1 × 3, 0xA3 × 3, 0x63 × 3 (note 1)
-
OK: No data transmitted
Error: No data transmitted
-
OK: No data transmitted
Error: No data transmitted
-
OK: No data transmitted
Error: No data transmitted
-
OK: No data transmitted
Error: No data transmitted
-
OK: No data transmitted
Error: No data transmitted
-
OK: No data transmitted
Error: No data transmitted
-
OK: No data transmitted
Error: No data transmitted
OK: 0xFB (note 3)
Error: No data transmitted
-
ternal controller
TMP89FM42A