tmp89fm42 TOSHIBA Semiconductor CORPORATION, tmp89fm42 Datasheet - Page 362

• Manufacturer Part Number: tmp89fm42
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

22.8 Operation Commands
22. Serial PROM Mode
RA002
Status code 1
22.8.7.1 Flash memory status code
RPENA
BLANK
and that of the address from 0xFFE0 to 0xFFFF.
status code 1. Detailed information on this is shown in the table below. If the security program is enabled,
three commands cannot be executed: the flash memory write command, RAM loader mode command,
and Sector Erase command. To execute these commands, Chip Erase must be performed on flash memory
before they are executed.
EPFC
DAFC
Table 22-15 Flash Memory Status Code
The flash memory status code is 7-byte data. It shows the status of the flash memory security program
Restrictions are placed on the execution of some operation commands, depending on the contents of the
7
Data
2nd
1st
3rd
4th
5th
6th
7th
Password string judgment when the
flash memory erase command is
executed
(status of 0xFFFA)
Security program check of the on-
chip debugging function (OCD)
(status of 0xFFFB)
Status of the flash memory security
program
Status of 0xFFE0 through 0xFFFF
Number of transfer data (4 bytes from 3rd through
(complement of 2 of the sum total of 3rd through
6
Checksum of transfer data
5
Status code
Description
Start mark
6th bytes)
6th bytes)
Reserved
Reserved
Reserved
4
EPFC
0:
1:
0:
1:
0:
1:
0:
1:
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3
To skip the judgment of a password string (to judge PNSA and
PCSA only)
To judge a password string, PNSA, and PCSA
To skip the security program check at the start of OCD
To perform the security program check at the start of OCD
Status in which the security program is disabled
Status in which the security program is enabled
If data in the area 0xFFE0 through 0xFFFF are all 0xFF
If data in the area 0xFFE0 through 0xFFFF are other than 0xFF
DAFC
2
RPENA
1
In the case of TMP89FM42
If 3rd data is 0x03: 0xFD
If 3rd data is 0x00: 0x00
If 3rd data is 0x01: 0xFF
If 3rd data is 0x02: 0xFE
(see information below)
0x00 through 0x1F
BLANK
0x3A
0
0x04
0x00
0x00
0x00
:
Initial value (**** ****)
TMP89FM42