M30622SAFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30622SAFP Datasheet - Page 230

• Manufacturer Part Number: M30622SAFP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

CPU Rewrite Mode (Flash Memory Version)
230
Figure 1.26.7. Read lock bit status flowchart
Read Lock Bit Status Command (71
By writing the command code “71
memory block in the second bus cycle that follows, the system reads out the status of the lock bit of
the specified block on to the data (D6).
Figure 1.26.7 shows an example of a read lock bit program flowchart.
Enter block address
Note: Data bus bit 6.
Blocks locked
Write 71
D6 = 0?
16
16
Start
(Note)
” in the first bus cycle and then the block address of a flash
)
YES
16
NO
Blocks not locked
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M16C / 62A Group
Mitsubishi microcomputers