M30622SAFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30622SAFP Datasheet - Page 264

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

Appendix Standard Serial I/O Mode 2 (Flash Memory Version)
264
Figure 1.29.31. Timing for enabling the lock bit
Figure 1.29.30. Timing for reading lock bit status
Read Lock Bit Status Command
Lock Bit Enable Command
This command reads the lock bit status of the specified block. Execute the read lock bit status com-
mand as explained here following.
This command enables the lock bit in blocks whose bit was disabled with the lock bit disable com-
mand. The command code “7A
only enables the lock bit function; it does not set the lock bit itself.
(1) Transfer the “71
(2) Transfer addresses A
(3) The lock bit data of the specified block is output with the 4th byte. Write the highest address of
the specified block for addresses A
(M16C reception data)
(M16C transmit data)
16
” command code with the 1st byte.
(M16C reception data)
(M16C transmit data)
8
to A
RxD1
TxD1
16
15
” is sent with the 1st byte of the serial transmission. This command
and A
8
16
to A
RxD1
TxD1
to A
71
23
16
.
23
with the 2nd and 3rd bytes respectively.
A
A
8
15
to
7A
16
A
A
16
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
23
to
DQ6
M16C / 62A Group
Mitsubishi microcomputers