参数资料
型号: M30201F4T-FP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP56
封装: PLASTIC, QFP-56
文件页数: 58/158页
文件大小: 1633K
代理商: M30201F4T-FP
Under
development
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
150
Appendix Standard Serial I/O Mode
Preliminary
Read Lock Bit Status Command
This command reads the lock bit status of the specified block. Execute the read lock bit status com-
mand as explained here following.
(1) Send the “7116” command code in the 1st byte of the transmission.
(2) Send addresses A8 to A15 and A16 to A23 in the 2nd and 3rd bytes of the transmission respec-
tively.
(3) The lock bit data of the specified block is output in the 4th byte of the transmission. Write the
highest address of the specified block for addresses A8 to A23.
The M30201 (flash memory version) does not have the lock bit, so the read value is always “1”
(block unlock).
A8 to
A15
A16 to
A23
7116
DQ6
CLK0
RxD0
TxD0
P53(BUSY)
Figure DD-8. Timing for reading lock bit status
Erase All Unlocked Blocks Command
This command erases the content of all blocks. Execute the erase all unlocked blocks command as
explained here following.
(1) Send the “A716” command code in the 1st byte of the transmission.
(2) Send the verify command code “D016” in the 2nd byte of the transmission. With the verify com-
mand code, the erase operation will start and continue for all blocks in the flash memory.
When block erasing ends, the P53 (BUSY) signal changes from the “H” to the “L” level. The result of the
erase operation can be known by reading the status register.
A716
D016
CLK0
RxD0
TxD0
P53(BUSY)
Figure DD-7. Timing for erasing all unlocked blocks
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