M30845FJGP#U3 Renesas Electronics America, M30845FJGP#U3 Datasheet - Page 434
Manufacturer Part Number
IC M32C MCU FLASH 512K 144LQFP
Renesas Electronics America
Specifications of M30845FJGP#U3
CAN, I²C, IEBus, SIO, UART/USART
DMA, PWM, WDT
Number Of I /o
Program Memory Size
512KB (512K x 8)
Program Memory Type
24K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
A/D 34x10b, D/A 2x8b
-40°C ~ 85°C
Package / Case
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 25.10 Block Erase Command
18.104.22.168 Block Erase Command
The block erase command erases each block.
Auto erase operation (erase and verify) will start in the specified block by writing command code
The FMR00 bit in the FMR0 register indicates whether or not an auto erase operation has been
completed. The FMR00 bit is set to "0" (busy) during auto erase and to "1" (ready) when the auto
erase operation is completed.
After the completion of an auto erase operation, the FMR07 bit in the FMR0 register indicates whether
or not the auto erase operation has been completed as expected. (Refer to 25.3.8 Full Status
Figure 25.10 shows a flow chart of the block erase command programming.
The lock bit can protect each block from being programmed inadvertently. (Refer to 25.3.6 Data
In EW mode 1, do not execute this command on the block where the rewrite control program is allocated.
In EW mode 0, the microcomputer enters read status register mode as soon as an auto erase opera-
tion starts. The SRD register can be read. The SR7 bit in the SRD register is set to "0" at the same
time an auto erase operation starts. It is set to "1" when an auto erase operation is completed. The
microcomputer remains in read status register mode until the read array command or read lock bit
status command is written.
" in the first bus cycle and "xxD0
1. Write the command code and data to even addresses.
Write the command code "xx20
Block erase operation
order block address
Full status check
" to the highest-order even address of a block in the second
" to the highest-
25. Flash Memory Version