m30262f8gp Renesas Electronics Corporation., m30262f8gp Datasheet - Page 230

• Manufacturer Part Number: m30262f8gp
• Description: Renesas 16-bit Cmos Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

224
Appendix Standard Serial I/O Mode 2 (Flash Memory Version)
Figure 1.23.4. Timing for clearing the status register
Figure 1.23.5. Timing for the page program
Clear Status Register Command
Page Program Command
This command clears the bits (SR4, SR5) which are set when the status register operation ends in
error. When the “50
This command writes the specified page (256 bytes) in the flash memory sequentially one byte at a
time. Execute the page program command as explained here following.
The result of the page program can be known by reading the status register. For more information,
see the section on the status register.
Each block can be write-protected with the lock bit. For more information, see the section on the data
protection function. Additional writing is not allowed with already programmed pages.
(1) Transfer the “41
(2) Transfer addresses A
(3) From the 4th byte onward, as write data (D
(M16C reception data)
(M16C transmit data)
A
Preliminary Specifications Rev. 0.9
8
Specifications in this manual are tentative and subject to change.
to A
23
is input sequentially from the smallest address first, that page is automatically written.
16
RxD1
TxD1
” command code is sent with the 1st byte, the aforementioned bits are cleared.
16
” command code with the 1st byte.
(M16C reception data)
(M16C transmit data)
8
to A
15
Renesas Technology Corp.
41
and A
16
16
RxD1
A
TxD1
A
to A
8
15
to
0
23
–D
with the 2nd and 3rd bytes respectively.
A
7
A
16
) for the page (256 bytes) specified with addresses
23
to
50
data0
16
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
data255
M16C/26 Group