p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 578

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 19 Flash Memory (0.18-µm F-ZTAT Version)
(a)
The boot program will transfer the erasing program in response to the erasure selection command.
User MAT data is erased by the transferred erasing program.
Command
• Command, H'48 (1 byte): Erasure selection
Response
• Response, H'06 (1 byte): Response to erasure selection.
Error Response
• Error response, H'C8 (1 byte): Error response to erasure selection
• ERROR (1 byte): Error code
(b) Block Erasure
The boot program will erase the contents of the specified block in response to the block erasure
command.
Rev. 1.00 Sep. 21, 2006 Page 540 of 658
REJ09B0310-0100
After the erasing program has been transferred, the boot program will return ACK.
Erasure Selection
Repeat
H'54: Selection processing error (transfer error occurs and processing is not
completed)
H'48
H'06
H'C8
Host
ERROR
Figure 19.24 Erasure Sequence
Preparation for erasure (H'48)
Erasure (Erase-block number)
Erasure (H'FF)
ACK
ACK
ACK
Transfer of erasure
Boot program
Erasure
program