p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 564

• 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)
(d) Clock Mode Selection
The boot program will set the specified clock mode in response to the clock mode selection
command. The program will return information on the selected clock mode in response to the
inquiry after this setting has been made.
The clock mode selection command should be sent after the device selection command.
Command
• Command, H'11 (1 byte): Selection of clock mode
• Size (1 byte): The number of characters that represents the modes. Fixed at 1.
• Mode (1 byte): A clock mode returned in response to the clock mode inquiry.
• SUM (1 byte): Checksum
Response
• Response, H'06 (1 byte): Response to the clock mode selection command.
Error Response
• Error response, H'91 (1 byte): Error response to the clock mode selection command
• ERROR (1 byte): Error code
Rev. 1.00 Sep. 21, 2006 Page 526 of 658
REJ09B0310-0100
The boot program will return ACK when the clock mode matches.
Even if the number of clock modes is H'00 or H'01 by a clock mode inquiry, the clock mode
must be selected using the respective value.
H'11: Checksum error
H'22: Clock mode error, that is, the clock mode does not match
H'11
H'06
H'91
Size
ERROR
Mode
SUM