Renesas H8S Series Hardware Manual page 852

16-bit single-chip microcomputer

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Table of Contents

Section 21 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, 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, H'06 (1 byte): Response to the clock mode selection command.

The boot program will return ACK when the clock mode matches.

Error Response

• Error response, H'91 (1 byte)

• ERROR (1 byte): Error code

H'11: Checksum error

H'22: Clock mode error, that is, the clock mode does not match

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.

Rev. 3.00 Jul. 14, 2005 Page 804 of 986

REJ09B0098-0300

: Error response to the clock mode selection command

H8s/2100 series H8s/2114r R4f2114r