HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 998

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
(b) Device Selection
The boot program will set the supported device to the specified device code. The program will
return the selected device code in response to the inquiry after this setting has been made.
Command
• Command, H'10, (one byte): Device selection
• Size (one byte): Amount of device-code data
• Device code (four bytes): Device code (ASCII code) returned in response to the supported
• SUM (one byte): Checksum
Response
• Response, H'06, (one byte): Response to the device selection command
Error response
• Error response, H'90, (one byte): Error response to the device selection command
(c) Clock Mode Inquiry
The boot program will return the supported clock modes in response to the clock mode inquiry.
Command
• Command, H'21, (one byte): Inquiry regarding clock mode
Response
• Response, H'31, (one byte): Response to the clock-mode inquiry
• Size (one byte): Amount of data that represents modes
• Number of clock modes (one byte): The number of supported clock modes
• Mode (one byte): Values of the supported clock modes (i.e. H'01 means clock mode 1.)
• SUM (one byte): Checksum
Rev.7.00 Mar. 18, 2009 page 930 of 1136
REJ09B0109-0700
This is fixed at 4
device inquiry
ACK will be returned when the device code matches.
ERROR
H'00 indicates no clock mode or the device allows to read the clock mode.
H'11: Sum check error
H'21: Device code error, that is, the device code does not match
H'10
H'06
H'21
H'31
: (one byte): Error code
H'90
Size
Size
ERROR
Mode
Device code
···
SUM
SUM