SH7211 Datasheet, PDF (979/1228 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family

Section 21 Flash Memory
(b) Device Selection
In response to the device selection command, the boot program sets the specified device as the
selected device. The boot program will return the information on the selected device in response to
subsequent inquiries.
Command H'10
Size
Device code
SUM
• Command H'10 (1 byte): Device selection
• Size (1 byte): Number of characters in the device code (fixed at 4)
• Device code (4 bytes): A device code that was returned in response to an inquiry on supported
devices (ASCII encoded)
• SUM (1 byte): Checksum
Response
H'06
• Response H'06 (1 byte): Response to device selection
This is the ACK code and is returned when the specified device code matches one of the
supported devices.
Error
response
H'90
ERROR
• Error response H'90 (1 byte): Error response to device selection
• ERROR (1 byte): Error code
H'11: Sum-check error
H'21: Non-matching device code
(c) Inquiry on Clock Modes
In response to the inquiry on clock modes, the boot program returns the number of available clock
modes.
Command H'21
• Command H'21 (1 byte): Inquiry on clock modes
Response
H'31
Size
Mode
…
SUM
Rev. 2.00 May. 08, 2008 Page 955 of 1200
REJ09B0344-0200