Renesas H8S/2100 Series Hardware Manual page 822

Section 24 Flash Memory
(i) Boot Program Status Inquiry
The boot program will return indications of its present state and error condition. This inquiry can
be made in the inquiry/selection state or the programming/erasing state.
Command H'4F
• Command, H'4F, (one byte):
Response H'5F
• Response, H'5F, (one byte): Response to boot program state inquiry
• Size (one byte): The number of bytes. This is fixed to 2.
• Status (one byte): Status of the boot program
• ERROR (one byte): Error status
ERROR = 0 indicates normal operation.
ERROR = 1 indicates error has occurred.
• SUM (one byte): Checksum
Table 24.19 Status Codes
Code Description
H'11 Device selection wait
H'12 Clock mode selection wait
H'13 Bit rate selection wait
H'1F Programming/erasing state transition wait (bit rate selection is completed)
H'31 Programming state for erasure
H'3F Programming/erasing selection wait (erasure is completed)
H'4F Program data receive wait
H'5F Erase block specification wait (erasure is completed)
Rev. 1.00 May 09, 2008 Page 796 of 954
REJ09B0462-0100
Inquiry regarding boot program's state
Size Status ERROR SUM