Datasheet

Section 21 Flash Memory
Page 1128 of 1384 R01UH0310EJ0500 Rev. 5.00
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
(16) Boot Program Status Inquiry
The boot program will return indications of its present state and error condition in response to a
boot program status inquiry command. This inquiry can be made in the inquiry/selection state or
the programming/erasing state.
Command H'4F
• Command, H'4F, (1 byte): Inquiry regarding boot program states
Response H'5F Size STATUS ERROR SUM
• Response, H'5F, (1 byte): Response to the boot program state inquiry
• Size (1 byte): The number of bytes. This is fixed to 2.
• STATUS (1 byte): State of the boot program
Table 21.10 Status Code
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 completed)
H'4F Programming data transmit wait (programming completed)
H'5F Erasure block specification wait (erasure completed)