H8SXSLASH1663 datasheet(1005/1158 Pages) RENESAS

1005 / 1158 page

Section 21 Flash Memory (0.18-

µm F-ZTAT Version)

Rev.1.00 Jun. 07, 2006 Page 953 of 1102

REJ09B0294-0100

(h) Boot Program State 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):

Inquiry regarding boot program's state

Response

H'5F

Size

Status

ERROR

SUM

• 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): State of the boot program

• ERROR (one byte): Error status

ERROR = 0 indicates normal operation.

ERROR = 1 indicates error has occurred.

• SUM (one byte): Sum check

Table 21.16 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 is completed)

H'4F

Program data receive wait

H'5F

Erase block specification wait (erasure is completed)

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