R5F72115D160FPV datasheet(1002/1228 Pages) RENESAS

1002 / 1228 page

Section 21 Flash Memory

Rev. 2.00 May. 08, 2008 Page 978 of 1200

REJ09B0344-0200

(15) Inquiry on Boot Program State

In response to the command for inquiry on the state of the boot program, the boot program returns

an indicator of its current state and error information. This inquiry can be made in the inquiry-and-

selection state or the programming/erasure state.

Command

H'4F

• Command H'4F (1 byte): Inquiry on boot program state

Response

H'5F

Size

STATUS

ERROR

SUM

• Response H'5F (1 byte): Response to the inquiry regarding boot-program state

• Size (1 byte): The number of characters in STATUS and ERROR (fixed at 2)

• STATUS (1 byte): State of the standard boot program

See table 21.14, Status Codes.

• ERROR (1 byte): Error state (indicates whether the program is in normal operation or an error

has occurred)

ERROR = 0: Normal

ERROR

≠ 0: Error

See table 21.15, Error Codes.

• SUM (1 byte): Checksum

Table 21.14 Status Codes

Code

Description

H'11

Waiting for device selection

H'12

Waiting for clock-mode selection

H'13

Waiting for bit-rate selection

H'1F

Waiting for transition to programming/erasure status (bit-rate selection complete)

H'31

Erasing the user MAT or user boot MAT

H'3F

Waiting for programming/erasure selection (erasure complete)

H'4F

Waiting to receive data for programming (programming complete)

H'5F

Waiting for erasure block specification (erasure complete)

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