H8SXSLASH1663 datasheet(986/1158 Pages) RENESAS

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Section 21 Flash Memory (0.18-

µm F-ZTAT Version)

Rev.1.00 Jun. 07, 2006 Page 934 of 1102

REJ09B0294-0100

(3) Inquiry and Selection States

The boot program returns information from the flash memory in response to the host's inquiry

commands and sets the device code, clock mode, and bit rate in response to the host's selection

command.

Table 21.14 lists the inquiry and selection commands.

Table 21.14 Inquiry and Selection Commands

Command

Command Name

Description

H'20

Supported device inquiry

Inquiry regarding device codes

H'10

Device selection

Selection of device code

H'21

Clock mode inquiry

Inquiry regarding numbers of clock modes and

values of each mode

H'11

Clock mode selection

Indication of the selected clock mode

H'22

Multiplication ratio inquiry

Inquiry regarding the number of frequency-

multiplied clock types, the number of multiplication

ratios, and the values of each multiple

H'23

Operating clock frequency

inquiry

Inquiry regarding the maximum and minimum

values of the main clock and peripheral clocks

H'25

User MAT information inquiry

Inquiry regarding the a number of user MATs and

the start and last addresses of each MAT

H'26

Block for erasing information

Inquiry

Inquiry regarding the number of blocks and the start

and last addresses of each block

H'27

Programming unit inquiry

Inquiry regarding the unit of program data

H'3F

New bit rate selection

Selection of new bit rate

H'40

Transition to

programming/erasing state

Erasing of user MAT, and entry to programming/

erasing state

H'4F

Boot program status inquiry

Inquiry into the operated status of the boot program

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