
Section 19 Flash Memory (0.18-
m F-ZTAT Version)
Rev. 1.00 Mar. 02, 2006 Page 650 of 798
REJ09B0255-0100
(4) Inquiry/Selection State
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.
Inquiry and selection commands are listed in table 19.11.
Table 19.11 Inquiry and Selection Commands
Command
Command Name
Description
H'20
Supported Device Inquiry
Inquiry regarding device code and product name
H'10
Device Selection
Selection of device code
H'21
Clock Mode Inquiry
Inquiry regarding number of clock modes and
values of each mode
H'11
Clock Mode Selection
Indication of the selected clock mode
H'22
Division Ratio Inquiry
Inquiry regarding the number of types of division
ratios, and the number and values of each ratio
type
H'23
Operating Clock Frequency Inquiry
Inquiry regarding the maximum and minimum
values of the main clock and peripheral clock
H'24
User Boot MAT Information Inquiry
Inquiry regarding the number of user boot MATs
and the start and last addresses of each MAT
H'25
User MAT Information Inquiry
Inquiry regarding the number of user MATs and
the start and last addresses of each MAT
H'26
Erased Block 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 size of program data
H'3F
New Bit Rate Selection
Selection of the new bit rate
H'40
Transition to Programming/Erasing
State
Erasure of user MAT and user boot MAT, and
transition to programming/erasing state
H'4F
Boot Program Status Inquiry
Inquiry into the processing status of the boot
program
The selection commands, which are device selection (H'10), clock mode selection (H'11), and new
bit rate selection (H'3F), should be transmitted from the host in that order. These commands are
needed in all cases. When two or more selection commands are transmitted at the same time, the
last command will be valid.