RX610 Group
27. Data Flash (Flash Memory for Data Storage)
R01UH0032EJ0120 Rev.1.20
Page 933 of 1006
Feb 20, 2013
27.8
Boot Mode
To program or erase the data mat in boot mode, send control commands and programming data from the host. For the
system configuration and settings in boot mode, see section 26.10, Boot Mode. This section describes only the commands
dedicated for the data flash.
27.8.1
Inquiry/Selection Host Commands
Table 27.9 shows the inquiry/selection host commands dedicated to the data flash. The data mat inquiry and data mat
information inquiry commands are used in the step of "Inquiry regarding mat programming information" in the flowchart
shown in figure 26.29 (Example of Procedure to Use Inquiry/Selection Host Commands for User Mat/User Boot Mat) in
section 26.10.5, Inquiry/Selection Host Command Wait State.
Table 27.9 Inquiry/Selection Host Commands (only for Data Flash)
Host Command Name
Function
Data mat inquiry
Inquires regarding the availability of data mat
Data mat information inquiry
Inquires regarding the number of data mats and the start and end addresses
Each host command is described in detail below. The "command" in the description indicates a command sent from the
host to the RX610 and the "response" indicates a response sent from the RX610 to the host. The "checksum" is byte-size
data calculated so that the sum of all bytes to be sent by the RX610 becomes 00h.
(1)
Data Mat Inquiry
In response to a data mat inquiry command sent from the host, the RX610 returns the information concerning the
availability of data mats.
Command
2Ah
Response
3Ah
Size
Mat availability
SUM
[Legend]
Size (1 byte):
Number of characters in the mat availability field (fixed at 1)
Mat availability (1 byte):
Availability of data mats (fixed at 21h)
21h: Data mat is available
SUM (1 byte):
Checksum