RX610 Group
27. Data Flash (Flash Memory for Data Storage)
R01UH0032EJ0120 Rev.1.20
Page 936 of 1006
Feb 20, 2013
(2)
Data Mat Blank Check
In response to a data mat blank check command sent from the host, the RX610 checks whether the data mat is completely
erased. When the data mat is completely erased, the RX610 returns a response (06h). If the data mat has an unerased area,
the RX610 returns an error response (sends E2h and 52h in that order).
Command
62h
Response
06h
Error response
E2h
52h
27.9
Usage Notes
(1)
Protection of the Data Mat Immediately after a Reset
As the initial values of DFLRE and DFLWE are 0000h, programming, erasure, and reading of the data mat are disabled
immediately after a reset. To read data from the data mat, set DFLRE appropriately before accessing the data mat. To
program or erase the data mat, set DFLWE appropriately before issuing an FCU command for programming or erasure.
If an attempt is made to read, program, or erase the data mat without setting the registers, the FCU detects the error and
enters the command-locked state.
(2)
Other Points to Note
The other points to note are the same as for the ROM. See section 26.13, Usage Notes. The data flash memory also has a
blank checking operation, so interpret references to programming or erasure as meaning programming, erasure, or blank
checking.
Summary of Contents for RX600 Series
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