RX610 Group
26. ROM (Flash Memory for Code Storage)
R01UH0032EJ0120 Rev.1.20
Page 824 of 1006
Feb 20, 2013
ROMAE Bit (ROM Access Violation)
This bit indicates whether a ROM access violation occurred.
When the ROMAE bit is set to 1, the ILGLERR bit in FSTATR0 is set to 1, placing the FCU in the command-locked
state.
[Setting conditions]
•
A read command is issued for ROM programming/erasure addresses 00E0 0000h to 00EF FFFFh when the FCU is in
ROM P/E normal mode and the FENTRYR.FENTRY1 bit* is set to 1.
•
A read command is issued for ROM programming/erasure addresses 00F0 0000h to 00FF FFFFh when the FCU is in
ROM P/E normal mode and the FENTRYR.FENTRY0 bit is set to 1.
•
A command is issued for ROM programming/erasure addresses 00E0 0000h to 00EF FFFFh when the FENTRY1 bit
is set to 0.
•
A command is issued for ROM programming/erasure addresses 00F0 0000h to 00FF FFFFh when the FENTRY0 bit
is set to 0.
•
A read command is issued for ROM read addresses FFE0 0000h to FFFF FFFFh when FENTRYR is set to other
than 0000h.
[Clearing condition]
•
When 0 is written after reading 1
Note: * Cannot be used in a product whose ROM size is equal to or smaller than 1 Mbyte.