RX610 Group
26. ROM (Flash Memory for Code Storage)
R01UH0032EJ0120 Rev.1.20
Page 844 of 1006
Feb 20, 2013
Reset state
RES# = 0
Boot mode
User boot mode
Single-chip mode
RES# = 0
RES# = 0
RES# = 0
RES# = 1
MD1 = 0
MD0 = 1
RES# = 1
MD1 = 1
MD0 = 0
RES# = 1
MD1 = 1
MD0 = 1
On-board programming mode
Single-chip mode
EXBE = 0
EXBE = 1
Mode can shift
ROME = 0
EXBE = 0
ROME = 0
EXBE = 1
ROME = 0
Note:
*
Initial value after a reset
ROME = 0
EXBE = 0
EXBE = 1
On-chip-ROM-disabled
expansion mode
On-chip ROM: Disabled
External bus: Enabled
ROME = 0
EXBE = 1
On-chip-ROM-enabled
expansion mode
On-chip ROM: Enabled
External bus: Enabled
ROME = 1
EXBE = 1
On-chip ROM: Enabled
*
External bus: Disabled
ROME = 1
EXBE = 0
On-chip ROM: Disabled
External bus: Disabled
ROME = 0
EXBE = 0
On-board programming mode
Figure 26.4 Transitions between Operating Modes in Terms of the ROM
Summary of Contents for RX600 Series
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