R01UH0823EJ0100 Rev.1.00
Page 100 of 1823
Jul 31, 2019
RX23W Group
3. Operating Modes
3.4
Transitions of Operating Modes
3.4.1
Operating Mode Transitions Determined by the Mode-Setting Pins
shows operating mode transitions determined by the settings of the MD pin and the UB pin.
Figure 3.1
Mode-Setting Pin Levels and Operating Modes
Boot mode
(USB interface)
MD = High
RES# = High
RES# = Low
RES# = Low
RES# = Low
MD = Low
UB = High
RES# = High
MD = Low
UB = Low
RES# = High
Single-chip mode
Reset
Boot mode
(SCI)