Renesas R5S72621 User Manual
Section 37 Electrical Characteristics
Page 1962 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
37.2
Power-On/Power-Off Sequence
The 1.2-V power supply (V
CC
, PLLV
CC
, USBAV
CC
, USBDV
CC
, and USBUV
CC
) and 3.3-V power
supply (PV
CC
, AV
CC
, USBAPV
CC
, and USBDPV
CC
) can be turned on and off in any order.
When turning on the power, be sure to drive both the
TRST and RES pins low; otherwise, the
output pins and input/output pins output undefined levels, resulting in system malfunction.
When turning off the power, drive the
TRST and RES pins low if the undefined output may cause
a problem.