Datasheet

Table Of Contents
Section 22 Power-Down Modes
Page 682 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Table 22.1 LSI Internal States in Each Mode
Function High-Speed
Medium-
Speed
Sleep
Module
Stop
Software
Standby
Hardware
Standby
System clock pulse
generator
Functioning Functioning Functioning Functioning Halted Halted
Instructions Halted CPU
Registers
Functioning Medium-
speed
operation
(retained)
High/
medium-
speed
operation
Halted
(retained)
Halted
(undefined)
NMI External
interrupts
IRQ0 to 5, 7
Functioning Functioning Functioning Functioning Functioning Halted
DMAC
DTC
Functioning Medium-
speed
operation
Functioning Halted
(retained)
Halted
(retained)
Halted
(reset)
I/O Functioning Functioning Functioning Functioning Retained High
impedance
TPU
TMR
Functioning Functioning Functioning Halted
(retained)
Halted
(retained)
Halted
(reset)
WDT Functioning Functioning Functioning Functioning Halted
(retained)
Halted
(reset)
D/A Functioning Functioning Functioning Halted
(retained)
Halted
(retained)
Halted
(reset)
A/D
SCI
Functioning Functioning Functioning Halted
(reset)
Halted
(reset)
Halted
(reset)
USB Halted
(retained)
Halted
(retained)
USB
operating
clock
oscillator
Peripheral
functions
PLL circuit
Functioning Function not
guaranteed
Functioning
Halted Halted
Halted
(reset)
RAM Functioning Functioning Functioning Functioning Retained Retained
Notes: “Halted (retained)” means that internal register values are retained. The internal state is
“operation suspended.”
“Halted (reset)” means that internal register values and internal states are initialized.
In module stop mode, only modules for which a stop setting has been made are halted
(reset or retained).