Datasheet
Section 24 Power-Down State
Rev. 4.00 Jun 06, 2006 page 682 of 1004
REJ09B0301-0400
Table 24.1 H8S/2138 Group and H8S/2134 Group Internal States in Each Mode
Function
High-
Speed
Medium-
Speed Sleep
Module
Stop Watch Subactive Subsleep
Software
Standby
Hardware
Standby
System clock
oscillator
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Halted Halted Halted Halted Halted
Subclock input
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Halted Halted
Instruc-
tions
Function-
ing
Medium-
speed
Halted Function-
ing
Halted Subclock
operation
Halted Halted HaltedCPU
operation
Registers Function-
ing
Medium-
speed
Retained Function-
ing
Retained Subclock
operation
Retained Retained Undefined
NMI
IRQ0
IRQ1
External
interrupts
IRQ2
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Halted
DTC Function-
ing
Medium-
speed
Function-
ing
Function-
ing/halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(reset)
On-chip
supporting
module
operation
WDT1
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Subclock
operation
Subclock
operation
Subclock
operation
Halted
(retained)
Halted
(reset)
WDT0 Function-
ing
Function-
ing
Function-
ing
Function-
ing
Halted
(retained)
Subclock
operation
Subclock
operation
Halted
(retained)
Halted
(reset)
TMR0, 1 Function-
ing
Function-
ing
Function-
ing
Function-
ing/halted
(retained)
Halted
(retained)
Subclock
operation
Subclock
operation
Halted
(retained)
Halted
(reset)
FRT
TMRX, Y
Timer
connec-
tion
IIC0
IIC1
Function-
ing
Function-
ing
Function-
ing
Function-
ing/halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(reset)
SCI0
SCI1
SCI2
PWM
PWMX
HIF
D/A
A/D
Function-
ing
Function-
ing
Function-
ing
Function-
ing/halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
RAM Function-
ing
Function-
ing
Function-
ing (DTC)
Function-
ing
Retained Function-
ing
Retained Retained Retained
I/O
Function-
ing
Function-
ing
Function-
ing
Function-
ing
Retained
Function-
ing
Function-
ing
Retained
High
impedance
Note: “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).