Rev. 2.0, 11/00, page 68 of 1037
Table 4.1
Internal Chip States in Each Mode
Function
High-
Speed
Medium-
Speed
Sleep
Module
Stop
Watch
Subactive
Subsleep
Standby
System clock
Functioning Functioning Functioning Functioning Halted
Halted
Halted
Halted
Subclock pulse
generator
Functioning Functioning Functioning Functioning Functioning Functioning Functioning Functioning
Instructions
Halted
Halted
Halted
Halted
CPU
operation
Registers
Functioning Medium-
speed
Retained
Functioning
Retained
Subclock
operation
Retained
Retained
NIMI
IRQ0
IRQ1
Functioning Functioning Functioning Functioning
IRQ2
IRQ3
IRQ4
External
interrupts
IRQ5
Functioning Functioning Functioning Functioning
Halted
Halted
Functioning Halted
Timer A
Functioning Functioning Functioning Functioning
/halted
(retained)
Subclock
operation
Subclock
operation
Subclock
operation
Halted
(retained)
Timer B
Timer J
Timer L
Timer R
Functioning
/halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
Timer X1
Functioning Functioning Functioning
Functioning
/halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Watchdog
timer
Functioning Functioning Functioning Functioning Halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
PSU
Functioning Subclock
operation
Subclock
operation
Subclock
operation
Halted
IIC
SCI1
Functioning
/halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
SCI2
14-bit PWM
8-bit PWM
Functioning
/halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
Halted
(retained)
A/D
Functioning Functioning Functioning
Functioning
/halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
I/O
Functioning Functioning Retained
Functioning Halted
Functioning Retained
Halted
12-bit PWM
On-chip
supporting
module
operation
Servo
Functioning Functioning Halted
(reset)
Functioning
/halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Halted
(reset)
Notes: 1. "Halted (retained)" means that internal register values are retained. The internal state
is "operation suspended."
2. "Halted (reset)" means that internal register values and internal states are initialized.
3. In module stop mode, only modules for which a stop setting has been made are halted
(reset or retained).
4. In the power-down mode, the analog section of the servo circuits are not turned off,
therefore Vcc (Servo) current does not go low. When power-down is needed,
externally shut down the analog system power.
Summary of Contents for Hitachi H8S/2191
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