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Section 6 Power-Down Modes
Rev. 4.00 Sep. 14, 2005 Page 164 of 982
REJ09B0023-0400
Table 6.1
States of Power-Down Modes
State
*
Mode Transition
Conditions CPG CPU
CPU
Register
On-Chip
Memory
On-Chip
Peripheral
Modules
External
Memory
Canceling
Procedure
Sleep mode
Execute SLEEP
instruction with STBY bit
cleared to 0 in STBCR
Runs Halts Held
Halts
(The contents
are retained.)
The UBC stops.
Other modules
continue to run.
Refreshed
automati-cally
1. Interrupt
2. Reset
Standby mode
Execute SLEEP
instruction with STBY bit
set to 1 in STBCR
Halts Halts Held
Halts
(The contents
are retained.)
Halt Self-refreshed
1.
Interrupt
2. Reset
Module standby
function
Set the MSTP bits in
STBCR, STBCR2,
STBCR3, and STBCR4
to 1 (with the exception
of the MSTP bits for the
USB module; clear these
bits).
Runs Runs Held
The
specified
module stops
(the contents are
retained).
Specified
module halts
Refreshed
automati-cally
1.
Clear MSTP bit to
0. (with the
exception of the
MSTP bits for the
USB module; set
these bits).
2. Power-on
reset
Note:
*
The pin state is retained or set to high impedance. For details, see Appendix A, Pin
States.
6.1.2 Reset
A reset is used at power-on or to re-execute from the initial state. This LSI supports two types of
reset: power-on reset and manual reset. In power-on reset, any processing to be currently executed
is terminated and any events not executed are canceled to execute reset processing immediately. In
manual reset, processing required to maintain external memory contents is continued. The
following shows the conditions in which power-on reset or manual reset occurs.
•
Power-on reset
1. A low level signal is input to the
RESETP
pin.
2. The WDT counter overflows if WDT starts counting while the WT/
IT
and RSTS bits of the
WTCSR are set to 1 and cleared to 0, respectively.
3. An H-UDI reset occurs. (For details on H-UDI reset, refer to section 15, User Debugging
Interface (H-UDI).)
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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