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Appendix B Internal I/O Registers
Rev. 6.00 Sep 12, 2006 page 472 of 526
REJ09B0326-0600
TCSRW—Timer control/status register W
H'FFBE
Watchdog timer
Bit
Initial value
Read/Write
7
B6WI
1
R
6
TCWE
0
R/(W)
5
B4WI
1
R
4
TCSRWE
0
R/(W)
3
B2WI
1
R
0
WRST
0
R/(W)
2
WDON
0
R/(W)
1
B0WI
1
R
*
*
*
*
Watchdog timer reset
0
[Clearing conditions]
1
[Setting condition]
When TCW overflows and a reset signal is generated
• Reset by
RES
pin
• When TCSRWE = 1, and 0 is written in both B0WI and WRST
Bit 0 write inhibit
0
Bit 0 is write-enabled
Bit 0 is write-protected
1
Watchdog timer on
0
Watchdog timer operation is disabled
Watchdog timer operation is enabled
1
Bit 2 write inhibit
0
Bit 2 is write-enabled
Bit 2 is write-protected
1
Timer control/status register W write enable
0
Data cannot be written to TCSRW bits 2 and 0
Data can be written to TCSRW bits 2 and 0
1
Bit 4 write inhibit
0
Bit 4 is write-enabled
Bit 4 is write-protected
1
Timer counter W write enable
0
Data cannot be written to TCW
Data can be written to TCW
1
Bit 6 write inhibit
0
Bit 6 is write-enabled
Bit 6 is write-protected
1
Note:
*
Write is permitted only under certain conditions.
Содержание F-ZTAT H8/3642A Series
Страница 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Страница 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Страница 21: ...Rev 6 00 Sep 12 2006 page xix of xx Appendix E Product Code Lineup 522 Appendix F Package Dimensions 524 ...
Страница 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Страница 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Страница 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Страница 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Страница 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Страница 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Страница 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...