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Section 5 Power-Down Modes
Rev. 6.00 Sep 12, 2006 page 91 of 526
REJ09B0326-0600
Bits 6 to 4
Standby Timer Select 2 to 0 (STS2 to STS0):
These bits designate the time the
CPU and peripheral modules wait for stable clock operation after exiting from standby mode or
watch mode to active mode due to an interrupt. The designation should be made according to the
clock frequency so that the waiting time is at least 10 ms.
Bit 6: STS2
Bit 5: STS1
Bit 4: STS0
Description
0
0
0
Wait time = 8,192 states
(initial value)
1
Wait time = 16,384 states
1
0
Wait time = 32,768 states
1
Wait time = 65,536 states
1
*
*
Wait time = 131,072 states
Legend:
*
Don’t care
Bit 3
Low Speed on Flag (LSON):
This bit chooses the system clock (
φ
) or subclock (
φ
SUB
) as
the CPU operating clock when watch mode is cleared. The resulting operation mode depends on
the combination of other control bits and interrupt input.
Bit 3: LSON
Description
0
The CPU operates on the system clock (
φ
) (initial
value)
1
The CPU operates on the subclock (
φ
SUB
)
Bits 2
Reserved Bits:
Bit 2 is reserved: it is always read as 1 and cannot be modified.
Bits 1 and 0
Active (Medium-Speed) Mode Clock Select (MA1, MA0):
Bits 1 and 0 choose
φ
osc
/128,
φ
osc
/64,
φ
osc
/32, or
φ
osc
/16 as the operating clock in active (medium-speed) mode and
sleep (medium-speed) mode. MA1 and MA0 should be written in active (high-speed) mode or
subactive mode.
Bit 1: MA1
Bit 0: MA0
Description
0 0
φ
osc
/16
1
φ
osc
/32
1 0
φ
osc
/64
1
φ
osc
/128 (initial
value)
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 ...