參數(shù)資料
型號: M38003M8-XXXSS
廠商: Mitsubishi Electric Corporation
元件分類: DC/DC變換器
英文描述: 1 watt dc-dc converters
中文描述: 1瓦的DC - DC轉換器
文件頁數(shù): 62/173頁
文件大小: 4203K
代理商: M38003M8-XXXSS
2-14
3800 GROUP USER’S MANUAL
APPLICATION
2.2 Timer
Control procedure :
Figure 2.2.12 shows a control procedure.
Fig. 2.2.12 Control procedure [Clock function]
RESET
Initialization
SEI
.
TM
ICON1
.
PREX
TX
.
TM
.
CLI
(Address : 23
16
)
(Address : 3E
16
), bit4
(Address : 24
16
)
(Address : 25
16
)
(Address : 23
16
), bit3
XXXX
1
X
00
2
1
256 – 1
256 – 1
0
G
G
G
G
G
G
G
X :
This bit is not used in this application.
Set it to “0” or “1.” It’s value can be disregarded.
Timer X interrupt processing routine
CLT (
Note 2
)
CLD (
Note 3
)
Push register to stack
RTI
Y
N
Clock stop
Clock count up (1/4 second-year)
Pop registers
Check if the clock has already been set.
Count up the clock.
Pop registers which is pushed to stack
Main processing
.
[Processing for completion of setting clock]
(
Note 1
)
PREX
TX
IREQ1
(Address : 24
16
)
(Address : 25
16
)
(Address : 3C
16
), bit4
256 – 1
256 – 1
0
Note 1:
This processing is performed only
at completing to set the clock.
When restarting the clock from zero
second after completing to set the
clock, re-set timers.
G
G
G
G
G
Note 2:
When using the Index X mode flag (T).
Note 3:
When using the Decimal mode flag (D).
Push the register used in the interrupt
processing routine into the stack.
Timer X : Timer mode
Timer X interrupt : Enabled
Set “division ratio – 1” to the Prescaler X
and Timer X.
Timer X count : Operating
Interrupts : Enabled
All interrupts : Disabled
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