參數(shù)資料
型號: HD404339FS
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer with large-capacity memory
中文描述: 4位HMCS400系列的大容量存儲器微機
文件頁數(shù): 21/78頁
文件大?。?/td> 337K
代理商: HD404339FS
HD404339 Series
21
In stop mode, the system oscillator is stopped. To ensure a proper oscillation stabilization period of at least
t
RC
when clearing stop mode, execute the cancellation according to the timing chart in figure 12.
In watch and subactive modes, a timer A or
INT
0
interrupt can be accepted during the interrupt frame
period T (see figure 13).
Note:
In watch and subactive modes, an interrupt will not be properly detected if the
INT
0
high or low
level period is shorter than the interrupt frame period T. Thus, when operating in watch and
subactive modes, maintain the
INT
0
high or low level period longer than period T to ensure
interrupt detection.
Stop mode
Oscillator
Internal
clock
STOP instruction execution
t
res
t
RC
(stabilization period)
t
res
RESET
or
STOPC
Figure 12 Timing of Stop Mode Cancellation
Active mode
Interrupt strobe
Watch mode
Oscillation
stabilization
period
Active mode
T
t
RC
T:
t :
Interrupt frame length
Oscillation stabilization period
INT
0
Interrupt request
generation
(During the transition
from watch mode to
active mode only)
Tx
T
T + t
RC
T
X
2T + t
RC
Figure 13 Interrupt Frame
相關(guān)PDF資料
PDF描述
HD4074339FS 4-bit HMCS400-Series microcomputer with large-capacity memory
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