參數(shù)資料
型號: HD40A4639R
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 31/133頁
文件大?。?/td> 803K
代理商: HD40A4639R
HD404639R Series
31
t
RC
T
T
X
T
T:
t :
Note
INT
0
signal until the interrupt is accepted and
active mode is entered is T
X
, then T
X
will be in the following range :
T + t
RC
T
X
2T + t
RC
Interrupt frame length
Oscillation stabilization period
(During the transition
from watch mode to
active mode only)
Interrupt strobe
INT
0
Interrupt request
generation
Active mode
Watch mode
Active mode
Oscillation
stabilization period
Figure 17 Interrupt Frame
Bit
Initial value
Read/Write
Bit name
3
0
W
MIS3
2
0
W
MIS2
0
0
W
MIS0
1
0
W
MIS1
Miscellaneous register (MIS: $00C)
MIS1
0
MIS0
T
1
0
0.24414 ms
t
RC
0.12207 ms
0.24414 ms
7.8125 ms
31.25 ms
Oscillation circuit conditions
External clock input
Ceramic oscillator
0
1
1
1
0
1
15.625 ms
62.5 ms
Not used
Notes: 1.
2.
The values of T and t
RC
are applied when a 32.768-kHz crystal oscillator is used.
The value is applied only when direct transfer operation is used.
Buffer control.
Refer to figure 38.
MIS3
MIS2
Crystal oscillator
*
1
*
2
*
Figure 18 Miscellaneous Register (MIS)
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