參數(shù)資料
型號: HCD404084
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計算機)
中文描述: 低電壓如同在微機芯片的A / D轉(zhuǎn)換器(帶片上的A / D轉(zhuǎn)換器的低壓微計算機)
文件頁數(shù): 51/162頁
文件大?。?/td> 482K
代理商: HCD404084
HD404374/HD404384/HD404389/HD404082/HD404084 Series
51
Watch mode
Oscillation
stabilization
period
Active mode
Active mode
Interrupt
strobe
INT
0,
WU
0
Interrupt
request generation
T
T
t
RC
T
X
T: Interrupt frame period
t
RC
: Oscillation stabilization period
Only in case of
transition to active
mode
Note: If the time from the fall of the
INT
0
or
WU
0
signal until the interrupt is accepted and
active mode is entered and is designated T
X
, then T
X
will be in the following range :
T+t
RC
T
X
2T+t
RC
(MIS1, MIS0=00)
t
RC
T
X
T+t
RC
(MIS1, MIS0=01 or 10)
Figure 14 Interrupt Frame
Miscellaneous Register (MIS: $005)
Bit
Read/Write
Reset
Bit name
3
W
0
MIS3
2
W
0
Not used*
4
1
W
0
MIS1*
1
0
W
0
MIS0*
1
Interrupt Frame
period T(
ms
)*
2
0.24414
3.90625
3.90625
Oscillation Settling
Time t
RC
(
ms
)*
2
0.12207(0.24414)*
3
7.8125
31.25
Not used
MIS1
MIS0
0
1
0
1
0
1
Oscillator Circuit
Condition
External clock input, CR oscillation frequency
Ceramic resonator
Crystal resonator
Notes: *1. Applies to HD404374 series.
*2. T and t
RC
values are for use of a 32.768 kHz crystal oscillator at the X1-X2 pins.
*3. This value applies only in case of direct transition operation.
*4. Must always be cleared to 0. Setting to 1 will cause incorrect operation.
See pull-up
MOS control,
figure 30
Figure 15 Miscellaneous Register (MIS)
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