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參數資料
| 型號： | HD4074449 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-bit HMCS400-Series microcomputer(4位單片微計算機) |
| 中文描述： | 4位HMCS400系列微機（4位單片微計算機） |
| 文件頁數： | 33/123頁 |
| 文件大?。?/td> | 726K |
| 代理商： | HD4074449 |
HD404449 Series
33
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
*
1
0.12207 ms
0.24414 ms
*
2
7.8125 ms
62.5 ms
Oscillation circuit conditions
External clock input
Ceramic oscillator or crystal
0
1
1
1
0
1
15.625 ms
125 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
Figure 18 Miscellaneous Register (MIS)
Direct Transition from Subactive Mode to Active Mode:
Available by controlling the direct transfer on
flag (DTON: $020, bit 3) and the low speed on flag (LSON: $020, bit 0). The procedures are described
below:
Set LSON to 0 and DTON to 1 in subactive mode.
Execute the STOP or SBY instruction.
The MCU automatically enters active mode from subactive mode after waiting for the MCU internal
processing time and oscillation stabilization time (Figure 19).
Notes: 1. The DTON flag ($020, bit 3) can be set only in subactive mode. It is always reset in active
mode.
2. The transition time (T
D
) from subactive mode to active mode:
t
RC
< T
D
< T + t
RC
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相關代理商/技術參數 |
參數描述 |
|---|---|
| HD4074449H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
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| HD4074459 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-bit HMCS400-series microcomputers |
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| HD4074509FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
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