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參數(shù)資料
| 型號： | HD404324 |
| 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系列微電腦（4位單片微計算機） |
| 文件頁數(shù)： | 30/94頁 |
| 文件大小： | 573K |
| 代理商： | HD404324 |
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HD404328 Series
30
Stop Mode:
The MCU enters stop mode if the STOP instruction is executed in active mode when TMA3 =
0. In this mode, the system oscillator stops, which stops all MCU functions as well.
The stop mode is terminated by a RESET input as shown in figure 12. RESET must be high for at least one
t
RC
to stabilize oscillation (refer to the AC Characteristics section). When the MCU restarts after stop mode
is cancelled, all RAM contents are retained, but the accuracy of the contents of the accumulator, B register,
W register, X/SPX register, Y/SPY register, carry flag, and serial data register cannot be guaranteed.
Stop mode
Oscillator
Internal clock
RESET
STOP instruction execution
t
res
t
RC
≥
(stabilization time)
res
t
Figure 12 Timing of Stop Mode Cancellation
Watch Mode:
The MCU enters watch mode if the STOP instruction is executed in active mode when
TMA3 = 1, or if the STOP or SBY instruction is executed in subactive mode.
The watch mode is terminated by a RESET input or a timer-A/
INT
0
interrupt request. For details of
RESET input, refer to the Stop Mode section. When terminated by a timer-A/
INT
0
interrupt request, the
MCU enters active mode if LSON is 0, or subactive mode if LSON is 1. After an interrupt request is
generated, the time required to enter active mode is t
RC
for a timer A interrupt, and T
X
(where T + t
RC
< T
X
<
2T + t
RC
) for an
INT
0
interrupt, as shown in figures 13 and 14.
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相關(guān)代理商/技術(shù)參數(shù) |
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| HD404324FS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404324H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404324S | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404324U | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404324UFS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
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