參數資料
型號: HD4074829
廠商: Hitachi,Ltd.
英文描述: AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅動電路的微計算機)
中文描述: 由于微機安裝有LCD控制器/驅動電路(帶液晶控制/驅動電路的微計算機)
文件頁數: 41/147頁
文件大小: 519K
代理商: HD4074829
HD404829R Series
41
Notes: 2. When the MCU is in watch mode or subactive mode, if the high level period before the falling
edge of
I NT
0
is shorter than the interrupt frame,
I NT
0
is not detected. Also, if the low level period
after the falling edge of
I NT
0
is shorter than the interrupt frame,
I NT
0
is not detected.
Edge detection is shown in figure 24. The level of the
INT
0
signal is sampled by a sampling
clock. When this sampled value changes to low from high, a falling edge is detected.
In figure 25, the level of the
I NT
0
signal is sampled by an interrupt frame. In (a) the sampled
value is low at point A, and also low at point B. Therefore, a falling edge is not detected. In (b),
the sampled value is high at point A, and also high at point B. A falling edge is not detected in
this case either.
When the MCU is in watch mode or subactive mode, keep the high level and low level period of
INT
0
longer than interrupt frame.
High
Low
INT
Sampling
0
Low
Figure 24 Edge Detection
A: Low
B: Low
INT
Interrupt
frame
0
A: High
B: High
INT
Interrupt
frame
0
(a) High level period
(b) Low level period
Figure 25 Sampling Example
相關PDF資料
PDF描述
HD404828R AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅動電路的微計算機)
HD404829R AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅動電路的微計算機)
HD4048412 4-Bit Single-Chip Microcomputer
HD4048412FS 4-Bit Single-Chip Microcomputer
HD4048412H RELAY BASE
相關代理商/技術參數
參數描述
HD4074829FS 制造商:Renesas Electronics Corporation 功能描述:
HD4074829H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074829TF 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD4074849 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4074849FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer