參數(shù)資料
型號: HD404458
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(shù): 79/120頁
文件大?。?/td> 692K
代理商: HD404458
HD404459 Series
79
Detection edge select register 2 (ESR2: $027): Write-only register that selects the detection edge of
signals input to pin EVND (figure 66). It is reset to $0 by MCU reset.
Bit
Initial value
Read/Write
Bit name
3
0
W
ESR23
2
0
W
ESR22
0
Not used
1
Not used
Detection edge register 2 (ESR2: $027)
ESR23
0
1
ESR22
0
1
0
1
EVND detection edge
No detection
Falling-edge detection
Rising-edge detection
Double-edge detection
*
Note:
*
Both falling and rising edges are detected.
Figure 66 Detection Edge Select Register 2 (ESR2)
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參數(shù)描述
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