參數(shù)資料
型號: HD404652S
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機
文件頁數(shù): 61/109頁
文件大?。?/td> 430K
代理商: HD404652S
HD404654 Series
61
Bit
Initial value
Read/Write
Bit name
3
Undefined
W
TWDU3
2
Undefined
W
TWDU2
0
Undefined
W
TWDU0
1
Undefined
W
TWDU1
Timer write register D (upper digit) (TWDU: $012)
Figure 47 Timer Write Register D Upper Digit (TWDU)
Timer read register D (TRDL: $011, TRDU: $012): Read-only register consisting of a lower digit
(TRDL) and an upper digit (TRDU) as shown in figures 48 and 49. The operation of timer read register
D is basically the same as that of timer read register C (TRCL: $00E, TRCU: $00F).
When the input capture timer operation is selected and if the count of timer D is read after a trigger is
input, either the lower or upper digit can be read first.
Bit
Initial value
Read/Write
Bit name
3
Undefined
R
TRDL3
2
Undefined
R
TRDL2
0
Undefined
R
TRDL0
1
Undefined
R
TRDL1
Timer read register D (lower digit) (TRDL: $011)
Figure 48 Timer Read Register D Lower Digit (TRDL)
Bit
Initial value
Read/Write
Bit name
3
Undefined
R
TRDU3
2
Undefined
R
TRDU2
0
Undefined
R
TRDU0
Timer read register D (upper digit) (TRDU: $012)
1
Undefined
R
TRDU1
Figure 49 Timer Read Register D Upper Digit (TRDU)
Port mode register C (PMRC: $025): Write-only register that selects R4
0
/EVND pin function as shown
in figure 50. It is reset to $0 by MCU reset.
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參數(shù)描述
HD404654 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
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