參數(shù)資料
型號: HD404654S
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機(jī)
文件頁數(shù): 55/109頁
文件大?。?/td> 430K
代理商: HD404654S
HD404654 Series
55
Bit
Initial value
Read/Write
Bit name
3
Undefined
W
TWCU3
2
Undefined
W
TWCU2
0
Undefined
W
TWCU0
1
Undefined
W
TWCU1
Timer write register C (upper digit) (TWCU: $00F)
Figure 40 Timer Write Register C Upper Digit (TWCU)
Timer read register C (TRCL: $00E, TRCU: $00F): Read-only register consisting of a lower digit
(TRCL) and an upper digit (TRCU) that holds the count of the timer C upper digit as shown in figures
41 and 42. The upper digit (TRCU) must be read first. At this time, the count of the timer C upper digit
is obtained, and the count of the timer C lower digit is latched to the lower digit (TRCL). After this, by
reading TRCL, the count of timer C when TRCU is read can be obtained.
Bit
Initial value
Read/Write
Bit name
3
Undefined
R
TRCL3
2
Undefined
R
TRCL2
0
Undefined
R
TRCL0
1
Undefined
R
TRCL1
Timer read register C (lower digit) (TRCL: $00E)
Figure 41 Timer Read Register C Lower Digit (TRCL)
Bit
Initial value
Read/Write
Bit name
3
Undefined
R
TRCU3
2
Undefined
R
TRCU2
0
Undefined
R
TRCU0
1
Undefined
R
TRCU1
Timer read register C (upper digit) (TRCU: $00F)
Figure 42 Timer Read Register C Upper Digit (TRCU)
Timer D
Timer D Functions:
Timer D has the following functions.
Free-running/reload timer
External event counter
Timer output operation (toggle, 0, 1, and PWM outputs)
Input capture timer
The block diagram for each operation mode of timer D is shown in figures 43 (A) and (B).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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