參數(shù)資料
型號: HD40A4639R
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 71/133頁
文件大?。?/td> 803K
代理商: HD40A4639R
HD404639R Series
71
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
56 and 57. The operation of timer read register C is basically the same as that of timer read register B
(TRBL: $00A, TRBU: $00B).
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 56 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 57 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 58 (A) and (B).
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