參數(shù)資料
型號: HCD404669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計算機(jī))
文件頁數(shù): 57/142頁
文件大小: 894K
代理商: HCD404669
HD404669 Series
57
Timers
The MCU has three timer/counters (A, C, D).
Timer A: Free-running timer
Timer C: Multifunction timer
Timer D: Multifunction timer
Timer A is an 8-bit free-running timer. Timers C, D are 8-bit multifunction timers, whose functions are
listed in table 18. The operating modes are selected by software.
Table 18 Timer Functions
Functions
Timer A
Timer C
Timer D
Clock
Prescaler S
Available
Available
Available
source
Prescaler W
Available
External event
Available
Timer
Free-running
Available
Available
Available
functions
Time-base
Available
Event counter
Available
Reload
Available
Available
Watchdog
Available
Input capture
Available
Timer
Toggle
Available
Available
outputs
0 output
Available
Available
1 output
Available
Available
PWM
Available
Available
Note:
— implies not available.
Timer A
Timer A Functions:
Timer A has the following functions.
Free-running timer
Clock time-base
The block diagram of timer A is shown in figure 39.
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