參數(shù)資料
型號: TMP90CM38
廠商: Toshiba Corporation
元件分類: 通用總線功能
英文描述: High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit A/D,D/A Converter,RAM,ROM,General Serial Interface,Multifuction Timer/Event Counter,Signal Selector Circuit,PWM Output(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位A/D,D/A轉(zhuǎn)換器,ROM,RAM,通用串行接口,多功能定時器/事件計數(shù)器,信號選擇電路,PWM輸出))
中文描述: 采用先進(jìn)的CMOS高速8位微控制器,集成8位A / D,D / A轉(zhuǎn)換,內(nèi)存,光盤,通用串行接口,Multifuction定時器/事件計數(shù)器,信號選擇器電路,PWM輸出(高速,先進(jìn)的的CMOS 8位微控制器(芯片集成了8位A / D轉(zhuǎn)換,數(shù)/模轉(zhuǎn)換器,ROM和RAM內(nèi)存,通用串行接口,多功能定時器/事件計數(shù)器,信號選擇電路,脈寬調(diào)制輸出))
文件頁數(shù): 99/172頁
文件大小: 5946K
代理商: TMP90CM38
TOSHIBA CORPORATION
99
TMP90CM38
Frequency measurement
The frequency of the external clock can be measured in
this mode. The clock is input through the TI4 pin, and
its frequency is measured by the 8-bit timers (Timer 0
and Timer 1) and the 16-bit timer/event counter (Timer
4).
The TI4 pin input should be selected for the input clock
of Timer 4. The value of the up-counter is loaded into
the capture register CAP1 at the rise edge of the timer
flip-flop TFF1 of 8-bit timers (Timer 0 and Timer 1), and
CAP2 at its fall edge.
The frequency is is calculated by the difference
between the loaded values in CAP1 and CAP2 when
the interrupt (INTT0 or INTT1) is generated by either 8-
bit timer.
Figure 3.7 (6). Frequency Measurement
For example, if the value for the level “1” width of TFF1
of the 8-bit timer is set to 0.5 sec. and the difference
between CAP1 and CAP2 is 100, the frequency will be
100/0.5 [sec.] = 200[Hz].
相關(guān)PDF資料
PDF描述
TMP90CM40 High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit CUP,A/D Converter,RAM,ROM,General Serial Interface,Multifuction Timer/Event Counter(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位CPU,A/D,轉(zhuǎn)換器,ROM,RAM,通用串行接口,多功能定時器/事件計數(shù)器))
TMP90P800 A System Evaluation LSI With One-Time PROM(8192 x 8-Bit),RAM(256 x 8-Bit)(系統(tǒng)評估大規(guī)模集成電路(帶一次可編程ROM(8192 x 8位),RAM(256 x 8位))
TMP90P802 A System Evaluation LSI With 8-Bit CPU,One-Time PROM(8192 x 8-Bit),RAM(256 x 8-Bit)(系統(tǒng)評估大規(guī)模集成電路(集成8位CPU,一次可編程ROM(8192 x 8位),RAM(256 x 8位))
TMP90PH02 A System Evaluation LSI With 8-Bit CPU,One-Time PROM(16384 x 8-Bit),RAM(512 x 8-Bit)(系統(tǒng)評估大規(guī)模集成電路(集成8位CPU,一次可編程ROM(16384 x 8位),RAM(512 x 8位))
TMP90PH44 A System Evaluation LSI With 8-Bit CPU,One-Time PROM(16384 x 8-Bit),RAM(512 x 8-Bit)(系統(tǒng)評估大規(guī)模集成電路(集成8位CPU,一次可編程ROM(16384 x 8位),RAM(512 x 8位))
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