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    參數(shù)資料
    型號: C8051F001
    廠商: Silicon Laboratories Inc
    文件頁數(shù): 53/171頁
    文件大?。?/td> 0K
    描述: IC 8051 MCU 32K FLASH 48TQFP
    標準包裝: 250
    系列: C8051F00x
    核心處理器: 8051
    芯體尺寸: 8-位
    速度: 20MHz
    連通性: SMBus(2 線/I²C),SPI,UART/USART
    外圍設備: 欠壓檢測/復位,POR,PWM,溫度傳感器,WDT
    輸入/輸出數(shù): 16
    程序存儲器容量: 32KB(32K x 8)
    程序存儲器類型: 閃存
    RAM 容量: 256 x 8
    電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
    數(shù)據(jù)轉換器: A/D 8x12b,D/A 2x12b
    振蕩器型: 內部
    工作溫度: -40°C ~ 85°C
    封裝/外殼: 48-TQFP
    包裝: 托盤
    C8051F000/1/2/5/6/7
    C8051F010/1/2/5/6/7
    19.2.
    Timer 2
    Timer 2 is a 16-bit counter/timer formed by the two 8-bit SFRs: TL2 (low byte) and TH2 (high byte). As with
    Timers 0 and 1, Timer 2 can use either the system clock or transitions on an external input pin as its clock source.
    The Counter/Timer Select bit C/T2 bit (T2CON.1) selects the clock source for Timer 2. Clearing C/T2 selects the
    system clock as the input for the timer (divided by either one or twelve as specified by the Timer Clock Select bit
    T2M in CKCON). When C/T2 is set to 1, high-to-low transitions at the T2 input pin increment the counter/timer
    register. (Refer to Section 14 for information on selecting and configuring external I/O pins.) Timer 2 can also be
    used to start an ADC Data Conversion.
    Timer 2 offers capabilities not found in Timer 0 and Timer 1.
    It operates in one of three modes: 16-bit
    Counter/Timer with Capture, 16-bit Counter/Timer with Auto-Reload or Baud Rate Generator Mode. Timer 2’s
    operating mode is selected by setting configuration bits in the Timer 2 Control (T2CON) register. Below is a
    summary of the Timer 2 operating modes and the T2CON bits used to configure the counter/timer. Detailed
    descriptions of each mode follow.
    RCLK
    TCLK
    CP/RL2
    TR2
    Mode
    0
    1
    16-bit Counter/Timer with Capture
    0
    1
    16-bit Counter/Timer with Auto-Reload
    0
    1
    X
    1
    Baud Rate Generator for TX
    1
    0
    X
    1
    Baud Rate Generator for RX
    1
    X
    1
    Baud Rate Generator for TX and RX
    X
    0
    Off
    Rev. 1.7
    146
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    參數(shù)描述
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