參數(shù)資料
型號: AT90S4433-8AC
廠商: Atmel
文件頁數(shù): 56/126頁
文件大?。?/td> 0K
描述: IC MCU 4K FLSH 8MHZ A/D 32TQFP
標準包裝: 250
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: SPI,UART/USART
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 20
程序存儲器容量: 4KB(2K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 6x10b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 32-TQFP
包裝: 托盤
35
AT90S/LS4433
1042H–AVR–04/03
The Stop condition provides a Timer Enable/Disable function. The prescaled CK modes
are scaled directly from the CK Oscillator clock. If the external pin modes are used for
Timer/Counter0, transitions on PD4/(T0) will clock the counter even if the pin is config-
ured as an output. This feature can give the user software control of the counting.
Timer Counter0 – TCNT0
The Timer/Counter0 is realized as an up-counter with read and write access. If the
Timer/Counter0 is written and a clock source is present, the Timer/Counter0 continues
counting in the clock cycle following the write operation.
16-bit Timer/Counter1 Figure 32 shows the block diagram for Timer/Counter1.
Figure 32. Timer/Counter1 Block Diagram
The 16-bit Timer/Counter1 can select clock source from CK, prescaled CK or an exter-
nal pin. In addition, it can be stopped as described in the specification for the
Timer/Counter1 Control Register (TCCR1A). The different Status Flags (Overflow, Com-
pare Match and Capture Event) and control signals are found in the Timer/Counter
Bit
7654
321
0
$32 ($52)
MSB
LSB
TCNT0
Read/Write
R/W
Initial Value
0000
000
0
T1
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