參數(shù)資料
型號: AT90S8515-8JC
廠商: Atmel
文件頁數(shù): 41/112頁
文件大?。?/td> 0K
描述: IC MCU 8K FLSH 8MHZ 44PLCC
標(biāo)準(zhǔn)包裝: 27
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(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 8KB(4K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
34
AT90S8515
0841G–09/01
The Stop condition provides a Timer Enable/Disable function. The CK down divided
modes are scaled directly from the CK oscillator clock. If the external pin modes are
used for Timer/Counter0, transitions on PB0/(T0) will clock the counter even if the pin is
configured 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 30 shows the block diagram for Timer/Counter1.
Figure 30. 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 Registers (TCCR1A and TCCR1B). The different status flags
(overflow, compare match and capture event) are found in the Timer/Counter Interrupt
Flag Register (TIFR). Control signals are found in the Timer/Counter1 Control Registers
Bit
765
432
10
$32 ($52)
MSB
LSB
TCNT0
Read/Write
R/W
Initial Value
0
T1
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