參數(shù)資料
型號: AT90S2313-10PC
廠商: Atmel
文件頁數(shù): 20/92頁
文件大小: 0K
描述: IC MCU 2K FLSH 10MHZ UART 20DIP
標準包裝: 18
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 10MHz
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): 15
程序存儲器容量: 2KB(1K x 16)
程序存儲器類型: 閃存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 20-DIP(0.300",7.62mm)
包裝: 管件
27
AT90S2313
0839I–AVR–06/02
Sleep Modes
To enter the sleep modes, the SE bit in MCUCR must be set (one) and a SLEEP instruc-
tion must be executed. If an enabled interrupt occurs while the MCU is in a sleep mode,
the MCU awakes, executes the interrupt routine, and resumes execution from the
instruction following SLEEP. The contents of the Register File, SRAM and I/O memory
are unaltered. If a Reset occurs during sleep mode, the MCU wakes up and executes
from the Reset Vector.
Idle Mode
When the SM bit is cleared (zero), the SLEEP instruction forces the MCU into the Idle
mode, stopping the CPU but allowing Timer/Counters, Watchdog and the interrupt sys-
tem to continue operating. This enables the MCU to wake up from external triggered
interrupts as well as internal ones like Timer Overflow interrupt and Watchdog Reset. If
wake-up from the Analog Comparator Interrupt is not required, the Analog Comparator
can be powered down by setting the ACD-bit in the Analog Comparator Control and Sta-
tus Register (ACSR). This will reduce power consumption in Idle mode. When the MCU
wakes up from Idle mode, the CPU starts program execution immediately.
Power-down Mode
When the SM bit is set (one), the SLEEP instruction forces the MCU into the Power-
down mode. In this mode, the external Oscillator is stopped while the external interrupts
and the Watchdog (if enabled) continue operating. Only an External Reset, a Watchdog
Reset (if enabled), an external level interrupt on INT0 or INT1 can wake up the MCU.
Note that when a level-triggered interrupt is used for wake-up from Power-down, the low
level must be held for a time longer than the reset delay Time-out period t
TOUT.Other-
wise, the device will not wake up.
Timer/Counters
The AT90S2313 provides two general purpose Timer/Counters – one 8-bit T/C and one
16-bit T/C. The Timer/Counters have individual prescaling selection from the same 10-
bit prescaling timer. Both Timer/Counters can either be used as a timer with an internal
clock time base or as a counter with an external pin connection that triggers the
counting.
Timer/Counter Prescaler
Figure 28 shows the general Timer/Counter prescaler.
Figure 28. Timer/Counter Prescaler
TCK1
TCK0
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