参数资料
型号: ATTINY15L-1SI
厂商: Atmel
文件页数: 18/85页
文件大小: 0K
描述: IC AVR MCU 1K FLASH 2.7V SO8
标准包装: 95
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 1.6MHz
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 6
程序存储器容量: 1KB(512 x 16)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.209",5.30mm 宽)
包装: 管件
25
ATtiny15L
1187H–AVR–09/07
Timer/Counters
The ATtiny15L provides two general purpose 8-bit Timer/Counters. The Timer/Counters
ha ve sep a r a t e p r e s ca ling se lect ion fr om sepa ra t e 10 -b it pr escale rs. The
Timer/Counter0 uses internal clock (CK) as the clock time base. The Timer/Counter1
may use either the internal clock (CK) or the fast peripheral clock (PCK) as the clock
time base.
The Timer/Counter0
Prescaler
Figure 18 shows the Timer/Counter prescaler.
Figure 18. Timer/Counter0 Prescaler
The four prescaled selections are: CK/8, CK/64, CK/256, and CK/1024, where CK is the
Oscillator clock. CK, external source and stop, can also be selected as clock sources.
Setting the PSR10 bit in SFIOR resets the prescaler. This allows the user to operate
with a predictable prescaler.
The Timer/Counter1
Prescaler
Figure 19 shows the Timer/Counter1 prescaler. For Timer/Counter1 the clock selections
are: PCK, PCK/2, PCK/4, PCK/8, CK (=PCK/16), CK/2, CK/4, CK/8,CK/16, CK/32,
CK/64, CK/128, CK/256, CK/512, CK/1024, and stop. The clock options are described in
Table 12 on page 31 and the Timer/Counter1 Control Register (TCCR1). Setting the
PSR1 bit in the SFIOR Register resets the 10-bit prescaler. This allows the user to oper-
ate with a predictable prescaler.
Figure 19. Timer/Counter1 Prescaler
10-BIT T/C PRESCALER
0
TIMER/COUNTER0 CLOCK SOURCE
CK
T0
PSR0
CLEAR
CS00
TCK0
CS01
CS02
CK/8
CK/256
CK/1024
CK/64
10-BIT T/C PRESCALER
TIMER/COUNTER1 CLOCK SOURCE
CK
PSR1
CS10
CS11
CS12
CK/8
CK/256
CK/1024
CK/64
PCK
(25.6 MHz)
(1.6 MHz)
0
CS13
CLEAR
3-BIT T/C PRESCALER
PCK/2
PCK/4
PCK/8
CK
(=PCK/16)
CK/2
CK/4
CK/16
CK/32
CK/128
CK/512
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