参数资料
型号: ATTINY26L-8PU
厂商: Atmel
文件页数: 138/169页
文件大小: 0K
描述: IC MCU AVR 2K 5V 8MHZ 20-DIP
产品培训模块: MCU Product Line Introduction
tinyAVR Introduction
标准包装: 18
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 8MHz
连通性: USI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 16
程序存储器容量: 2KB(1K x 16)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 11x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-DIP(0.300",7.62mm)
包装: 管件
产品目录页面: 612 (CN2011-ZH PDF)
配用: ATSTK600-RC08-ND - STK600 ROUTING CARD AVR
ATSTK600-ND - DEV KIT FOR AVR/AVR32
ATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM
ATSTK505-ND - ADAPTER KIT FOR 14PIN AVR MCU
其它名称: ATTINY26L-8PJ
ATTINY26L-8PJ-ND
70
1477K–AVR–08/10
ATtiny26(L)
Timer/Counter1
Control Register A –
TCCR1A
Bits 7, 6 – COM1A1, COM1A0: Comparator A Output Mode, Bits 1 and 0
The COM1A1 and COM1A0 control bits determine any output pin action following a Compare
Match with Compare Register A in Timer/Counter1. Output pin actions affect pin PB1 (OC1A).
Since this is an alternative function to an I/O port, the corresponding direction control bit must be
set (one) in order to control an output pin. Note that OC1A is not connected in normal mode.
In PWM mode, these bits have different functions. Refer to Table 35 on page 75 for a detailed
description.
Bits 5, 4 – COM1B1, COM1B0: Comparator B Output Mode, Bits 1 and 0
The COM1B1 and COM1B0 control bits determine any output pin action following a Compare
Match with Compare Register B in Timer/Counter1. Output pin actions affect pin PB3 (OC1B).
Since this is an alternative function to an I/O port, the corresponding direction control bit must be
set (one) in order to control an output pin. Note that OC1B is not connected in normal mode.
In PWM mode, these bits have different functions. Refer to Table 35 on page 75 for a detailed
description.
Bit 3 – FOC1A: Force Output Compare Match 1A
Writing a logical one to this bit forces a change in the Compare Match output pin PB1 (OC1A)
according to the values already set in COM1A1 and COM1A0. If COM1A1 and COM1A0 written
in the same cycle as FOC1A, the new settings will be used. The Force Output Compare bit can
be used to change the output pin value regardless of the timer value. The automatic action pro-
grammed in COM1A1 and COM1A0 takes place as if a compare match had occurred, but no
interrupt is generated. The FOC1A bit always reads as zero. FOC1A is not in use if PWM1A bit
is set.
Bit 2 – FOC1B: Force Output Compare Match 1B
Writing a logical one to this bit forces a change in the Compare Match output pin PB3 (OC1B)
according to the values already set in COM1B1 and COM1B0. If COM1B1 and COM1B0 written
in the same cycle as FOC1B, the new settings will be used. The Force Output Compare bit can
Bit
7
6
5
4
3
2
1
0
$30 ($50)
COM1A1
COM1A0
COM1B1
COM1B0
FOC1A
FOC1B
PWM1A
PWM1B
TCCR1A
Read/Write
R/W
Initial Value
0
Table 32. Comparator A Mode Select
COM1A1
COM1A0
Description
0
Timer/Counter Comparator A disconnected from output pin OC1A.
0
1
Toggle the OC1A output line.
1
0
Clear the OC1A output line.
1
Set the OC1A output line.
Table 33. Comparator B Mode Select
COM1B1
COM1B0
Description
0
Timer/Counter Comparator B disconnected from output pin OC1B.
0
1
Toggle the OC1B output line.
1
0
Clear the OC1B output line.
1
Set the OC1B output line.
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