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參數(shù)資料
| 型號： | AT43USB325E-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Multimedia USB Keyboard Controller with Embedded Hub |
| 中文描述： | 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封裝： | 1.40 MM HEIGHT, PLASTIC, MS-026-ACB, LQFP-64 |
| 文件頁數(shù)： | 47/109頁 |
| 文件大?。?/td> | 643K |
| 代理商： | AT43USB325E-AC |
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47
3355C–USB–4/05
AT43USB325
6.4.1
Timer/Counter1 Control Register A – TCCR1A
Bits 7, 6
–
COM1A1, COM1A0: Compare Output Mode1A, Bits 1 and 0
The COM1A1 and COM1A0 control bits determine any output pin action following a compare
match in Timer/Counter1. Any output pin actions affect pin OC1A (Output CompareA) pin 1. This
is an alternative function to an I/O port and the corresponding direction control bit must be set
(one) to control the output pin. The control configuration is shown in
Table 6-2
.
Bits 5, 4
–
COM1B1, COM1B0: Compare Output Mode1B, Bits 1 and 0
The COM1B1 and COM1B0 control bits determine any output pin action following a compare
match in Timer/Counter1. Any output pin actions affect pin OC1B (Output CompareB). The fol-
lowing control configuration is given:
Note:
1. X = A or B
2. In PWM mode, these bits have a different function. Refer to
Table 6-6
for a detailed
description.
Bits 3..2
–
Res: Reserved Bits
These bits are reserved bits in the AT43USB325 and always read zero.
Bits 1..0
–
PWM11, PWM10: Pulse Width Modulator Select Bits 1 and 0
These bits select PWM operation of Timer/Counter1 as specified in
Table 6-3
.
Bit
7
6
5
4
3
2
1
0
$2F ($4F)
COM1A1
COM1A0
COM1B1
COM1B0
–
–
PWM11
PWM10
TCCR1A
Read/Write
R/W
R/W
R/W
R/W
R
R
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Table 6-2.
Compare 1 Mode Select
(2)
COM1X1
COM1X0
Description
0
0
Timer/Counter1 disconnected from output pin OC1X.
(1)
0
1
Toggle the OC1X output line.
(1)
1
0
Clear the OC1X output line (to zero).
(1)
1
1
Set the OC1X output line (to one).
(1)
Table 6-3.
PWM Mode Select
PWM11
PWM10
Description
0
0
PWM operation of Timer/Counter1 is disabled.
0
1
Timer/Counter1 is an 8-bit PWM.
1
0
Timer/Counter1 is a 9-bit PWM.
1
1
Timer/Counter1 is a 10-bit PWM.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43USB325E-AU | 功能描述:USB 接口集成電路 USB KEYBOARD CONTROL w/HUB - IND TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43USB326 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
| AT43USB326_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB326-AC | 功能描述:USB 接口集成電路 USB KEYBOARD F/LOGI- TECH - COM TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43USB326-AU | 功能描述:USB 接口集成電路 USB KEYBOARD FOR LOGITECH - IND TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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