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| 型號(hào)： | ATMEGA103-6AI |
| 廠商： | Atmel |
| 文件頁(yè)數(shù)： | 80/141頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 128K 6MHZ A/D IT 64TQFP |
| 產(chǎn)品培訓(xùn)模塊： | megaAVR Introduction |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | AVR® ATmega |
| 核心處理器： | AVR |
| 芯體尺寸： | 8-位 |
| 速度： | 6MHz |
| 連通性： | SPI，UART/USART |
| 外圍設(shè)備： | POR，PWM，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲(chǔ)器容量： | 128KB（64K x 16） |
| 程序存儲(chǔ)器類(lèi)型： | 閃存 |
| EEPROM 大小： | 4K x 8 |
| RAM 容量： | 4K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 8x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 64-TQFP |
| 包裝： | 托盤(pán) |
| 配用： | ATSTK501-ND - ADAPTER KIT FOR 64PIN AVR MCU |
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43
ATmega103(L)
0945I–AVR–02/07
These 8-bit registers contain the value of the Timer/Counters.
Both Timer/Counters are realized as up or up/down (in PWM mode) counters with read
and write access. If the Timer/Counter is written to and a clock source is selected, it con-
tinues counting in the timer clock cycle after it is preset with the written value.
Timer/Counter0 Output
Compare Register – OCR0
Timer/Counter2 Output
Compare Register – OCR2
The Output Compare Registers are 8-bit read/write registers.
The Timer/Counter Output Compare Registers contain the data to be continuously com-
pared with the Timer/Counter. Actions on compare matches are specified in TCCR0 and
TCCR2. A compare match does only occur if the Timer/Counter counts to the OCR
value. A software write that sets the Timer/Counter and Output Compare Register to the
same value does not generate a compare match.
A compare match will set the Compare Interrupt Flag in the CPU clock cycle following
the compare event.
Timer/Counters 0 and 2 in
PWM Mode
When the PWM mode is selected, the Timer/Counter and the Output Compare Register
(OCR0 or OCR2) form an 8-bit, free-running, glitch-free and phase correct PWM with
outputs on the PB4(OC0/PWM0) or PB7(OC2/PWM2) pin. The Timer/Counter acts as
an up/down counter, counting up from $00 to $FF, where it turns and counts down again
to zero before the cycle is repeated. When the counter value matches the contents of
the Output Compare Register, the PB4(OC0/PWM0) or PB7(OC2/PWM2) pin is set or
cleared according to the settings of the COM01/COM00 or COM21/COM20 bits in the
Timer/Counter Control Registers TCCR0 and TCCR2. Refer to Table 13 for details.
Note:
n = 0 or 2
Note that in PWM mode, the Output Compare Register is transferred to a temporary
location when written. The value is latched when the Timer/Counter reaches $FF. This
prevents the occurrence of odd-length PWM pulses (glitches) in the event of an unsyn-
chronized OCR0 or OCR2 write. See Figure 32 for an example.
Bit
7
6
543
210
$31 ($51)
MSB
LSB
OCR0
Read/Write
R/WR/W
Initial Value
0
Bit
7
6
543
210
$23 ($43)
MSB
LSB
OCR2
Read/Write
R/WR/W
Initial Value
0
Table 13. Compare Mode Select in PWM Mode
COMn1
COMn0
Effect on Compare/PWM Pin
0
Not connected
0
1
Not connected
10
Cleared on compare match, up-counting. Set on compare match, down-
counting (non-inverted PWM).
11
Cleared on compare match, down-counting. Set on compare match, up-
counting (inverted PWM).
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| ATMEGA103L | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit Microcontroller with 128K Bytes In-System Programmable Flash |
| ATMEGA103L-4AC | 功能描述:8位微控制器 -MCU TQFP-64 128K FLASH 3 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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| ATMEGA128 | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit Microcontroller with 128K Bytes In-System Programmable Flash |
| ATMEGA128(L) | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:ATmega128(L) Preliminary Summary [Updated 9/03. 23 Pages] |
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