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參數(shù)資料
| 型號(hào)： | M37544G2ASP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| 封裝： | 28 X 8.90 MM, 1.78 MM PITCH, PLASTIC, SDIP-32 |
| 文件頁(yè)數(shù)： | 68/77頁(yè) |
| 文件大?。?/td> | 641K |
| 代理商： | M37544G2ASP |
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7544 Group (QzROM version)
REJ03B0108-0103
Rev.1.03
Mar 31, 2009
page 68 of 72
Notes on Timers
1. When n (0 to 255) is written to a timer latch, the frequency divi-
sion ratio is 1/(n+1).
2. When a count source of timer X is switched, stop a count of the
timer.
Notes on Timer 1
1. Timer 1 count source
The “on-chip oscillator output” of timer 1 count source selection
bits (bits 1 and 0 of timer count source set register 2 (address
002F16)) can be selected while the on-chip oscillator oscillation
control bit (bit 3 of CPU mode register (address 003B16)) is “0”
(on-chip oscillator oscillation enabled).
Notes on Timer A
1. CNTR1 interrupt active edge selection
CNTR1 interrupt active edge depends on the CNTR1 active edge
switch bit (bit 6 of timer A mode register (address 001D16)).
When this bit is “0”, the CNTR1 interrupt request bit goes to “1” at
the falling edge of the CNTR1 pin input signal. When this bit is “1”,
the CNTR1 interrupt request bit goes to “1” at the rising edge of
the CNTR1 pin input signal.
However, in the pulse width HL continuously measurement mode,
CNTR1 interrupt request is generated at both rising and falling
edges of CNTR1 pin input signal regardless of the setting of
CNTR1 active edge switch bit.
2. Period measurement mode, event counter mode and pulse
width HL continuously measurement mode
Set the direction register of port P00, which is also used as CNTR1
pin, to input.
Set the key-on wakeup function of P00, which is also used as
CNTR1 pin, to be disabled by setting the P00 key-on wakeup se-
lection bit (bit 7 of interrupt edge selection register (address
003A16)) to “1”.
3. Timer A count source
The “on-chip oscillator output” of timer A count source selection
bits (bits 3 and 2 of timer count source set register 2 (address
002F16)) can be selected while the on-chip oscillator oscillation
control bit (bit 3 of CPU mode register (address 003B16)) is “0”
(on-chip oscillator oscillation enabled).
Notes on Timer X
1. CNTR0 interrupt active edge selection
CNTR0 interrupt active edge depends on the CNTR0 active edge
switch bit (bit 2 of timer X mode register (address 002B16)).
When this bit is “0”, the CNTR0 interrupt request bit goes to “1” at
the falling edge of CNTR0 pin input signal. When this bit is “1”, the
CNTR0 interrupt request bit goes to “1” at the rising edge of
CNTR0 pin input signal.
2. Timer X count source selection
The f(XIN) (frequency not divided) can be selected by the timer X
count source selection bits (bits 1 and 0 of timer count source set
register 1 (address 002E16)) only when the ceramic oscillation or
the on-chip oscillator is selected.
Do not select it for the timer X count source at the RC oscillation.
3. Pulse output mode
Set the direction register of port P14, which is also used as CNTR0
pin, to output.
When the TXOUT pin is used, set the direction register of port P03,
which is also used as TXOUT pin, to output.
4. Pulse width measurement mode
Set the direction register of port P14, which is also used as CNTR0
pin, to input.
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| M37544G2ASP#U0 | 功能描述:MCU 2/5V 8K 32-SDIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 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:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| M37544G2GP | 功能描述:IC 740 MCU OTP 8K 32LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 產(chǎn)品培訓(xùn)模塊:MCU Product Line Introduction XMEGA Introduction AVR XMEGA USB Connectivity 標(biāo)準(zhǔn)包裝:90 系列:AVR® XMEGA 核心處理器:AVR 芯體尺寸:8/16-位 速度:32MHz 連通性:I²C，IrDA，SPI，UART/USART 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，DMA，POR，PWM，WDT 輸入/輸出數(shù):50 程序存儲(chǔ)器容量:192KB（96K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:16K x 8 電壓 - 電源 (Vcc/Vdd):1.6 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 16x12b; D/A 2x12b 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 配用:ATSTK600-RC14-ND - STK600 SOCKET/ADAPTER 64TQFPATSTK600-TQFP64-ND - STK600 SOCKET/ADAPTER 64-TQFPATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMRATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM |
| M37544G2HP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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| M37544M2-XXXGP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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