- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98006 > M37548G3FP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 PDF資料下載
參數(shù)資料
| 型號(hào)： | M37548G3FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20 |
| 文件頁數(shù)： | 22/84頁 |
| 文件大?。?/td> | 1427K |
| 代理商： | M37548G3FP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁當(dāng)前第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁
Rev.2.02
Mar 31, 2009
Page 29 of 81
REJ03B0210-0202
7548 Group
Timer A (TA)
Timer A is a 16-bit timer and counts the signal selected by the
timer A count source selection bit.
The count source of Timer A can be selected from among
φSOURCE/2, /16, /32, /64, /128, /256, low-speed on-ship
oscillator clock, and XCIN input clock.
Timer A counts the selected count source and sets the timer A
interrupt request bit to “1”.
When writing to timer A, the setting value of the timer A write
control bit can be used to select a write to both the timer A latch
and timer or a write to only the timer A latch.
Reading from timer A reads the timer A count value.
Be sure to write to and read from the low-order and the higher
order of timer A in the following order:
Read
Read the high-order of Timer A (TAH) first, and the low-
order of Timer A (TAL) next. Always read both of the
registers.
Write
Write to the low-order of Timer A (TAL) first and the
high-order of Timer A next. Always read both of the
registers.
Counting starts from “FFFF16” after reset.
The division ratio of timer A is 1/(n+1), where n is the timer A
setting value. Timer A stops when the timer A count stop bit is
set to “1”.
Timer A can be used as the timing timer for input capture and
output compare functions.
Notes
(1) Timer Value Setting
When the timer A write control bit is set to “write to only latch”,
written data is written to only to the latch even when the timer is
stopped. To set the initial setting value when the timer is stopped,
select “Write to timer and latch simultaneously” beforehand.
(2) Reading from and Writing to Timer A
If the timer A count source clock and
φSOURCE are different
clocks, timer A cannot be read or written during its counting.
Select the same clock or set timer A to stop counting to enable
read and write operations.
Timer A cannot be read/written in the following conditions:
Timer A count source: XCIN input clock
φSOURCE: Clock other than XCIN input clock
or
Timer A count source: Low-speed on-chip oscillator output
φSOURCE: Clock other than low-speed on-chip oscillator
(3) Count Source of Timer A
The XCIN input clock can be selected as the count source of timer
A only if the 32 kHz quartz crystal oscillator is selected by the
oscillation method selection bit in FSROM1.
Fig 29. Block diagram of timer A
Data bus
Low-speed on-chip
oscillator output
φSOURCE/256
φSOURCE/128
φSOURCE/64
φSOURCE/32
φSOURCE/16
φSOURCE/2
Timer A (low-order) latch (8)
XCIN input clock
(32 kHz quart
crystal oscillator)
Timer A (high-order) latch (8)
Timer A (low-order) (8)
Timer A (high-order) (8)
Timer A write
control bit
Timer A interrupt
request
Compare
Capture
Timer A count
stop bit
Timer A
count source
selection bits
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37548G1FP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| M37548G2-XXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| M37640E8-XXXFP | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP80 |
| M37702S1ABFP | 16-BIT, 16 MHz, MICROCONTROLLER, PQFP80 |
| M37703E2BSP | 16-BIT, OTPROM, 25 MHz, MICROCONTROLLER, PDIP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37548G3FP#U0 | 功能描述:MCU 6K ROM 256K 20-SSOP 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:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:96KB（96K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 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:48-LQFP 包裝:托盤 其它名稱:568-9587 |
| M37548G3-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G1FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G1-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G2FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。