參數(shù)資料
型號(hào): AT89C5131A-RDTIL
廠商: Atmel
文件頁(yè)數(shù): 95/185頁(yè)
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 32K USB 64VQFP
標(biāo)準(zhǔn)包裝: 160
系列: AT89C513x
核心處理器: C52X2
芯體尺寸: 8-位
速度: 48MHz
連通性: I²C,SPI,UART/USART,USB
外圍設(shè)備: LED,POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲(chǔ)器容量: 32KB(32K x 8)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-LQFP
包裝: 托盤
配用: AT89STK-10-ND - KIT EVAL APPL MASS STORAGE
AT89STK-05-ND - KIT STARTER FOR AT89C5131
其它名稱: AT89C5131-RDTIL-ND
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dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04
DS70318F-page 184
2008-2012 Microchip Technology Inc.
The Timer2/3 module can operate in one of the
following modes:
Timer mode
Gated Timer mode
Synchronous Counter mode
In Timer and Gated Timer modes, the input clock is
derived from the internal instruction cycle clock (FCY).
In Synchronous Counter mode, the input clock is
derived from the external clock input at the TxCK pin.
The timer modes are determined by the following bits:
TCS (TxCON<1>): Timer Clock Source Control bit
TGATE (TxCON<6>): Timer Gate Control bit
Timer control bit settings for different operating modes
are given in the Table 12-1.
TABLE 12-1:
TIMER MODE SETTINGS
12.1
16-bit Operation
To configure any of the timers for individual 16-bit
operation:
1.
Clear the T32 bit corresponding to that timer.
2.
Select the timer prescaler ratio using the
TCKPS<1:0> bits.
3.
Set the Clock and Gating modes using the TCS
and TGATE bits.
4.
Load the timer period value into the PRx
register.
5.
If interrupts are required, set the interrupt enable
bit, TxIE. Use the priority bits, TxIP<2:0>, to set
the interrupt priority.
6.
Set the TON bit.
12.2
32-bit Operation
A 32-bit timer module can be formed by combining a
Type B and a Type C 16-bit timer module. For 32-bit
timer operation, the T32 control bit in the Type B Timer
Control (TxCON<3>) register must be set. The Type C
timer holds the most significant word (msw) and the
Type B timer holds the least significant word (lsw)
for 32-bit operation.
When configured for 32-bit operation, only the Type B
Timer Control (TxCON) register bits are required for
setup and control while the Type C Timer Control
register bits are ignored (except the TSIDL bit).
For interrupt control, the combined 32-bit timer uses
the interrupt enable, interrupt flag and interrupt priority
control bits of the Type C timer. The interrupt control
and status bits for the Type B timer are ignored
during 32-bit timer operation.
The Timer2 and Timer 3 that can be combined to form a
32-bit timer are listed in Table 12-2.
TABLE 12-2:
32-BIT TIMER
A block diagram representation of the 32-bit timer
module is shown in Figure 12-3. The 32-timer module
can operate in one of the following modes:
Timer mode
Gated Timer mode
Synchronous Counter mode
To configure the features of Timer2/3 for 32-bit
operation:
1.
Set the T32 control bit.
2.
Select the prescaler ratio for Timer2 using the
TCKPS<1:0> bits.
3.
Set the Clock and Gating modes using the
corresponding TCS and TGATE bits.
4.
Load the timer period value. PR3 contains the
most significant word of the value, while PR2
contains the least significant word.
5.
If interrupts are required, set the interrupt enable
bit, T3IE. Use the priority bits, T3IP<2:0>, to set
the interrupt priority. While Timer2 controls the
timer, the interrupt appears as a Timer3
interrupt.
6.
Set the corresponding TON bit.
The timer value at any point is stored in the register
pair, TMR3:TMR2, which always contains the most
significant word of the count, while TMR2 contains the
least significant word.
Mode
TCS
TGATE
Timer
00
Gated Timer
01
Synchronous Counter
1x
Type B Timer (lsw)
Type C Timer (msw)
Timer2
Timer3
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AT89C5131A-RDTUL 功能描述:8位微控制器 -MCU 32K Flash 3V USB RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度: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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AT89C5131A-RDTUM 制造商:Atmel Corporation 功能描述:IC 8BIT MCU C51/C251 48MHZ 64-VQFP
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