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參數(shù)資料
| 型號(hào)： | W77LE58P-25 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8 BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁(yè)數(shù)： | 56/81頁(yè) |
| 文件大?。?/td> | 657K |
| 代理商： | W77LE58P-25 |
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Preliminary W77LE58
- 56 -
Auto-reload Mode, Counting Up
The auto-reload mode as an up counter is enabled by clearing the CP RL
register. RCLK and TCLK bits must be cleared and clearing the DCEN bit in T2MOD register. In this
mode, Timer/Counter 2 is a 16 bit up counter. When the counter rolls over from FFFFh, a reload is
generated that causes the contents of the RCAP2L and RCAP2H registers to be reloaded into the TL2
and TH2 registers. The reload action also sets the TF2 bit. If the EXEN2 bit is set, then a negative
transition of T2EX pin will also cause a reload. This action also sets the EXF2 bit in T2CON.
/
2 bit in the T2CON
1/4
1/12
T2M = CKCON.5
1
C/T2 = T2CON.1
0
T2CON.7
T2 = P1.0
T2CON.6
TR2 =
T2CON.2
T2EX = P1.1
EXEN2 = T2CON.3
EXF2
Timer 2
Interrupt
TF2
TH2
TL2
RCAP2H
RCAP2L
0
1
Clock Source
Mode input
div. by 4 osc/1
div. by 64 osc/16
div. by 1024 osc/256
DCEN = 0
Figure 15. 16-Bit Auto-reload Mode, Counting Up
Auto-reload Mode, Counting Up/Down
Timer/Counter 2 will be in auto-reload mode as an up/down counter if CP RL
cleared. RCLK and TCLK bits must be cleared and the DCEN bit in T2MOD is set. In this mode,
Timer/Counter 2 is an up/down counter whose direction is controlled by the T2EX pin. A 1 on this pin
cause the counter to count up. An overflow while counting up will cause the counter to be reloaded
with the contents of the capture registers. The next down count following the case where the contents
of Timer/Counter equal the capture registers will load an FFFFh into Timer/Counter 2. In either event
a reload will set the TF2 bit. A reload will also toggle the EXF2 bit. However, the EXF2 bit can not
generate an interrupt while in this mode.
2 bit in T2CON is
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W77M032A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77M032A25DL | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77M032A25FL | 功能描述:IC MCU 8-BIT 1K SRAM 44-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W77 標(biāo)準(zhǔn)包裝:60 系列:PSOC® 3 CY8C38xx 核心處理器:8051 芯體尺寸:8-位 速度:67MHz 連通性:EBI/EMI，I²C，LIN，SPI，UART/USART 外圍設(shè)備:電容感應(yīng)，DMA，LCD，POR，PWM，WDT 輸入/輸出數(shù):25 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:2K x 8 RAM 容量:8K x 8 電壓 - 電源 (Vcc/Vdd):1.71 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 2x20b，D/A 4x8b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-VFQFN 裸露焊盤 包裝:托盤 |
| W77M032A25PL | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W780 | 制造商:LUMINIS 制造商全稱:LUMINIS 功能描述:Ceiling mount |
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