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參數資料
| 型號： | W77E516 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數： | 28/85頁 |
| 文件大小： | 596K |
| 代理商： | W77E516 |
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Preliminary W77E516
- 28 -
Timed Access
Bit:
7
6
5
4
3
2
1
0
TA.7
TA.6
TA.5
TA.4
TA.3
TA.2
TA.1
TfA.0
Mnemonic: TA
Address: C7h
TA: The Timed Access register controls the access to protected bits. To access protected bits, the
user must first write AAH to the TA. This must be immediately followed by a write of 55H to TA.
Now a window is opened in the protected bits for three machine cycles, during which the user
can write to these bits.
Timer 2 Control
Bit:
7
6
5
4
3
2
1
0
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C T
/
2
CP RL
/
2
Mnemonic: T2CON
Address: C8h
TF2: Timer 2 overflow flag: This bit is set when Timer 2 overflows. It is also set when the count is
equal to the capture register in down count mode. It can be set only if RCLK and TCLK are
both 0. It is cleared only by software. Software can also set or clear this bit.
EXF2: Timer 2 External Flag: A negative transition on the T2EX pin (P1.1) or timer 2 overflow will
cause this flag to set based on the CP RL
/
transition, this flag must be cleared by software. Setting this bit in software or detection of a
negative transition on T2EX pin will force a timer interrupt if enabled.
2, EXEN2 and DCEN bits. If set by a negative
RCLK: Receive Clock Flag: This bit determines the serial port 0 time-base when receiving data in
serial modes 1 or 3. If it is 0, then timer 1 overflow is used for baud rate generation,
otherwise timer 2 overflow is used. Setting this bit forces timer 2 in baud rate generator
mode.
TCLK: Transmit Clock Flag: This bit determines the serial port 0 time-base when transmitting data
in modes 1 and 3. If it is set to 0, the timer 1 overflow is used to generate the baud rate
clock otherwise timer 2 overflow is used. Setting this bit forces timer 2 in baud rate
generator mode.
EXEN2: Timer 2 External Enable. This bit enables the capture/reload function on the T2EX pin if
Timer 2 is not generating baud clocks for the serial port. If this bit is 0, then the T2EX pin
will be ignored, otherwise a negative transition detected on the T2EX pin will result in
capture or reload.
TR2: Timer 2 Run Control. This bit enables/disables the operation of timer 2. Clearing this bit will
halt the timer 2 and preserve the current count in TH2, TL2.
C T
/
2 : Counter/Timer Select. This bit determines whether timer 2 will function as a timer or a
counter. Independent of this bit, the timer will run at 2 clocks per tick when used in baud
rate generator mode. If it is set to 0, then timer 2 operates as a timer at a speed
depending on T2M bit (CKCON.5), otherwise it will count negative edges on T2 pin.
相關PDF資料 |
PDF描述 |
|---|---|
| W77E516-25 | 8-BIT MICROCONTROLLER |
| W77E516-40 | 8-BIT MICROCONTROLLER |
| W77E516F-25 | 8-BIT MICROCONTROLLER |
| W77E516F-40 | 8-BIT MICROCONTROLLER |
| W77E516P-25 | 8-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W77E516-25 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516A40DL | 功能描述:IC MCU 8-BIT 64K FLASH 40-DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W77 標準包裝: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 外圍設備:POR，PWM，WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| W77E516A40FL | 功能描述:IC MCU 8-BIT 64K FLASH 44-QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W77 標準包裝: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 外圍設備:POR，PWM，WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
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