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參數資料
| 型號： | W77LE58F-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, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁數： | 64/81頁 |
| 文件大?。?/td> | 657K |
| 代理商： | W77LE58F-25 |
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Preliminary W77LE58
- 64 -
SBUF
RB8
Transmit Shift Register
Receive Shift Register
TX
SHIFT
PAROUT
D8
Internal
Data Bus
Internal
Data
Bus
TXD
RXD
Serial Port
Interrupt
SMOD=
(SMOD_1)
SAMPLE
Write to
SBUF
TX
START
TX
CLOCK
SOUT
0
1
TI
PARIN
STOP
START
LOAD
CLOCK
Read
SBUF
RI
SERIAL
CONTROLLER
RX CLOCK
LOAD
SBUF
RX START
RX SHIFT
2
16
1-TO-0
DETECTOR
BIT
DETECTOR
16
CLOCK
SIN
D8
TB8
Clock Source
Mode input
div. by 4 osc/2
div. by 64 osc/32
div. by 1024 osc/512
Figure 22. Serial Port Mode 2
If the first bit detected after the falling edge of RxD pin, is not 0, then this indicates an invalid start bit,
and the reception is immediately aborted. The serial port again looks for a falling edge in the RxD
line. If a valid start bit is detected, then the rest of the bits are also detected and shifted into the
SBUF. After shifting in 9 data bits, there is one more shift to do, after which the SBUF and RB8 are
loaded and RI is set. However certain conditions must be met before the loading and setting of RI can
be done.
1. RI must be 0 and
2. Either SM2 = 0, or the received stop bit = 1.
If these conditions are met, then the stop bit goes to RB8, the 8 data bits go into SBUF and RI is set.
Otherwise the received frame may be lost. After the middle of the stop bit, the receiver goes back to
looking for a 1-to-0 transition on the RxD pin.
MODE 3
This mode is similar to Mode 2 in all respects, except that the baud rate is programmable. The user
must first initialize the Serial related SFR SCON before any communication can take place. This
involves selection of the Mode and baud rate. The Timer 1 should also be initialized if modes 1 and 3
are used. In all four modes, transmission is started by any instruction that uses SBUF as a destination
register. Reception is initiated in Mode 0 by the condition RI = 0 and REN = 1. This will generate a
clock on the TxD pin and shift in 8 bits on the RxD pin. Reception is initiated in the other modes by
the incoming start bit if REN = 1. The external device will start the communication by transmitting the
start bit.
相關PDF資料 |
PDF描述 |
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| W77LE58P-25 | 8 BIT MICROCONTROLLER |
| W78151 | 8-BIT Microcontroller(8位的微控制器) |
| W78L51F-24 | 8-BIT MICROCONTROLLER |
| W78L51 | 8-BIT MICROCONTROLLER |
| W78L51-24 | 8-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W77LE58P-25 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| 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 標準包裝: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 外圍設備:電容感應，DMA，LCD，POR，PWM，WDT 輸入/輸出數:25 程序存儲器容量:64KB（64K x 8） 程序存儲器類型: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 數據轉換器:A/D 2x20b，D/A 4x8b 振蕩器型:內部 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 |
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