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參數(shù)資料
| 型號(hào)： | W78ERD2A40FL |
| 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, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | ROHS COMPLIANT, PLASTIC, QFP-44 |
| 文件頁數(shù)： | 14/76頁 |
| 文件大小： | 650K |
| 代理商： | W78ERD2A40FL |
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W78ERD2/W78ERD2A
- 14 -
Serial Port Control
Bit:
7
6
5
4
3
2
1
0
SM0/FE
SM1
SM2
REN
TB8
RB8
TI
RI
Mnemonic: SCON Address: 98h
BIT
NAME
FUNCTION
7
SM0/FE
Serial port, Mode 0 (SM0) bit or Framing-Error (FE) Flag: The SMOD0 bit in PCON
SFR determines whether this bit acts as SM0 or as FE. SM0 is described with
SMI1 below. When used as FE, this bit indicates whether the stop bit is invalid
(FE=1) or valid (FE=0). This bit must be manually cleared by software.
6
SM1
Serial port, Mode 1 (SM1) bit:
Mode: SM0 SM1 Description Length Baud rate
0 0 0 Synchronous 8 6(6T mode)/12(12T mode) T
clk
1 0 1 Asynchronous 10 Variable
2 1 0 Asynchronous 11 32/16(6T mode) or 64/32(12T mode) T
clk
3 1 1 Asynchronous 11 Variable
5
SM2
Multi-processor communication.
(Modes 2 and 3) Set this bit to enable the multi-processor communication feature.
With this feature, RI is not activated if the ninth data bit received (RB8) is 0.
(Mode 1) Set this bit to 1 to keep RI de-activated if a valid stop bit is not received.
(Mode 0) SM2 controls the serial port clock. If clear, the serial port runs at 1/12 the
oscillator. This is compatible with the standard 8052.
4
REN
Receive enable:
1 = Serial reception is enabled
0 = Serial reception is disabled
3
TB8
(Modes 2 and 3) This is the ninth bit to be transmitted. This bit is set and cleared by
software as desired.
2
RB8
(Modes 2 and 3) This is the ninth data bit that was received.
(Mode 1) If SM2 is 0, RB8 is the stop bit that was received.
(Mode 0) No function.
1
TI
Transmit interrupt flag: This flag is set by the hardware at the end of the eighth bit in
mode 0 or at the beginning of the stop bit in modes 1 – 3 during serial transmission.
This bit must be cleared by software.
0
RI
Receive interrupt flag: This flag is set by the hardware at the end of the eighth bit in
mode 0 or halfway through the stop bit in modes 1 – 3 during serial reception.
However, SM2 restricts this bit. This bit can be cleared only by software.
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PDF描述 |
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| W78ERD2A40PL | 8-BIT MICROCONTROLLER |
| W78ERD2 | 8-BIT MICROCONTROLLER |
| W78ERD2A40DN | 8-BIT MICROCONTROLLER |
| W78ERD2A40FN | 8-BIT MICROCONTROLLER |
| W78ERD2A40PN | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78ERD2A40FN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78ERD2A40PL | 功能描述:IC MCU 8-BIT 64K FLASH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W78 標(biāo)準(zhǔn)包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO，I²C，LIN，UART/USART 外圍設(shè)備:DMA，LVD，POR，PWM，WDT 輸入/輸出數(shù):27 程序存儲(chǔ)器容量:16KB（16K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 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:38-SSOP 包裝:托盤 |
| W78ERD2A40PN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78I052A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78I052A24DL | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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