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參數(shù)資料
| 型號： | W83787F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | WINBOND I/O WITH SERIAL-INFRARED SUPPORT |
| 中文描述： | 華邦的I /串行O型紅外線支持 |
| 文件頁數(shù)： | 44/123頁 |
| 文件大小： | 1751K |
| 代理商： | W83787F |
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W83787IF
Publication ReleaseDate:Sep 1995
- 44 -
Revision A1
4.2.9 User-defined Register (UDR) (Read/Write)
This is a temporary register that can be accessed and defined by the user.
4.2.10 IRQ3/IRQ4 Setting
IRQ3 and IRQ4 are the interrupt pins for UARTA and UARTB in the W83787IF. These two interrupt
pins switch automatically inside the chip depending on the address setting of UARTA and UARTB.
When the address of UARTA or UARTB is selected as COM1 or COM3, interrupt requests for the
UART are sent out of W83787IF via IRQ4. If the address of UARTA or UARTB is selected as COM2
or COM4, interrupts are sent out via IRQ3. Thus when UARTA is set as COM1, UARTB should not be
set as COM3, and vice versa. When UARTA is set as COM2, UARTB should not be set as COM4,
and vice versa.
4.3 Infrared Interface
The infrared interface supports a two-way wireless communication using infrared as a
transceiver/receive media. It uses a UART B port to serve as data transmission and supports IrDA
and Amplitude Shift Keyed IR (ASK-IR).
In the IrDA mode, the serial transmission maximum baud rate can be up to 115.2k. When the UART
B send a zero signal, the IRTX encoder encodes a pulse width with 3/16 bit-time or fixed 1.6us to
output on IR emitter. If UART B send a high signal, then the encoder have no data output to IR
emitter. The decoder receiving a pulse with 3/16 bit-time or 1.6us represents a start bit. (Refer to AC
timing for the parameters of the IrDA waveform).
In the ASK-IR mode, the serial transmission maximum baud rate is only 19200 bps. When the UART
B send a zero signal, the encoder modulate 500KHZ sending to IR emitter. (Refer to AC timing for the
parameters of the ASK-IR waveform).
In the half duplex, the receiver does not receive any input data when transceiver transmit data. That
is, during the transmission, the receiver does not disturb it-self from the self-emitter.
5.0 PARALLEL PORT
5.1 Printer Interface Logic
The parallel port of the W83787IF makes possible the attachment of various devices that accept eight
bits of parallel data at standard TTL level. The W83787IF supports an IBM XT/AT compatible parallel
port (SPP), bi-directional parallel port (BPP), Enhanced Parallel Port (EPP), Extended Capabilities
Parallel Port (ECP), Extension FDD mode (EXTFDD), Extension 2FDD mode (EXT2FDD), Extension
Adapter mode (EXTADP), and JOYSTICK mode on the parallel port. Refer to the configuration
registers for more information on disabling, power-down, and changing the base address of the
parallel port and on selecting the mode of operation.
Table 5-1 shows the pin definitions for different modes of the parallel port.
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相關代理商/技術(shù)參數(shù) |
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| W83787IF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O WITH SERIAL-INFRARED SUPPORT |
| W83791D | 制造商:WINBOND 制造商全稱:Winbond 功能描述:Winbond H/W Monitoring IC |
| W83791G | 功能描述:IC MONITOR H/W 48-LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標準包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| W83791SD | 制造商:WINBOND 制造商全稱:Winbond 功能描述:H/W MONITORING IC |
| W83791SG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:H/W MONITORING IC |
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