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| 型號(hào)： | W83787IF |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類(lèi)： | 外設(shè)及接口 |
| 英文描述： | WINBOND I/O WITH SERIAL-INFRARED SUPPORT |
| 中文描述： | MULTIFUNCTION PERIPHERAL, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 4/123頁(yè) |
| 文件大?。?/td> | 1751K |
| 代理商： | W83787IF |
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W83787IF
Publication Release Date:Sep 1995
- 4 -
Revision A1
Host Interface, continued
SYMBOL
AEN
PIN
62
63
64
100
98
I/O
I
I
I
O
I
FUNCTION
System address bus enable
CPU I/O read signal
CPU I/O write signal
When DRQ2 = 1, a DMA request is being made by the FDC
DMA Acknowledge. When this pin is active, a DMA cycle is underway
and the controller is executing a DMA transfer.
Terminal Count. When active, this pin indicates termination of a DMA
transfer.
Interrupt request generated by FDC
Interrupt request generated by UART A or UART B when their addresses
are COM1 or COM3.
This interrupt request can be tri-stated by setting bit 3 of HCR low.
This signal is at high impedance after each reset operation.
Interrupt request generated by UART A or UART B when their addresses
are COM2 or COM4.
Same as IRQ4
When IRQ7 = 1 and interrupt request is being made by the printer, this
pin is pulled high internally.
In EPP or ECP mode, IRQ7 is pulsed low, then released to allow sharing
of interrupts.
In Extension Adapter mode this pin is a DMA Request generated by
Extension Adapter. This request is output directly from XDRQ.
In ECP mode, this pin is the parallel port DMA Request output.
During power-on reset, this pin is pulled down internally and is defined as
HPRTM1, which is used for selecting the mode of the parallel port (see
Table 1-1).
In printer mode, this pin is for data direction control. When it is set to low,
the parallel port functions as an output port. When it is set to high, the
direction of the data bus is controlled by Bit 5 (DIR) of the printer control
register and Bit 7 (PRTBEN) of CR3. This pin is pulled up internally.
In Extension Adapter mode, this pin is the DMA acknowledge for the
Extension Adapter. When this pin is active, a DMA cycle is underway
and the controller is executing a DMA transfer.
In ECP mode, this pin is the parallel port DMA Acknowledge input.
24Mhz XTAL/Oscillator/Clock input
IOR
IOW
DRQ2
DACK2
TC
97
I
IRQ6
IRQ4
99
37
O
O
IRQ3
44
O
IRQ7
23
O
PDRQX
HPRTM1
4
I/O
PRTOE
PDACKX
18
I
XTAL1
7
I
XTAL2
8
O
XTAL output
相關(guān)PDF資料 |
PDF描述 |
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| W83787F | WINBOND I/O WITH SERIAL-INFRARED SUPPORT |
| W83791D | W83791D Winbond H/W Monitoring IC |
| W83791SD | H/W MONITORING IC |
| W83791SG | H/W MONITORING IC |
| W83877AF | Multi-Function I/O Port Controller(多功能輸入／輸出口控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| W83791D | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:Winbond H/W Monitoring IC |
| W83791G | 功能描述:IC MONITOR H/W 48-LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類(lèi)型:內(nèi)部和外部 感應(yīng)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(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫(kù) 輸出類(lèi)型:2 線 SMBus? 輸出警報(bào):無(wú) 輸出風(fēng)扇:無(wú) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱(chēng):296-22675-6 |
| W83791SD | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:H/W MONITORING IC |
| W83791SG | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:H/W MONITORING IC |
| W83792AD | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:H/W Monitoring IC (CSB Version) |
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