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參數資料
| 型號： | W83877TF |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 外設及接口 |
| 英文描述： | Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器) |
| 中文描述： | MULTIFUNCTION PERIPHERAL, PQFP100 |
| 封裝： | QFP-100 |
| 文件頁數： | 69/154頁 |
| 文件大小： | 821K |
| 代理商： | W83877TF |
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W83877TF
Publication Release Date: March 1998
- 65 -
Version 0.61
5.0 PLUG AND PLAY CONFIGURATION
A powerful new plug-and-play function has been built into the W83877TF to help simplify the task of
setting up a computer environment. With appropriate support from BIOS manufacturers, the system
designer can freely allocate Winbond I/O devices (i.e., the FDC, PRT and UART ) in the PC's I/O
space (100H - 3FFH). In addition, the W83877TF also provides 8 interrupt requests and 3 DMA pairs
for designers to assign in interfacing FDCs, UARTs, and PRTs. Hence this powerful I/O chip offers
greater flexibility for system designers.
The PnP feature is implemented through a set of Extended Function Registers (CR20 to 29). Details
on configuring these registers are given in Section 8. The default values of these PnP-related
registers set the system to a configuration compatible with environments designed with previous
Winbond I/O chips.
6.0 ACPI /LEGACY FEATURE AND AUTO POWER MANAGEMENT
6.1 ACPI/Legacy power management
W83877TF supports both ACPI and legacy power management models. For the ACPI power
management, the SCI pin is dedicated to the SCI interrupt signal for the SCI interrupt handler; For
the legacy power management, the SMI pin is dedicated to the SMI interrupt signal for the SMI
interrupt handler.
Two register blocks is used for the ACPI/Legacy power management. They are the PM1 and GPE
register blocks. Their base addresses are held in the W83877TF configuration registers CR33 and
CR34 respectively. Configuration registers CR40 to CR45 are for the legacy power management. The
above configuration registers hold the interrupt event enable and status bits of the SMI interrupts.
Control over the routing of SCI and SMI interrupts to the output pins is also contained in the above
registers.
One 24-bit power management timer is also implemented. It provides an accurate time value used by
the system software to measure and profiles system idleness.
6.2 Device(auto) power management
W83877TF also provides the auto power management function for each device within it. They are the
printer port, FDC, UART A, and UART B devices in W83877TF respectively. Device idle and trap
status are provided to indicate the device's working/sleeping state. Device idle timer with
programmable initial value is provided for each device, which enter the powerdown state when the
powerdown conditions are met. Any access to certain registers and external event input will wake up
the devices. The global stand-by timer deals with the other logic part excluding the printer port, FDC,
UART A , and UART B devices. The global stand-by timer reloads and counts down as soon as the 4
devices enter the powerdown mode and W83877TF enters the powerdown mode as soon as it
expires. Once any device is awakened, the global stand-by is also awakened. The initial count values
of the devices are held in the configuration registers CR35 to CR39.
相關PDF資料 |
PDF描述 |
|---|---|
| W83971D | AC97 AUDIO CODEC |
| W83977AF | PLUG & PLAY 1.0A COMPLIANT |
| W83977EF | WINBOND I/O |
| W83977F | PLUG & PLAY 1.0A COMPLIANT |
| W83977TF-AW | I/O chip disk drive adapter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W83877TG | 功能描述:IC I/O CONTROLLER 100-PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應商設備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| W83910F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IPMI BMC plus H/W Monitor. UART. 5-sets Master/Slave SMBus. for Server PC Application |
| W83960G (REV. B) | 制造商:Nuvoton Technology Corp 功能描述:IC H/W MONITOR 64LQFP |
| W83971D | 制造商:WINBOND 制造商全稱:Winbond 功能描述:AC97 AUDIO CODEC |
| W83977A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O |
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