Electronic Components Datasheet Search
  English  ▼


W83977EF-AW Datasheet(PDF) 7 Page - Winbond

Part # W83977EF-AW
Description  WINBOND ISA I/O
Download  142 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W83977EF-AW Datasheet(HTML) 7 Page - Winbond

Back Button W83977EF-AW Datasheet HTML 3Page - Winbond W83977EF-AW Datasheet HTML 4Page - Winbond W83977EF-AW Datasheet HTML 5Page - Winbond W83977EF-AW Datasheet HTML 6Page - Winbond W83977EF-AW Datasheet HTML 7Page - Winbond W83977EF-AW Datasheet HTML 8Page - Winbond W83977EF-AW Datasheet HTML 9Page - Winbond W83977EF-AW Datasheet HTML 10Page - Winbond W83977EF-AW Datasheet HTML 11Page - Winbond Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 142 page
background image
Publication Release Date: Apr. 2006
Revision 1.2
W83977EF/EG is an evolving product from Winbond's most popular I/O chip W83877F --- which
integrates the disk drive adapter, serial port (UART), IrDA 1.0 SIR, parallel port, configurable plug-
and-play registers for the whole chip --- plus additional powerful features: ACPI, 8042 keyboard
controller with PS/2 mouse support, 14 general purpose I/O ports, full 16-bit address decoding,
OnNow keyboard Wake-Up, OnNow mouse Wake-Up.
The disk drive adapter functions of W83977EF/EG include a floppy disk drive controller compatible
with the industry standard 82077/ 765, data separator, write pre-compensation circuit, decode logic,
data rate selection, clock generator, drive interface control logic, and interrupt and DMA logic. The
wide range of functions integrated onto the W83977EF greatly reduces the number of components
required for interfacing with floppy disk drives. The W83977EF supports four 360K, 720K, 1.2M,
1.44M, or 2.88M disk drives and data transfer rates of 250 Kb/s, 300 Kb/s, 500 Kb/s,1 Mb/s, and 2
W83977EF/EG provides two high-speed serial communication ports (UARTs), one of which supports
serial Infrared communication. Each UART includes a 16-byte send/receive FIFO, a programmable
baud rate generator, complete modem control capability, and a processor interrupt system. Both
UARTs provide legacy speed with baud rate up to 115.2k bps and also advanced speed with baud
rates of 230k, 460k, or 921k bps which support higher speed modems.
W83977EF/EG supports one PC-compatible printer port (SPP), Bi-directional Printer port (BPP) and
also Enhanced Parallel Port (EPP) and Extended Capabilities Port (ECP). Through the printer port
interface pins, also available are: Extension FDD Mode and Extension 2FDD Mode allowing one or
two external floppy disk drives to be connected.
The configuration registers support mode selection, function enable/disable, and power down function
selection. Furthermore, the configurable PnP features are compatible with the plug-and-play feature
demand of Windows 95TM, which makes system resource allocation more efficient than ever.
W83977EF/EG provides functions that complies with ACPI (Advanced Configuration and Power
Interface), which includes support of legacy and ACPI power management through SMI or SCI
function pins. W83977EF/EG also has auto power management to reduce power consumption.
The keyboard controller is based on 8042 compatible instruction set with a 2K Byte programmable
ROM and a 256-Byte RAM bank. Keyboard BIOS firmware are available with optional AMIKEY
Phoenix MultiKey/42
TM, or customer code.
W83977EF/EG provides a set of flexible I/O control functions to the system designer through a set of
General Purpose I/O ports. These GPIO ports may serve as simple I/O or may be individually
configured to provide a predefined alternate function.
W83977EF/EG also supports Power-loss control, and makes the system never miss to detect any
Wake-Up event provided by the chipset such as INTEL PIIX4
W83977EF is made to fully comply with Microsoft PC98 Hardware Design Guide. IRQs, DMAs, and
I/O space resource are flexible to adjust to meet ISA PnP requirement. Moreover W83977EF/EG is
made to meet the specification of PC98's requirement in the power management: ACPI and DPM
(Device Power Management).
Another benifit is that W83977EF/EG is of the same pin assignment of W83977AF, W83977F,
W83977TF, W83977ATF. Thus makes the design very flexible.

Similar Part No. - W83977EF-AW

ManufacturerPart #DatasheetDescription
W83977EF-AW WINBOND-W83977EF-AW Datasheet
736Kb / 150P
W83977EF-AW WINBOND-W83977EF-AW Datasheet
1,008Kb / 161P
Nuvoton Technology Corp...
W83977EF-AW NUVOTON-W83977EF-AW Datasheet
1Mb / 153P
   ISA I/O
More results

Similar Description - W83977EF-AW

ManufacturerPart #DatasheetDescription
W83977TF WINBOND-W83977TF_98 Datasheet
1,000Kb / 160P
W83977ATG WINBOND-W83977ATG Datasheet
1Mb / 198P
W83877F WINBOND-W83877F Datasheet
1Mb / 125P
W83877TG WINBOND-W83877TG Datasheet
968Kb / 154P
W83977F-A WINBOND-W83977F-A Datasheet
1Mb / 182P
W83627HF WINBOND-W83627HF Datasheet
1Mb / 185P
W83697HF WINBOND-W83697HF Datasheet
1Mb / 167P
W83977EF WINBOND-W83977EF Datasheet
736Kb / 150P
W83697SF WINBOND-W83697SF Datasheet
821Kb / 128P
W83977ATF WINBOND-W83977ATF Datasheet
1Mb / 207P
More results

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More

Datasheet Download

Go To PDF Page

Link URL

Privacy Policy
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com

Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com