Intel D845GLLY D845GL_Boards_TechProdSpec - Page 11

Block Diagram - front panel

Page 11 highlights

Product Description 1.1.2 Block Diagram Figure 1 is a block diagram of the major functional areas of the Desktop Boards. = connector or socket Primary/ Secondary IDE UDMA 33 and ATA-66/100 µPGA478 Processor Socket System Bus (400 MHz) USB LPC Bus I/O Controller SMBus LPC Bus Back Panel / Front Panel USB Ports Serial Ports Parallel Port PS/2 Mouse PS/2 Keyboard Diskette Drive Connector Intel 82845GL Graphics and Memory Controller Hub (GMCH) AHA Bus VGA Port DIMM Banks (2) Display Interface Memory Bus SMBus PCI Bus Intel 82801DB I/O Controller Hub (ICH4) 4 Mbit Firmware Hub (FWH) Intel 845GL Chipset CSMA/CD Unit Interface AC Link Physical Layer Interface* LAN Connector* PCI Slot 1 PCI Slot 2 PCI Slot 3 PCI Slot 4 SMBus STAC9750/66 Audio Codec Line In Line Out Mic In Auxiliary Line In CD-ROM * For specific information on this feature, refer to the Product Supplement Document for your Desktop Board. Figure 1. Block Diagram OM14187 11

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Product Description
11
1.1.2
Block Diagram
Figure 1 is a block diagram of the major functional areas of the Desktop Boards.
Intel 845GL Chipset
Intel 82801DB
I/O Controller Hub
(ICH4)
Intel 82845GL
Graphics and
Memory Controller
Hub (GMCH)
4 Mbit
Firmware Hub
(FWH)
AHA
Bus
System Bus
(400 MHz)
ยต
PGA478
Processor Socket
Primary/
Secondary IDE
Diskette Drive
Connector
LPC Bus
I/O
Controller
PS/2 Keyboard
PS/2 Mouse
Parallel Port
Serial Ports
UDMA 33 and
ATA-66/100
LPC
Bus
OM14187
STAC9750/66
Audio Codec
Auxiliary Line In
Mic In
Line Out
CD-ROM
Line In
LAN
Connector
*
Physical
Layer
Interface*
DIMM Banks (2)
= connector or socket
PCI Bus
SMBus
AC Link
Back Panel /
Front Panel
USB Ports
USB
VGA Port
Display
Interface
Memory Bus
*
For specific information on this feature, refer to the Product Supplement Document for your Desktop Board.
PCI Slot 1
PCI Slot 2
PCI Slot 3
PCI Slot 4
SMBus
SMBus
CSMA/CD
Unit
Interface
Figure 1.
Block Diagram