Block Diagram With Optional Usb 2.0 Support - Intel BOXD850EMD2L - 850E 478PIN MAX-2GB UATX 3PCI Specifications

Figure 4 is a block diagram of the major functional areas of desktop boards D850EMD2 and
D850EMV2 with the USB 2.0 manufacturing option. See Figure 7 on page 28 for USB port
routing.
Primary/
Secondary IDE
µPGA478
System Bus
Processor Socket (400/533 MHz)
850E Chipset
AGP
Interface
82850E Memory
Controller Hub
4X AGP
Connector
(1.5 V only)
Dual RAMBUS
RAMBUS Bank 0
(RIMM1 and RIMM2)
Hardware
Monitor
PCI Slot 1
PCI Slot 2
PCI Slot 3
PCI Slot 4
PCI Slot 5
= connector or socket
Figure 4. Block Diagram with Optional USB 2.0 Support
ATA-66/100
AHA
Bus
(MCH)
Channels
RAMBUS Bank 1
(RIMM3 and RIMM4)
SMBus
PCI
USB
D850EMV2
Only
I/O
Controller
LPC
Bus
82801BA
I/O Controller Hub
(ICH2)
Physical
Layer
Interface
CSMA/CD
Unit
Interface
AC Link
AD1885
Audio Codec
NEC µPD720100
USB 2.0
USB
Host Controller
(optional)
Product Description
Diskette Drive
Connector
Serial Ports
Parallel Port
PS/2 Mouse
PS/2 Keyboard
4 Mbit
Firmware Hub
(FWH)
LAN
Connector
(optional)
CNR
Connector
(optional)
Line In
Line Out
Mic In
Auxiliary Line In
CD-ROM
Back Panel
USB Ports (2)
Front Panel
USB Ports (2)
OM14438
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