Specifications

EPC-3305 Hardware Reference
44
Organization
Block diagram
The next figure shows the division and interconnection of EPC-3305 functions.
These are described below.
Features
CPU module
The design of the board centers on an Intel EMC2 (Embedded Mobile Cartridge).
The EMC2 incorporates a 500MHz Pentium III processor. The 443BX Host Bridge
and core voltage power supply are also included on the EMC2.
The module connects to the board by a 400-pin connector that routes the PCI and
Memory bus to the system and power and ground pins to the module.
The CPU bus frequency is 100MHz.
Figure 4-1. Block diagram of the EPC-3305
443BX host
bridge
Switching
regulator
Intel PIII
LPM
Mobile
PIII
PCIAGP
FSB
128MByte
on-board
SDRAM
128MByte
on-board
SDRAM
128MByte
on-board
SDRAM
128MByte
on-board
SDRAM
Bank 0 Bank 2 Bank 3 Bank 4
Kybd,
Mouse
HDR
FDD
HDR
PIIX4E
PCMSA
Flash
memory
Super
I/O
Watchdog
timer and
Reset
Controller
batt.
PCI-33MHzISA
64bit
cPCI
SEC IDE
USB0 USB1
COM1, 2
PMC B PMC BRJ45RJ45
Reset
switch
cPCI J5cPCI J3 cPCI J1/J2
ENET
10/100
BaseT
ENET
10/100
BaseT
PCI/PCI
bridge
PMC
J11/J12
PMC
J21/J22
PMC
J14
PMC
J24
Front panel