Specifications

Chapter 2 Product Overview
ReadyBoard 800 Reference Manual 11
Major Integrated Circuits (ICs)
Table 2-1 lists the major integrated circuits (ICs or chips) on the ReadyBoard 800, including a brief
description of each, and Figure 2-4 shows the location of the major chips.
Table 2-1. Major Integrated Circuit Description and Function
Chip Type Mfg. Model Description Function
CPUs (U5) Intel Pentium M
Celeron M
LV 1.4 GHz, ULV 1.0 GHz, or ULV
600 MHz CPU’s
Embedded
CPU
Memory
Hub (U7)
Intel 82855GME Northbridge functions plus Video Memory and
Video
I/O Hub
(U6)
Intel 82801DBM
Southbridge functions (provides some
of standard I/O functions)
I/O Functions
Super I/O
(U14)
Winbond
Electronics,
Corp.
W83627HF
Super I/O controller provides
remaining standard I/O functions
I/O Functions
Ethernet
Controllers
(U12, U13)
Intel
82551ER
82541GI
Ethernet chips provide two independent
10/100BaseT and 1000/100/10BaseT
based network channels
Ethernet
Functions
X
2
U7
U5
U15
U2
BT1
U13
U12
U10
U11
J12
JP3
JP4
J13
J17
J16
J18
J19
J9
J7
J8
J10
JP2
U14
Q4
Q6
Y2
X3
J4
J6
JP5
U1
J2
J1
J3
JP1
J14
D2
SW1
J21
J15
Q5
Q7
J11
U6
F2
F1
F3
Y1
L25
CPU (U5)
Memory Hub
(Northbridge)
(U7)
I/O Hub
Southbridge)
(U6)
(
Gigabit
Ethernet
Controller
(U13)
Ethernet
Controller
(U12)
Flash
(U10)
Super I/O
(U14)
Clock
Synthesizer
(U15)
Lithium
Battery
(B1)
RB800_01aa
Figure 2-4. Component Location (Top view)