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
1.8 GHz, LV 1.4 GHz, ULV 1.0 GHz,
or ULV 800 MHz CPUs
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
Figure 2-4. Component Location (Top view)
RB800RfM_01a
X
1
U7
U5
U15
U2
BT1
U13
U12
U10
U11
J12
JP3
JP7
J13
J17
J16
J18
J19
J25
J8
J10
F1
U14
Q4
Q6
Y2
X3
J4
J6
J24
U1
J2
J1
D5
JP1
J14
D2
J20
J21
J15
Q5
Q7
J11
U6
F2
F3
Y1
JP4
J7
J9
U3
J3
D15
JP2
X2
Q38
Q44
Q9
CPU (U5)
Graphics &
Memory Hub
(Northbridge)
(U7)
I/O Hub
Southbridge)
(U6)
(
Gigabit
Ethernet
Controller
(U13)
LPC I/O
(U11)
Flash
(U10)
Super I/O
(U14)
Clock
Synthesizer
(U15)
(Lithium
battery,
factory-
mounted
to U12 and
connected
to BT1)
Ethernet
Controller
(U12)