Introduction
http://www.motorola.com/computer/literature
1-3
1
Figure 1-1. PATX3070 Motherboard Block Diagram
Temp
Sensor
Ethernet
USB
KBD/MS
IEEE-1284
COM
1
Wide Ultra SCSI
Wide Ultra SCSI
(HD68)
82443BX
North Bridge
AGP/Memory
Controller &
Processor to
PCI Bridge
Adaptec
AIC-7895
Ultra SCSI
Controller
Intel
82559ER
Ethernet
Controller
Super I/O
National
PC97317
Serial
EEPROM
Clock
Generator
Reset
Control
AGP Slot
RAID
port
DEC21152
PCI to PCI
Bridge
32
-bit
PCI
S
lot
32
-bit
PCI
S
lot
PIIX4E
South Bridge
BIOS
Flash
Watchdog
MAX705
Tick Timers
2-82C54
RTC
Battery
ISA
S
lot
ISA
S
lot
CompactFlash
I/O
Shield
optional
Secondary
PCI Bus
USB
1
USB
2
EI
DE
Primary
EI
DE
Secondary
32
-bit
PCI
S
lot
LM79
Monitor
Programmable
Power Supply
(HD68)
82443BX
North Bridge
AGP/Memory
Controller &
Processor to
PCI Bridge
Clock
Generator
Reset
Control
AGP Slot
DIMMs (168 pins, 3.3V, SDRAM, ECC)
SMBus
Shared
Slot
100 MHz Bus
Intel
82559ER
Ethernet
Controller
optional
32
-bit
PCI
S
lot
32
-bit
PCI
S
lot
Intel 82371EB
PCI to ISA/IDE Controller
Type 2
ISA
Secondary
IDE
Header
Primary
IDE
Header
USB
optional
Floppy
Header
IR
Header
Ethernet
COM
2
Primary
P
CI
Bus
ITP Test Port
Intel
Socket 370