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3.4. ONBOARD INTERCONNECTIVITY
3.4.1. PCI-946-1 Block Diagram
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System
CLOCK
370PPGA
CLK
CONNECTOR
XTL
Clock
.
14MHz
Synthes
SMBus
3 x 168P
Clock
DIMMs
Buffer
3.3V SDRAM
(Max = 768MB)
USB
PORT
USB
PORT
INTEL
PIIX4
82371AB
PCI-TO-ISA
Programmable
Br idge
Watchdog
(324PBGA)
(CPLD)
BAT
3.6V
3.3V LOCAL ISA
24C32
EEPROM
BIOS
64-BIT S/N
I2C
Boot Block
EPROM
Flash
Mult/function
INTEL CELERO N PROCESSOR (PPGA)
Celeron CPU Core
128KB
333-500M Hz
L2 Cache
Thermal
C eleron Processor
Sensor
Therm.
SYSTEM BUS
TAP
GTL+ BUS
MAX
1617
INTEL
DRAM BUS
443BX
AGP BUS
(72-bit)
82443BX
North
Br idge
(492PBGA)
3.3V PCI BUS
SECONDARY
ADAPTEC
PRIMARY
Ultra SCSI
IDE
Controller
AIC-7880
(160PQFP)
Compact
Flash
IDE mode
OSC
SER.
40MHz
EPROM
162245
CPLD
XCVRS
5V ISA BUS
SMC
COM1
FDC37C67X
Connector
Super I/O
Controller
COM2
(100PQFP)
Connector
Connector
Mouse
PS/2 MOUSE
Connector
3-9
Software Setups
VCORE
+5VDC
SWITCHING
VCC3
& LINEAR
REGULATOR
VTT
+12VDC
VCC2.5
ITP TEST
CONNE CTOR
C&T 69000
64-Bit SVGA
SVGA
Controller
Connector
With 2 MB
Memory
PCI Edge
(256mBGA)
Connector
Ultra SCSI
INTEL 82559
68Pin
Fast Ethern et
Connector
Controller
Fast-SCSI 2
(196mBGA)
50Pin
Connector
93C56
10/100
EEPROM
Base-Tx
Connector
ISA Edge
Connector
PRINTER
Connector
FLOPPY
Connector
PS/2 KBD
Connector
Connector
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