Siemens SIMATIC Box PC 820 - Block Diagram of the Motherboard

2-8
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
2.6 Block Diagram of the Motherboard
DIMM Socket 0 64,128,256MB
3.3/5 V PCI –BUS 32Bit Datenbus gemultiplext mit 32Bit Adressbus ( 33 MHz Bustakt )
bus module
Keyboard
with/without Trackball
PS/2
Mouse
Communication TTY/AG
Modem
Printer Centronics
COM2
RS485
L2–DP 12MB/s
75150/154
TTL TTY
75150/154
RC–Netz
protection
EPP/ECP
PentiumIII
SLot 1
L2–Cache
512K
HA(0..31)
HD(0..63) + ECC
Cntl.
DC/DC
Vtt = 1,5V
5V–>1,5V
GTL–Host Bus 32 Bit Adressbus, 64 Bit Datenbus + ECC ( 100MHz Bustakt )
GTL– Power supply Termination Voltage Vtt=1,5V
DIMM Socket 2 64,128,256MB
SDRAM SDRAM
64 +8(ECC)
DIMM Socket 1 64,128,256MB
SDRAM
Power– Supply
ECC ECC ECC
12 x 100MHz
5V / 2,5V
14,3198MHz
RISER
Soft On/Off
potential getrennt
ASPC/2
max. 128k Memory
100 PQFP
+5V
+3.3V +12V
–12V –5V
’ABT245
29F040
BIOS
512KByte
32 PLCC
DC / DC
Clocksynthesizer
CD9318
1 shared ISA PCI
2 ISA
+5VAUX
Modul
3.5”Floppy 1.44 MB
SDRAM Clock– Buffer
LPT1
COM1
Ultra–IO FDC37B787
128 PQFP
5V
33MHz
SA(0:15),SD(0:7), DRQ/DACK (0:3),
BGA 492
82443BX 440 BX
100 MHz
100 MHz
DC / DC
VRM– On Board
( UCC3588 )
48MHz( USB/ASPC )[2] 100 / 66MHz ( Host/BX )[4]
14,318MHz ( OSC ) [3] 33MHz ( PCI ) [8]
CY2318NZ
33 MHz
3,3V
VCC Core 2.0V
PCI9050
160 PQFP
5V
32KHz
3,6V
Prim.–IDE
Sec. IDE
ATA–33 hard disk
CD–ROM
Battery
32KHz
5 V Local –BUS 16Bit Datenbus, Chipsel. ( 8 MHz Bustakt )
33MHz
33MHz
33MHz
Page–Select für 4 128 K–Pages
USB Port setlich
Ethernet 10BT/100BTX RJ–45
BGA 196
Fast Ethernet 82559
3.3V AUX
66 MHz
3.3V AGP–Bus 32Bit Datenbus gemultiplext mit 32Bit Adressbus ( 66 MHz Bustakt )
5V ISA–Bus 8/16Bit Daten 24Bit Adressen ( 8 MHz Bustakt )
14.318MHz
14.318 MHz
48 MHz
100 MHz
100MHz
Monitoring functions
Display
Watchdog/ Temperature
Watchdog–Funktion
Temperature Sensor
MAX 1617
Temperature sensors
CPU
Device
PIIX4E
Systemcontroller Echtzeituhr Standbylogic
BGA 324
3,3V
33MHz
12
100 MHz
2 PCI
ext. XGA
1280x1024x256
66MHz
VGA-Controller 3.3V C&T 690x0 2/4 MB Video-Memory integrated 272 BGA
C M O S
40p
FI/TFT–Dislpay
XGA – Display
1024x768 LCD
L V D S
20p
USB Port Frontstecker
Figure 2-2 Motherboard
Motherboard
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