Technical data
Computing Unit Expansions
4-6
SIMATIC Panel PC 670 Computing Unit Equipment Manual
Edition 12/01
4.1.4 Block Diagram of the Motherboard
3.3/5 V PCI BUS AD(0..31), CTRL(26) ( 33 MHz clock rate)
29F040
BIOS
512KB
ISA BUS 16–bit data, 24–bit addressing, 5V
VGA controller
3.3V
AC
Power
supply
120V/
220V
32 PLCC
PIIX4E
System controller
Secondary IDE
CDROM option
BGA 324
32KHz
48MHz
33MHz
LS 120 disk option
ACPI
Embedded mobile module (EMC2)with
VRM, L2 cache, 440BX, thermal sensor
300–366 MHz
MD(0.63)
64
33
Clock buffer
1
2
HCLK
PCLK
14.318 MHz
24MHz clock (super–I/O )
100/66MHz clocks ( HOST )
33MHz clocks ( PCI )
48MHz clock ( USB )
14,318MHz clock
Clock synthesizer
48TSSOP
PS_PWROK
400 PIN BGA socket
GTL bus
VRM
440BX
2.5V I/O
1.7V core
2.5/3.3V
492 BGA
RAS/CSA 2/3
Bank 3/4
2 2
CKE2/3
RAS/CSA 0/1
Bank 1/2
EDO/SDRAM
3.3V
CKE0/1
CTRL
AD(0:31)
CTRL
AD(0:31)
66MHz
2632
VR_ON
2
+5V
V_5
4
Module ID
2
SM BUS
8
8
SD(0:7)
XD(0:7)
3.3V
EDO/SDRAM
SM BUS
5V CMOS–
DSTN/TFT display
TFT LVDS display
LVDS
3.5” disk
1,44 MB
Keyboard/trackball
PS/2
Mouse
MUX
Communication
TTY/PLC
COM 1
TTL
TTY
Printer
Centronics
LPT1
RC network
protection
EPP/ECP
160PQFP
24MHz
Ultra IO
FDC37B727
SA(0:15),SD(0:7),IRQ(1:15),
DRQ(0:3),DACK(0:3)
48
7
CTRL
SA(0:23)
SD(0:15)
DREQ(0:7)
DACK(0:7)
IRQ(1:15)
3
Page select
for 4
128 K pages
CTRL
2
5
70
Primary IDE
ATA–33 hard disk, 2.5’’/3.5’’
USB Port1/2
MA0..13
RAS/CSA 0..3
CAS/DQMA 0..7
SRAS,SCAS,CKE0..3,WE
Int. speaker
+ 3.3V
C T B69000
2MB SGRAM integrated
AD(0:31)
32
CTRL
26
Ext. XGA
1280 x 1024 x 256
VCC/
VPP
Cntl.
Slot1
Type II/III
PCCard
60
A(0:25)
D(0:15)
CTRL(18)
AD ( 0..31)
26
32
33MHz
RS485
L2–DP
12MB/s
ASPC/2
PCI9050
Max. 128k memory
33MHz
48MHz
100 PQFP
160 PQFP
Cntl.
AD ( 0..31)
2632
RS485 hybrid
Card bus
PCI 1211
(208TQFP)
DC
Power
supply
24V
say, modem
COM 2
V24
I/O IF
for
front sides
Contrast
voltage
AGP 1X
LED’s
RJ45
Intel 10/100Mbit
Ethernet 82559
33MHz
BGA256
Cntl.
AD ( 0..31)
2632
Ethernet
xformer
25MHz
3.3 to 5V
Translator
3.3V PCI
Bus module
RISER
1 PCI slot
1 shared
ISA/PCI slot
WATCHDOG
Relay
Temp.
monitoring
USB
socket
USB
(port 0)
P&D
module
connector
USB
(port 0)
5V CMOS
USB
(port 1)
distributed
fronts
USB tacho
Status LEDs
Processor
L2 cache
L1 cache
+3.3V
V_3
+5V
V_DC
+5V
+ 12V
– 12V
+ – 18V isolated
SYSTEM RESET
Reset button
Alternative
COM 2
3/3.6V
32KHz
V24
Touch
options
LED’s
Figure 4-3 Block Diagram, Computing Unit