Functional Description
CPC805
C P C 8 0 5 U s e r M a n u a l
24
© 2 0 1 2 F a s t w e l v . 0 0 1 a E P r e
2
Functional Description
2.1
Module Interfaces and Connectors
2.1.1
PC/104 PCI and StackPC Interfaces
PC/104 PCI and StackPC connectors allow CPC805 to interface with expansion modules such as
A/D converters, digital I/O modules, etc. A maximum of four expansion boards may be stacked on
the PC/104 PCI connector to form a fully-integrated system.
PC/104 PCI Interface
The interface uses a 120-pin (30x4) 2 mm header (XS4) located on the top of the board. This
interface header accepts 4 stackable modules and carries all of the appropriate 32-bit 33 MHz PCI
signals. Four PCI bus mastering devices are supported.
Figure 2-1:
PC/104 PCI XS4 Connector Contacts Layout
Table 2-1:
PC/104 PCI XS4 Connector Contacts Designation
Pin
A
B
C
D
1
GND/5.0V_KEY2
Reserved
+5
AD00
2
VI/O
AD02
AD01
+5V
3
AD05
GND
AD04
AD03
4
/C/BE0
AD07
GND
AD06
5
GND
AD09
AD08
GND
6
AD11
VI/O
AD10
M66EN
7
AD14
AD13
GND
AD12
8
+3.3V
/C/BE1
AD15
+3.3V
9
/SERR
GND
Reserved
PAR
10
GND
/PERR
+3.3V
Reserved
11
/STOP
+3.3V
/LOCK
GND
12
+3.3V
/TRDY
GND
/DEVSEL
13
/FRAME
GND
/IRDY
+3.3V
14
GND
AD16
+3.3V
/C/BE2
15
AD18
+3.3V
AD17
GND
16
AD21
AD20
GND
AD19
17
+3.3V
AD23
AD22
+3.3V
