Chapter 3

Signals and Pinout Tables

NOTE Some signals have special functionality during the reset process. They may bootstrap some basic important functions of the module.

Table 3-21. Module Type Definition Signal Description

 

Signal

 

Description

 

 

 

 

 

I/O

Comment

 

TYPE[

 

The TYPE pins indicate to the Carrier Board the Pin-out Type that is

PDS

TYPE[0:2]#

 

0:2]#

 

implemented on the module. The pins are tied on the module to

 

 

signals are

 

 

 

 

either ground (GND) or are no-connects (NC). For Pinout Type 1,

 

 

available on all

 

 

 

 

these pins are don’t care (X).

 

 

 

 

modules

 

 

 

 

TYPE2#

 

TYPE1#

TYPE0#

 

 

 

 

following the

 

 

 

 

X

 

 

X

X

Pinout Type 1

 

 

 

Type 2-5 Pinout

 

 

 

 

NC

 

 

NC

NC

Pinout Type 2

 

 

 

standard.

 

 

 

 

 

 

 

 

 

The COM 830 is

 

 

 

 

NC

 

 

NC

GND

Pinout Type 3 (no IDE)

 

 

 

 

 

 

 

 

 

 

based on the

 

 

 

 

 

 

 

 

 

 

 

 

 

COM Express

 

 

 

 

The Carrier Board should implement combinatorial logic that

 

 

 

 

 

 

 

 

Type 2 pinout

 

 

 

 

monitors the module TYPE pins and keeps power off (e.g

 

 

 

 

 

 

 

 

 

 

therefore these

 

 

 

 

deactivates the ATX_ON signal for an ATX power supply) if an

 

 

 

 

 

 

 

 

pins are not

 

 

 

 

incompatible module pin-out type is detected.

 

 

 

 

 

 

 

 

 

 

connected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 3-22. Power and GND Signal Descriptions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Signal

 

Description

 

 

I/O

PU/PD

 

Comment

 

 

 

VCC_12V

Primary power input: +12V nominal. All

P

 

 

 

 

 

 

 

 

 

 

available VCC_12V pins on the connector(s)

 

 

 

 

 

 

 

 

 

 

 

shall be used.

 

 

 

 

 

 

 

 

 

 

GND

 

Ground - DC power and signal and AC signal

P

 

 

 

 

 

 

 

 

 

 

return path.

 

 

 

 

 

 

 

 

 

 

 

 

 

All available GND connector pins shall be used

 

 

 

 

 

 

 

 

 

 

 

and tied to carrier board GND plane.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

Reference Manual

COM 830

Page 48
Image 48
Ampro Corporation COM 830 manual Type, TYPE2# TYPE1# TYPE0#