EMAC, INC.

PCM-4896

Device Type Single Board Computer
Processor CX GXm
Processor Speed 200/233/266/300MHz
Chip Set Cyrix
Video Chip Set Chips and Technology
Audio Chip Set Cyrix
Maximum Onboard Memory 128MB (SDRAM supported)
Maximum Video Memory 2MB 
Cache 16KB (located on the CPU)
BIOS Award
Dimensions 203mm x 146mm
I/O Options 32-bit PCI slot, ATX power connector, Audio in - CD-ROM, Solid-state flash disk socket, Ethernet 10BaseT connector, Flat panel connector, Floppy drive interface, IDE interface, IR connector, Parallel interface, PC/104 connector, PS/2 mouse/AT keyboard interface, Serial interfaces (4), Sound connector, USB interface, VGA connector


CONNECTIONS
Purpose

Location

 Purpose

Location
16-bit PC/104 connector CN1 Serial interface 2 CN13B
8-bit PC/104 connector

CN1A

 Serial interface 3 CN13C
USB interface

CN2

 Serial interface 4 CN13D
IDE interface

CN4

 Floppy drive interface CN14
Front panel connector

CN5

 CPU fan power J3
IR connector CN6 Power switch J5
Flat panel connector

CN7

 Audio in - CD-ROM J7
PS/2 mouse/AT keyboard interface CN8 Ethernet Rx LED connector LED1/Pins 1 & 2
VGA connector CN9 Ethernet Link LED connector LED1/Pins 3 & 4
Sound connector

CN10

 Ethernet Tx LED connector LED1/Pins 5 & 6
Parallel interface CN11 32-bit PCI slot

PC1
10BaseT Ethernet connector

CN12

 ATX power connector PW1
Serial interface 1 CN13A Solid-state flash disk (DOC) socket U4
Note: Pin 1 location of LED1 is unidentified.


USER CONFIGURABLE SETTINGS

Function

Label

Position
  Internal buzzer selected

J1

  Closed
  External speaker slected

J1

Open

»

CMOS memory normal operation

J4

Pins 1 & 2 closed
  CMOS memory clear

J4

Pins 2 & 3 closed
» Audio output amplified

J6

    Pins 3 & 5, 4 & 6 closed
  Audio output not amplified J6

  Pins 1 & 3, 2 & 4 closed
» Flat panel connector (CN7) voltage select 3.3V

J8

Pins 2 & 3 closed
  Flat panel connector (CN7) voltage select 5V

J8

Pins 1 & 2 closed
» Flat panel clock signal select SHF J9 Pins 2 & 3 closed
  Flat panel clock signal select ASHF J9 Pins 1 & 2 closed

»

Factory configured - do not alter

J10

Pins 2 & 3 closed

»

Factory configured - do not alter

SW1/4

Unidentified

»

Factory configured - do not alter SW2/2 Unidentified

»

Factory configured - do not alter SW2/3 Unidentified

»

Factory configured - do not alter SW2/4 Unidentified

»

Factory configured - do not alter SW2/5 Unidentified

»

Factory configured - do not alter SW2/6 Unidentified
Note: Pin 1 locations of J4, J6, J8, J9, J10, SW1 & SW2 are unidentified.


DIMM CONFIGURATION

Size

Bank 0

16MB

(1) 2M x 64

32MB

(1) 4M x 64

64MB

(1) 8M x 64

128MB

(1) 16M x 64
Note: Board supports SDRAM memory.


CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

SW1/1

 SW1/2 SW1/3 SW2/1
200MHz 33MHz 6.0x Off On Off On
233MHz 33MHz 7.0x Off Off On On
266MHz 30MHz 9.0x On Off On Off
300MHz 30MHz 10.0x On On Off Off

Note: Pin 1 locations of SW1 & SW2 are unidentified.


SERIAL INTERFACE 2 SELECTION

Setting

J13

J14
»

RS-232

Pins 1 & 2, 4 & 5, 7 & 8, 10 & 11 closed

 Pins 1 & 2 closed
 

RS-422

Pins 2 & 3, 5 & 6, 8 & 9, 11 & 12 closed

 Pins 3 & 4 closed
 

RS-485

Pins 2 & 3, 5 & 6, 8 & 9, 11 & 12 closed

 Pins 5 & 6 closed

Note: Pin 1 locations of J13 & J14 are unidentified. All pins should be open unless designated as closed.


SERIAL INTERFACE 3 VOLTAGE SELECTION

Setting

J12/Pins 1 & 2

 J12/Pins 3 & 4 J12/Pins 5 & 6
»

RI

Open

 Open Closed
 

+5V

Open

 Closed Open
 

+12V

Closed

 Open Open

Note: Pin 1 location of J12 is unidentified.


SERIAL INTERFACE 4 VOLTAGE SELECTION

Setting

J11/Pins 1 & 2

 J11/Pins 3 & 4 J11/Pins 5 & 6
»

RI

Open

 Open Closed
 

+5V

Open

 Closed Open
 

+12V

Closed

 Open Open

Note: Pin 1 location of J11 is unidentified.


SOLID-STATE FLASH DISK (DOC) ADDRESS SELECTION

Address

SW1/5

 SW1/6

Disable

On

 On

D400

Off

 Off
D800 On Off
DC00 Off On

Note: Pin 1 location of SW1 is unidentified.