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PCI POST code display post5a

PCI POST code display post5a
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Price: $27.00
Availability: 2 - 3 Days
Model: post5a
Manufacturer: PC Engines
Average Rating: Not Rated

 

Status

active

 

Part numbers

post5a = miniPCI POST code display with test pins, RoHS compliant

Spec

miniPCI format to fit WRAP boards and most modern notebook PCs. During power on self-test (POST), most PC BIOSes will write diagnostic codes to port 80h or port 84h (auto select, whichever is written first). Use post5a to display these codes on a dual digit LED display. Additional LEDs indicate the status of the power supply rails.

POST codes

A comprehensive table of POST codes can be found at BIOS central.

 

Test pins

J1: JTAG for PLD programming, manufacturing only
J2: RST, CLK, FRAME2# = FRAME# delayed by one cycle (filter assistance for logic analyzer), INTA#, INTB#, 3.3V, 5V, GND
J3: CBE3, GND, AD24..AD31
J4: CBE2, GND, AD16..AD23
J5: GND, PERR, DEVSEL, SERR, STOP, FRAME, TRDY, PAR, IRDY
J6: CBE1, GND, AD15..AD8
J7: CBE0, GND, AD7..AD0

 

Origin

Taiwan

Schematics

PDF

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