Merlin DP PCI Motherboard User’s Guide
Step 5 Attach Cables,
Continued
Onboard Adapters
The Merlin DP PCI motherboard has:
•
two serial ports J8 and J9,
•
a parallel port J2,
•
an IDE controller on the PCI bus. The primary IDE connector is J12. The
secondary IDE connector is J10, and
•
a floppy controller J1.
The serial and parallel port connectors are described below.
Conflicts
AMIBIOS minimizes conflicts between onboard and offboard I/O devices.
AMIBIOS automatically checks the adapter cards installed in the expansion
slots on the Merlin DP PCI motherboard for a hard disk or floppy controller and
serial or parallel ports.
J8 SER1 J9 SER2
J8 and J9 are 9 – pin connectors that provide an AT – compatible serial port
interface. Connect the cables supplied with the motherboard to J8 and J9. The
serial port base I/O port address and other serial port settings can be selected
in Peripheral Setup in WINBIOS Setup. The J8 and J9 pinout is shown below.
Pin
Signal Description
Pin
Signal Description
1
Carrier Detect
6
Data Set Ready
2
Receive Data
7
Request to Send
3
Transmit Data
8
Clear to Send
4
Data Terminal Ready
9
Ring Indicator
5
Ground
10
CUT PIN
Cont’d