78
8 COM1 CTS 8 COM2 CTS
9 COM1 RI 9 COM2 RI
Parallel Port
The parallel port is used almost exclusively for printers, but is compatible with any peripheral
device designed to interface with a standard Centronics-type parallel port. The FDC37C932 is the
system’s parallel controller, among other things. The FDC37C932 supports a multi-mode bi-
directional parallel port. Only shielded cables should be used with the parallel port (DB-25).
Refer to page 74 for information about the parallel port functionality of the FDC37C932.
Pin
Signal Pin Signal
1 STB 10 ACK
2 Data 0 11 Busy
3 Data 1 12 Paper Empty
4 Data 2 13 Select
5 Data 3 14 ATF
6 Data 4 15 Error
7 Data 5 16 Init
8 Data 6 17 SLCTIN
9 Data 7 18 - 25 Ground
Video Port
The video port is a standard 15-pin port. For InterServe systems, graphics display is provided by
the Matrox MGA-2064W on the I/O expansion board. StudioZ RAX uses the video port for VGA
loopback processing. Refer to page 73 for information about the video controller.
Pin
Signal Pin Signal
1 Video 1A 9 Video 9A
2 Video 2A 10 Ground
3 Video 3A 11 Monitor ID0
4 Monitor ID2 12 Monitor ID1
5 Ground 13 Video 13A
6 Ground 14 Video 14A
7 Ground 15 Monitor ID3
8 Ground
Flash EPROM
The MSMT329 uses a flash EPROM chip (MYPG764) for the system’s Basic/Input Output System
(BIOS). The System Setup Guide contains information about reprogramming the flash EPROM with a
new BIOS when necessary. It also defines the features of the AMIBIOS Setup program, used to
modify the BIOS parameters.
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