1-18 Technical Information
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Enhanced Capabilitied Port (ECP)
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Enhanced Parallel Port (EPP).
The user selects between three parallel interface modes using Auto Setup. These include
unidirectional, bidirectional or enhanced. Unidirectional mode sends data output from the
standard ISA port only. Bidirectional mode sends data using the standard ISA port or PS/2
technology. Enhanced mode enables high speed data transmission to occur using either the
unidirectional or bidirectional modes.
The parallel port address is 378h and the interrupt level is IRQ07. Pin locations for the
parallel interface are listed in Appendix A.
SERIAL INTERFACE
The RS-232C serial port is a 9-pin connector on the system’s rear panel. The serial port
consists of a 16550 compatible serial port controller with a programmable baud rate up to
115,200 bps. The serial port connects an RS-232C device or an external modem. The serial
port address is 3F8h and the interrupt level is IRQ04.
NEC VERSA 6000 SERIES CHIP SET
Refer to Table 1-3 for a quick summary of the chip types used in the system. See the Ab-
breviations section at the beginning of this manual for a translation of chip technologies.
Table 1-3
NEC Versa 6000 Series Chip Types and Technologies
Chip
Manufacturer
Description
Technology
Intel Pentium P54LM
Intel
100-MHz CPU
320-pin TCP
Intel Pentium P54CSLM Intel
133 MHz CPU
320-pin TCP
82438MX (MTDP)
Intel
M-Triton Data Path
Controller
100-pin QFP
82437MX (MTSC)
Intel
M-Triton System Controller
208-pin SQFP
82371MX (MPIIX)
Intel
M-PCI IDE ISA Xcelerator
176-pin TQFP
N28F020-150
Intel
256k x 8 Flash ROM
32-pin PLCC
C&T 65550
Chips &
Technologies
VGA Controller
208-pin FQFP
PC87338VLJ
National
Semiconductor
Diskette Controller, IDE,
Parallel Interface
100-pin QFP
M38813E4HP
Mitsubishi
Keyboard Controller
64-pin TQFP
PCI1130
Texas Instruments
PCMCIA Controller
208-pin VQFP
ViBRA 16S
CT2504TCQ
Creative
Technology
Sound Integrated Circuit
100-pin PQFP