AR-B1380/AR-1380A User’ s Guide
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X
X
1
2
3
4
5
6
7
0
STROBE
AUTO FD XT
INIT
SLDC IN
IRQ ENABLE
DIR(write only)
Figure 2-3 Bit Definitions
NOTE:
X represents not used.
Bit 5: Direction control bit. When logic 1, the output buffers in the parallel port are disabled allowing
data driven from external sources to be read; when logic 0, they work as a printer port. This bit
is write only.
Bit 4: A1 in this position allows an interrupt to occur when ACK changes from low state to high state.
Bit 3: A1 in this bit position selects the printer.
Bit 2: A0 starts the printer (50 microseconds pulse, minimum).
Bit 1: A1 causes the printer to line-feed after a line is printed.
Bit 0: A0.5 microsecond minimum highly active pulse clocks data into the printer. Valid data must be
present for a minimum of 0.5 microseconds before and after the strobe pulse.
2.9 SOLID STATE DISKS
The AR-B1380/1380A provides three JEDEC DIP sockets and supports three kinds of solid state disks,
EPROM, FLASH, and SRAM. With EPROM, the total memory is up to 3MB, and FLASH or `SRAM is up to
1.5MB. The three sockets can be configured as three sockets for SSD or two sockets for SSD plus 1
socket for DiskOnChip. The DiskOnChip socket supports memory from 2MB to 144MB. The
DiskOnModule is connected to the onboard IDE connector. All the flash disks are ideal for diskless
systems, and are also highly reliable for high-speed access applications, as controllers for industrial use, or
line test instruments, etc.
2.10 ETHERNET CONTROLLER
The Ethernet controller of the AR-B1380A is a highly integrated design that provides all Media Access
Control (MAC) and Encode-Decode (ENDEC) functions in accordance with the IEEE 802.3 standard. The
Ethernet controller can interface directly with the PC-AT ISA bus without any external device. The interface
to PC-AT ISA bus is fully compatible with NE2000 Ethernet adapter cards, so all software programs
designed for the NE2000 standard can run on the Ethernet controller card without any modification.
Microsoft’ s Plug and Play and the jumperless software configuration function are both supported. The
capability of the PnP and Non-PnP mode auto switch function allows the users to configure network cards.
No jumpers or switches are needed to set additionally when using either the PC or PnP function. The
integrated 8Kx16 SRAM and 10BASE-T transceiver make the Ethernet controller more cost-effective.
Caution: AR-B1380A doesn’ t support the application of LAN Boot.
2.11 VGA CONTROLLER
AR-B1380A provides a super VGA controller for CRT and LCD displays. It supports CRT color monitors,
STN, Dual-Scan, TFT (see note below), monochrome and color panels. It can be connected to create a
compact video solution for the industrial environment. 1MB of VRAM on-boarded allows a maximum CRT
resolution of 1280X1024 and a LCD resolution of 640X480 with 64K colors. TFT resolution can be set at
640X480 or at 800X600. It fulfills the needs for higher graphics performance.
Summary of Contents for AR-B1380
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