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PCM-SDIO Datasheet Preview

PCM-SDIO Datasheet

PC/104 Quad Serial and 48-line Digital I/O

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PCM-SDIO
PC/104 Quad Serial and
48-line Digital I/O
Features
• PC/104 compliant module
• Four serial ports with 16C554-compatible UART core
• Each serial channel supports:
• 16 byte Tx and Rx FIFOs
• CTS, RTS, DSR, DTR, RI and DCD
• RS-232/422/485 signal levels
• Programmable data rates up 115.2 kbps
• All 48 digital I/O lines support
• Input, Output or Output with Read back
• Interface with signals up to 30 volt
• 12 mA sink current
• 24 of the 48 DIO lines support change-of-state event
sense with selectable edge polarity
• Jumper selectable board I/O addresses
• -40° to +85°C operational temperature range
• +5 volt only operation
• Small size: 3.6 x 3.8 inches (90 x 96mm)
• Combines PCM-COM4A and PCM-UIO48-B
PCM-SDIO Block Diagram
Product Description
WinSystems’ PCM-SDIO combines both four serial and
48 digital I/O lines onto a single PC/104 module. This can
eliminate one board in a stack without sacrificing any
features or benefits. The digital portion is further enhanced
since its I/O can interface with up to 30 volt signals.
The controller is based upon a FPGA with both 16C554
UART and WS16C48-compatible cores. It supports various
programmable input/output and interrupt configurations.
The board is shipped in a standard configuration that
supports RS-232, RS-422, and RS-485 on all four channels.
Only +5 volts is required since the interface chips generate
the positive and negative voltages required for RS-232
signal levels.
The RS-422/485 configuration provides separate balanced
transmit and receive signal pairs. Both the RS-422/485
transmitter and receiver lines have jumper enabled termi-
nation resistors for impedance matching and biasing.
The PCM-SDIO also has 48 lines of digital I/O. The major
feature of this card is its ability to monitor 24 of the 48 lines
for both rising and falling digital edge transitions, latch
them and then interrupt the host processor notifying that
a change-of-input status has occurred. This is an efficient
way of signaling the CPU of real-time events without the
burden of polling the digital I/O points.
WinSystems | 715 Stadium Drive, Arlington, TX 76011 USA | Tel 817-274-7553 | Info@WinSystems.com | www.WinSystems.com




WinSystems

PCM-SDIO Datasheet Preview

PCM-SDIO Datasheet

PC/104 Quad Serial and 48-line Digital I/O

No Preview Available !

PCM-SDIO - PC/104 Quad Serial and 48-line Digital I/O
The WS16C48 controller supports 48 digital I/O lines ad-
dressed through six contiguous registers. A six-bit Write
Mask register allows the user to disable Writes on a byte
basis to configure the group as a “Read Only” port. Each
I/O line is individually programmable for input, output, or
output with Read back operation. The input lines are con-
nected so the current status of its output port can be read
from the corresponding input port (Read back). If the port
is used as input only, then the corresponding output port
bit must be cleared.
Each output channel is latched and has an open collector
driver (with a pull-up resistor) capable of sinking 12mA of
current. This allows direct control of up to 48 opto-isolated
signal conditioning to a single card for high density I/O
support.
There is a FET on each digital I/O line with an open-drain
configuration that can support from 5 to 30 volts.
Event Sense Operation - The WS16C48 supports 24 event
sense lines to generate an interrupt when an event occurs.
This means that 24 lines of the digital I/O can sense a posi-
tive or negative transition on the input. Transition polarity
is programmable and enabled on a bit-by-bit basis. Each
line’s transition is latched by the event so that even short
duration pulses will be recognized.
Front and Back Picture of PCM-SDIO
Technical Specifications
Electrical
PC/104 Bus, 8- or 16-bit stackthrough
48 Digital I/O lines, TTL compatible
4 Asynchronous serial channels the support RS-232/422/
485 interface levels
Data rate up to 115.2 kbps
Power
+5V ±5% at 250 mA (typ.)
Environmental
Operational from -40° to +85°C
RoHS compliant Yes
The PCM-SDIO has easy-to-use 0.100” box header connec-
tors to access the serial and digital I/O. WinSystems has
optional cables or a user can make their own.
Mechanical
Dimensions
Weight
3.6 x 3.8 inches (90 x 96mm)
3.2 oz (90.7 gm)
Interrupts - Interrupts are generated on error conditions
or receive/transmit buffer status for each of the serial chan-
nels. Each of the four channels are routed to a FPGA and
then to the PC/104 Bus connector. The event sense lines
of the digital I/O can generate interrupts as well. The FPGA
offers extreme flexibility with interrupt selection, IRQ as-
signment, and interrupt sharing.
The PCM-SDIO also contains a Read Only Interrupt Sta-
tus Register to allow quick identification of the UART
channel(s) needing service.
WinSystems - The PCM-SDIO is a replacement and is pin
compatible for the PCM-UIO48A and PCM-UIO48A-G as
well as for WinSystems’ PCM-COM4A.
The PCM-SDIO supports Linux, Windows XPe, and DOS.
Free drivers are downloaded from our website.
Ordering Information
PCM-SDIO-144 Four serial channel and 48-line digital I/O
card PC/104 interface
Cables
CBL-115-4
4-ft., Opto rack interface
CBL-129-4
4-ft., ribbon cable, 50 pin. Both ends
with 50-pin socket termination
CBL-173-G-1-1.0 20-pin ribbon cable to two 9-pin,
male D sub connectors
WinSystems reserves the right to make changes to prod-
ucts and/or documentation without further notification.
Product names of other companies may be trademarks of
their respective companies.
OEM Configurations - If you need a special configura-
tion, contact a WinSystems factory application engineer to
discuss your requirement.
Parhelia B.V.
info@parhelia-bv.eu
WinSystems | 715 Stadium Drive, Arlington, TX 76011 USA | Tel 817-274-7553 | Info@WinSystems.com | www.WinSystwemws.wco.mparhelia-bv.com
+31(0)10 284 95 46


Part Number PCM-SDIO
Description PC/104 Quad Serial and 48-line Digital I/O
Maker WinSystems
Total Page 2 Pages
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