7 definitions, 8 contact, 7definitions – Matrix Orbital GTT50A User Manual
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15
GTT50A Hardware Manual
7
Definitions
9-Slice: Graphic format used to scale bitmaps, usually rectangular, without distorting their geometry.
Nine regions define the object center, four corners, and four sides for accurate up or down scaling.
ASCII: American standard code for information interchange used to give standardized numeric codes to
alphanumeric characters.
BPS:
Bits per second, a measure of transmission speed.
GUI:
Graphical user interface.
Hexadecimal: A base 16 number system utilizing symbols 0 through F to represent the values 0-15.
I
2
C:
Inter-integrated circuit protocol uses clock and data lines to communicate short distances at
slow speeds from a master to up to 128 addressable slave devices. A display is a slave device.
LSB:
Least significant bit or byte in a transmission, the rightmost when read.
MSB: Most significant bit or byte in a transmission, the leftmost when read.
RS232: Recommended standard 232, a common serial protocol. Logic levels can be as high as +/-30V, a
high level is negative, a low is positive.
RS422: Recommended standard 422, a more robust differential pair serial protocol.
SDA:
Serial data line used to transfer data in I
2
C protocol. This open drain line should be pulled high
through a resistor. Nominal values are between 1K and 10K Ω.
SCL:
Serial clock line used to designate data bits in I
2
C protocol. This open drain line should be pulled
high through a resistor. Nominal values are between 1K and 10K Ω.
TTL:
Transistor-transistor logic applied to serial protocol. Low level is 0V while high logic is 5V.
USB:
Universal Serial Bus protocol widely used in PCs.
8 Contact
Sales
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