STANDARD SERIAL COMMUNICATION INTERFACE and ...

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Standard Serial Interface Protocol Description generating the image in the cumulative drive method, hence creating an illusion that the new image will grow in brightness or "Swell" from a blank background during the update. = "Fade-ON" image presentation method. Like the "Swell-ON", this method is used as an alternate method of generating a static frame of data. This method will automatically use the “No OFF” OFF update method, outlined in the next bullet text. Unlike the "Swell- ON", this update method will NOT erase the screen section prior to generating the image in the cumulative drive method, hence creating an illustion that the new image section will start to appear as the previous image starts to disappear, hence the new image will appear to "Fade" over the previous. 12. OFF Update Method – Byte to indicate how the controller is to remove the respective partial image or message. The following codes apply: = “Wipe-OFF” image removal method (not valid for graphic messages). This removal method is the opposite of the “Wipe-ON” presentation method, with the characters being removed from right to left. The left-most character is the last character removed from the image area. = “Scroll-OFF” image removal method (not valid for graphic messages). This removal method is the same ast the “Scroll-ON” presentation method, with the characters being removed from right to left. The right-most character is the last character removed from the image area. = “Open-OFF” image removal method. This removal method is the opposite of the “Close-ON” presentation method, with the characters being removed from center towards the top and bottom edges of the image area. The middle-most rows of the image are the last portions removed from the image area. = “Close-OFF” image removal method. This removal method is the opposite of the “Open-ON” presentation method, with the characters being removed from the top and bottom edges towards the center of the image area. The top and bottom rows of the image are the last portions removed from the image area. = “No OFF” image presentation method. This number will inform the respective controller to NOT remove the respective partial image after the respective pause duration has expired. 13. - This single byte of data is bit-mapped to indicate the following features: • Bit 7 through 3 – Reserved for future use. • Bit 0 – Bit 2 - Implement a 1x to 8x Image height feature. For instance, a 10 row partial image would be output on 80 rows (or half the display) of the respective display if all 3 bits are set high. The same 10 row image can be output on 40 rows of the display if bits 0 and 1 are set high. Clearing all bits will output the image to the normal, 1x mode where the 10 row image will be output on 10 rows of the display. Note: Changing the contents of an image while writing the image to the screen may result in an undetermined image to be displayed. 5.4.1 "A”, “N", “F” and “H” Command Text Control Characters As implied in the referenced command descriptions, the resident controller module firmware has the capability to output text Images requested by the host computer. The host does not need to inform the display module which pixel to turn on or off to create a text character image. The controller modules also have the capability to change fonts and respond to font control characters. When the following special control characters (described in hexadecimal format within the "") are added within field 6 of the "A”, “N”, “F” or “H” application layer commands, the following actions are implemented (the following control characters must be the 1 st data elements entered in field #6): Standard Serial Communication Interface Description, © 1998-2002 Kent Displays Inc., doc. # 25016 Revision T, Page 23 of 52
Standard Serial Interface Protocol Description 16x30 Pixel Characters: Each of the following described font controls will occupy a 16x30 (columns x rows pixel space/character. Up to 15 characters/text line and up to 8 text lines/display image can be output using these font controls. a) (VT) = Turn ON Tahoma 16, 30 row Font Control Character. All characters entered in field 6 after the reception of this control character will be output with the modified Tahoma 16 point font format. A carriage return (0D in hexadecimal) will need to be entered between each text line if used with full screen text command. b) (HT) = Turn ON Times 16, 30 row Font Control Character. All characters entered in field 6 after the reception of this control character will be output with the modified Times Roman 16 point font format. A carriage return (0D in hexadecimal) will need to be entered between each text line if used with full screen text command. 10x15 Pixel Characters: The font control below will occupy a 10x15 (columns x rows) pixel space/character. Up to 24 characters/text line and up to 16 text lines/display image can be output using this font control. c) (DC2) = Turn ON Fixed Distance 11, 15 row Font Control character. All characters entered in field 6 will be output in the dual line font format. A carriage return (0D in hexadecimal) will need to be entered between each text line if used with full screen text command. 8x10 Pixel Characters: The font control below will occupy a 8x10 (columns x rows) pixel space/character. Up to 30 characters/text line and up to 16 text lines/display image can be output using this font control (Only available with 10120 controller module). d) (DC2) = Turn ON Fixed Distance 9 point Font Control character. All characters entered in field 6 will be output in the Fixed distance 9 point font format. A carriage return (0D in hexadecimal without a line feed) will need to be entered between the consecutive lines of text if used for a full screen text command. 6x8 Pixel (“5x7”) Characters: The font control below will occupy a 6x8 (columns x rows) pixel space/character. Up to 40 characters/text line and up to 20 text lines/display image can be output using this font control (Only available with 10120 controller module). e) (ENQ) = Turn ON 5x7 character Font Control characters. All characters entered in field 6 will be output in this format after reception. A carriage return (0D in hexadecimal without a line feed) will need to be entered between the consecutive lines of text if used for a full screen text command. Note: The absence of the above control characters will command the respective controller to output the respective image in Letter Gothic 22 point, 16x30 row font; the default font. f) (DC3) = Turn ON Underline control character. All characters entered in field 6 after the reception of this control character will be output in Underline format. The absence of this control character will command the respective sign to output the image with the default non-underlined mode. g) (DC4) = Turn ON Italicized control character. All characters entered in field 6 after the reception of this control character will be output in Italicized format. The absence of this control character will command the respective sign to output the image with the default non-Italicized mode. Italicized font controls are NOT supported by 10120 controller module. Standard Serial Communication Interface Description, © 1998-2002 Kent Displays Inc., doc. # 25016 Revision T, Page 24 of 52
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