y address造句

• Any address could be sent in 12-bit mode simply by sending in an " extra byte " between the high and low Y characters, using the same character range as the low-order Y addresses.
• With the Enhanced Graphic Module, the terminal would use bits 1 and 2 to add to the front of the normally 5-bit high-order X address, and bits 3 and 4 to add to the high-order Y address.
• This counter drove the X address of the display RAM . On every row, the CPU updates the row number selected from the character ROM ( and programmable character RAM ) and every 16th row it increments the Y address of the display RAM . At the end of the screen the output is blanked, and the CPU gets to do some  real work until the FIRQ pin is pulsed by the 50 Hz line from the power supply.