CHAPTER 10: SEGMENT OPTION GENERATOR

2.From [SEGMENT DECODE TABLE], select the SEG pin/COM pin to which you want to assign the memory address/data bit selected in 1 by clicking the appropriate cell. A 3-digit numeric value is displayed in the cell, showing the selected address (2 high-order digits) and data bit (1 low-order digit), and the cell changes color to yellow.

Selection example:

If you select an incorrect cell, click the [Delete] button to clear its assignment and reselect from 1. Two or more cells selected by dragging an area can also be deleted using the [Delete] button. Before selecting a cell in [SEGMENT DECODE TABLE], always select a cell in [Memory Address/ Data bit].

3.Click the SPEC cell for the segment selected in 2 and then the [Seg] button. The cell shows the letter S and changes color to red. This means that the segment has been set for a LCD segment output pin.

If your chip requires selecting segment output and DC output every two pins, the other pin that comprises a pair is set in the same way.

Selection example:

4.Repeat steps 1 to 2 for all segments used for LCD output. Specification selection in 3 may be performed later.

If any COM cell in one SEG pin is unused, leave it blank.

Selection example:

(4)Setting DC outputs

When using SEG pins for general-purpose DC output, assign segments according to steps 1 and 2 described in Item (3), "Setting segment outputs". However, output control works in such a way that the display memory assigned to COM0 is enabled while the display memory assigned to COM1 through COM3 are disabled. Therefore, set a memory address/data bit for only COM0 cell and leave memory address/data bits for COM1 through COM3 cells blank.

For DC output, you may select an output mode between complementary output and Nch (or Pch) open-drain output. Select your desired output in SPEC cell using the buttons listed below: [Comp] button: Complementary output (C)

[Nch-] button: N-channel open-drain output (N)

[Pch-] button: P-channel open-drain output (P)

If your chip requires selecting an output mode every two pins, the other pin that comprises a pair is set in the same way.

Selection example:

(5) Setting SEG/COM shared pins

Whether the SEG/COM shared pins output segment signals or common signals is determined by selecting the function option.

When using the shared pins as SEG pins, allocate display memory addresses/bits as shown above and leave unused COM cells blank.

When using the shared pins as COM pins, select segment/common shared output ([M] button) as the output specification and do not allocate memory.

Note: This setting is required only for microcomputers that have SEG/COM shared pins.

S5U1C63000A MANUAL

EPSON

257

(S1C63 FAMILY ASSEMBLER PACKAGE)