16t202da1j Pacer Components, 16t202da1j Datasheet - Page 13

• Manufacturer Part Number: 16t202da1j
• Description: 2x16 Lcd Compatible Vfd Module
• Manufacturer: Pacer Components

2X16 LCD Compatible VFD Module
6.2 Instruction Descriptions
6.2.1 Display Clear
6.2.2 Cursor Home
6.2.3 Entry Mode Set
This instruction
(1) Fills all locations in the display data RAM (DD-RAM) with 20H (Blank-character).
(2) Clears the contents of the address counter (ACC) to 00H.
(3) Sets the display for zero character shifts (returns original position).
(4) Sets the address counter (ACC) to point to the DD-RAM.
(5) If the cursor is displayed, moves the cursor to the left most character in the top line (upper line).
(6) Sets the address counter (ACC) to increment on the each access of DD-RAM or CG-RAM.
This instruction
(1) Clears the contents of the address counter (ACC) to 00H.
(2) Sets the address counter (ACC) to point to the DD-RAM.
(3) Sets the display for zero character shift (returns original position).
(4) If the cursor is displayed, moves the left most character in the top line (upper line).
The I/D bit selects the way in which the contents of the address counter (ACC) are modified after every access to
DD-RAM or CG-RAM.
The S bit enables display shift, instead of cursor shift, after each write or read to the DD-RAM.
The direction in which the display is shifted is opposite in sense to that of the cursor.
For example, if S=0 and I/D=1, the cursor would shift one character to the right after a MPU writes to DD-RAM.
However if S=1 and I/D=1, the display would shift one character to the left and the cursor would maintain its position
on the panel. The cursor will already be shifted in the direction selected by I/D during reads of the DD-RAM,
irrespective of the value of S. Similarly reading and writing the CG-RAM always shift the cursor. Also both lines are
shifted simultaneously.
* I/D = 0: The address counter (ACC) is decreased.
* S = 1: Display shift enabled.
* S = 0: Cursor shift enabled.
* I/D = 1: The address counter (ACC) is increased.
* Cursor Move and Display Shift by the "Entry Mode Set"
RS = 0, R/W = 0
RS = 0, R/W = 0
RS = 0, R/W = 0
DB7
DB7
DB7
I/D
0
0
0
0
1
0
1
DB6
DB6
DB6
0
0
0
S
0
0
1
1
After writing the DD-RAM data
Cursor moves one character to the left
Cursor moves one character to the right
Display shifts one character to the right without cursor Cursor moves one character to the left
Display shifts one character to the left without cursor
DB5
DB5
DB5
0
0
0
DB4
DB4
DB4
0
0
0
DB3
DB3
DB3
0
0
0
16T202DA1J (Rev. 4.0)
DB2
DB2
DB2
0
0
1
Page - 13 of 17
DB1
DB1
DB1
I/D
0
1
DB0
DB0
DB0
1
*
S
02H or 03H
Hex. Range
Hex. Range
Hex. Range
04H ~ 07H
01H
After reading the DD-RAM data
Cursor moves one character to the left
Cursor moves one character to the right
Cursor moves one character to the right